Archive of Our Own

We'd always been the same in every way. A matched pair. We were Fuwawa and Mococo before either of us were ourselves.

Every cliché twin thing it was possible to do, we did. We dressed in the same outfits, had the same hairstyle. Where one of us went, so did the other. We slept together, ate together, bathed together, played together, studied together, saw the doctor together.

It was no different when at the onset of puberty we went to the clinic together to get our sub-gender tests done.

And that was where it all started to come apart. Sure we'd always known we were technically fraternal not identical twins, our eye colours had always been different, our hair different to the touch, and beneath our clothes our mismatched genitals were a dead giveaway. Still, just because Mococo had a penis and I had a vagina didn't mean we weren't both girls, just as it didn’t mean we weren’t just a pair of normal betas like our parents.

That, it turned out, was not the case. The results were stark and devastating, I was an omega and Mococo an alpha. It felt to me like a slap in the face. I couldn't believe it, I wouldn’t believe it, I didn't want to believe it. But time proved them true. Puberty changed our bodies, my breasts grew and grew where Mococo's stayed small, my body began to produce slick, and by age fourteen we'd both had our first heat and rut respectively.

But what was going on with our bodies was just the start. Our family moved house to a place where we could have separate rooms and go to a different school with separated alpha and omega classes. We stopped doing absolutely everything together, stopped looking so much like each other. I grew my hair out long, Mococo cut hers down. I began wearing dresses, she began wearing shorts. I joined the student council, Mococo joined the soccer club.

The only thing that didn't change was our closeness. At the end of the day, when I was done with council work and she was done with practice we still always met up and walked home together, still ate lunch in the courtyard together, still spent our weekends and evenings together. During my heats I'd sleep in Mococo's clothes and during her ruts I'd hold her and let her smell me to calm her down. 

At the end of the day we still needed each other, loved each other, on a level nobody else could match. I had my council friends and Mococo had the team but we were first and foremost each other's most precious person.

Or at least that's what I thought. 

It was the night of our eighteenth birthday party. Since we were born on either side of midnight and so had different birthdays our birthday was always a two day full weekend affair, even if it didn’t fall on the weekend, with the first day being my day and the second being hers.

We'd invited both our friend groups to come over and spend the night at our place with the alphas sleeping in Mococo's room and the omega's in mine per our parents' request. In retrospect it was probably a silly idea allowing a bunch of highschool seniors to share the same space. Hormones were so thick in the air as to be cloying even in the crisp early February air.

At some point during the night I'd lost track of Mococo and as midnight approached I was looking for her. We'd always spent midnight together so I could be the first to wish her a happy birthday. It was an important ritual for us, at least it was to me.

By eleven fifty-eight I was panicking, not wanting to break what was already a twelve year streak, now taking to roaming the chilly garden to find Mococo. Only to stop dead in my tracks as I saw her, sat at the edge of the pool next to Nerissa, vice president of the council and one of my best friends, their bare feet dangling above the freezing pool water.

I stopped dead in my tracks and found myself ducking from view close enough to watch their conversation. Mococo was laughing at something Nerissa had said. Both of them were taking any excuse to inch closer to each other. I felt my stomach turn, but I couldn't pull my eyes away as I watched their lips be drawn to each other. 

It was just the tiniest, most innocent kiss, but as I watched Mococo pull away with that smile in her face I felt my heart shatter. It was an expression I thought only I was allowed to see, all her tomboy bluster swept aside, leaving just the cute girl I’d always known was underneath.

I turned away from it, staggering back to the party, midnight having passed while Mococo was kissing Nerissa. I put on my best smile as I walked back in. 

“Couldn't find her.” I lied to anyone who asked, as I busied myself with being the perfect host, ensuring futons were laid out in both rooms before feigning tiredness and heading to bed early. 

Elevated and out of sight on my bed from the people on the floor, I seethed. Not at Nerissa, lying to my right in blissful sleep. She was an earnest girl who wore her heart on her sleeve and it was only natural to fall for my sister.

Mococo on the other hand… This was our eighteenth birthday. The last one we'd have in highschool. It was supposed to be special and she was supposed to know that. The betrayal felt unimaginably huge. This was our day and we were meant to spend it together. 

The next day passed slowly, I couldn't help but notice how close not just Nerissa and Mococo were but how our other friends were pairing off too. Gigi the team's goalkeeper and Cecila the council’s treasurer, Liz the student council president and the soccer team's manager Raora. The only one seemingly unaffected was our childhood friend Bijou, a fellow omega a year below us in school.

I hoped on Monday things would be back to normal. Mococo had already headed to morning practice by the time I woke up from a second night of poor sleep but she'd made me a bento like normal. I took that as the best sign I could and headed to our normal lunch spot, only for Mococo to appear with Nerissa in tow. 

“Is it okay if Rissa joins us?” She asked, the nickname like a knife in my gut. 

“Of course!” I lied with a smile, budging over on the bench slightly, only for Nerissa to sit between us, her bigger body immediately blocking my little sister from view.

But it was when she pulled out a bento identical to our own that I really lost it. Mococo had made her lunch, she'd already planned to include Nerissa in our one time in the school day we got to spend together.

I lost my appetite completely.

“Oh, I just remembered I have some work I need to do in the council room.” I lied as there was a lull in the conversation the other two were having without me, standing up and stuffing my still mostly full bento box back into my bag.

“Huh, you do?” Nerissa asked. “Do you need help?”

“It's okay vice president, just secretary stuff I need to do for the election.” I lied, putting my all into projecting the image of kind affable Fuwawa-chan. “You just keep my little sister company, yeah?”

“Okay!” Nerissa smiled.

“See you after school!” Mococo called after me. 

“Yeah, see you!” I waved back, hopeful that at least that part of my day may retain some normalcy as I hurried to the student council office.

Thankfully the office was empty and I was able to drop the façade, slamming a fist onto the desk in frustration and screaming into the pillow I kept at my desk to sit on.

“Oh my, I appear to have entered at a bad time.” A voice came from the doorway. 

Shocked, I turned to see who had caught me in my moment of weakness, though I should have guessed. Leaning up against the doorframe was Shiori Novella, ‘president’ of the ‘underground literature club', an unrecognised student organisation and the bane of the council's existence. “What do you want, Shiori?”

“I'm here once again to submit an official application for the ULC. But honestly who even cares about that right now?” Shiori grinned, walking in and crumpling the paper in her hand and tossing it into the waste paper basket by the president's desk without looking. “What in the world has our perfect little student council secretary so frustrated huh?”

“None of your business.” I responded tersely.

“Isn't it?” Shiori raised an eyebrow, now standing before my desk towering over me. “Doesn't, for example, have anything to do with your sister and Nerissa?”

I must have let it show in my face when she said those words the way she grinned and leant in, the undone top three buttons of her uniform giving me an eye full of her ample cleavage.

“You don't like it either then?” She continued, not waiting for my response. “I figured as much.”

“What does it matter to you?”

“Isn't that obvious? Nerissa is mine.”

“I was under the impression you broke up.”

Shiori’s grin turned to a frown. “Only because your President got into her head, convinced her I was toxic .” Her fingers came up to do air quotes around that last word.

“That was the impression I got.”

Shiori scoffed. “Like any of you have any idea what our relationship was like. I just loved more intensely than most. I just didn't like to share. Is that such a crime?”

I shifted a little in my seat. “I suppose not.”

“Exactly, you feel it too don't you? About your darling baby sister? Shh…” She pressed a finger to my lips preempting my objection. “No need to deny it, I don't judge you for it. We can't help who we love.”

I swallowed the objection she preempted, figuring it best to just let it slide. “So, what do you actually want ?”

“I'm proposing a deal.” Shiori stood back up to full height, towering over me as I sat even though she was only an inch or two shorter than me standing. “Nerissa still loves me still, I know it and she knows it, even if she doesn’t admit it. If she sees me with another girl it's going to make her so jealous, she won't be able to stand it. She'll come crawling back to me and then, bam , she's once again mine and your little Moco-chan is yours. And the best part for you? As far as she knows, you were just as wronged as she was, both of you were so horribly cheated on after all, I take all the heat, you reap all the reward.”

I blinked, taking in the barrage of information she’d just thrown at me. “You come up with this plan just now?”

“I might have been aware of their blossoming romance a few days longer than you.” Shiori shrugged.

“You're asking me to hurt my sister and my friend.”

“Aren't they hurting you right now? Didn't they abandon you on your birthday? Aren't you in here right now because you can't stand them being together?”

This was wrong. I knew it. “What exactly would I have to do?”

“Date me.”

“Like, fake dating?”

“Are you kidding? They'd see through that in a moment, no, we have to make it real .”

I thought about all my friends paired off at our party, how alone I felt. “What would be our story? We're a pretty unlikely couple after all, I’m on the student council and you’re the girl who got kicked out of the literature club for using school resources to print excerpts of The Anarchist Cookbook .”

“You think I haven't thought about this? Early on, we just plant the seeds a little, be seen talking to each other a bit and then we make our big move on Valentine's day. Besides, the perceived difference between us is what will make the people really talk. ”

“Valentine's day? Isn't that a little…”

“Cliché? I know. But I also know Nerissa and she's exactly the kind of cheesy to want to go public on valentine's day. The first shot in this war will be fired that day, when the two of them going public is completely overshadowed by us doing the exact same thing.”

“This is a crazy plan.” I sighed. “We graduate in two months, do you really think you'll be able to break them up by then?”

“Would you rather spend every lunch break, evening and weekend stuck with them for the next two months hoping they'll just break up on their own?”

“No.”

Shiori offered me a hand. “Then do something about it.”

It was a terrible plan. It was a cruel, stupid plan. 

It was the only plan I had. 

I took her hand and shook it. 

“We have a pact.” She grinned. “Welcome to the dark side, Secretary Abyssgard.”

Shiori wasn't lying when she said she had a plan. After exchanging contact information and going our separate ways she began to give me quite clear instructions on how exactly I should prepare for us going public in a week. How often I should be seen texting, what days I should skip lunch with Mococo and Nerissa. 

I saw her roughly once a day at some point every day for the next week. Sometimes she'd be seen talking to me by the shoes lockers, sometimes we'd be seen at lunch together, sometimes she'd come by the student council and be seen bugging me about something. Universally it was done either in front of Nerissa or someone she knew would talk to Nerissa about it.

She even gave me instructions on what to do when Nerissa eventually asked me about it, which she did.

“I've heard you're talking to Shiori more.” Nerissa said to me one day in the student council room as we worked on some paperwork.

“Yeah she's taken to bugging me instead of you and Liz I guess.” I chuckled, trying to follow my partner's instructions as naturally as I could. “Guess she's given up on bugging you about her club and I'm the new target.”

“Good luck, the girl doesn't give up easily.” Nerissa sighed. “I know that better than anyone.”

“Is she really that bad?”

“Honestly? I don't know. Weird as that might be to say given how long we went out but, I don't know that I ever saw the real her. It's always all games with her on some level.”

“Why did you break up?”

Nerissa gave me a look. “You don't know? I thought our dirty laundry was a part of the public record.”

“I'm not really one for gossip.” I shrugged.

“We had a fight. A pretty bad one. About her stupid club. She asked me to use my position as vice president to help it be recognised, I told her to reconcile with the actual literature club. She called me a bootlicker.” Nerissa recounted an odd smile appearing on her face. “She said it's me or the council.”

“And you picked the council?”

“I'm still here aren't I?” Nerissa laughed. “To be honest I thought she'd relent, come to understand that I can love her and still be on the council but…”

“It never did.”

“No, and it never will now I think. It's been too long.”

“You really wouldn't give her another chance?”

Nerissa was quiet for a moment. “Honestly? I don't know. Besides, it doesn't matter now.”

“Oh?” I acted interested even though I knew exactly what she meant and that it was she wanted to fuck my sister. “And why is that?”

She grinned. “It's a secret!”

Eventually the day of truth was upon us. By now rumors about Shiori and I were already swirling a little and as I entered the school building I could feel many eyes upon me. Just as Shiori had said. 

Keep watching. I thought, trying my best to act unaware of them as I approached my shoe locker and upon opening it was greeted by a landslide of letters falling out of it each one marked with a heart brushed on in black calligraphy ink.

For once I didn't need to act shocked at the display, as Shiori had just told me to expect a note . No doubt she thought my real reaction would sell the illusion better.

I picked one up and opened it. Inside was simply a time and place. Lunchtime, behind the auditorium. Of course I already knew that much, Shiori had picked the palace and time days ago. Secluded but not so much so that there wouldn't be people around to see, before the end of the day when confessions traditionally happened to get in first and so that word could spread around school all afternoon. 

Acting panicked, I stuffed all the notes I could back in the locker and put the rest in my bag. Then I took my time a little swapping shoes and getting to class, ensuring word of the incident reached class 3-C before I did. Sure enough, all eyes were on me as I entered the room and sat down.

“Hey!” The whispered, accented voice of my desk neighbour Raora came from my left. “Is it true you got a… You know.”

“More than one.” I replied, pulling a couple out of my bag. “My locker was stuffed full of them.”

“All the same?” Her eyes were wide.

“Identical.” I nodded. “Guess whoever it was didn't want there to be space for competition.”

“Do you think it's…” Raora trailed off and I tilted my head in mock confusion. “Never mind.”

I'd clearly done a good job acting dense, I figured, as that was the last I heard regarding speculation on who might be confessing to me. Though I still received many knowing looks from people as I went about my normal valentine's day ritual of handing out obligation chocolates. 

Morning classes passed quickly and when the lunchtime bell rang I made my way slowly over to the meeting point like it'd been told to, so that as many onlookers as possible could position themselves to witness it.

Shiori was waiting for me, a grin on her face as I approached.

“Shiori? You're the one who put those in my locker?” I recited the script I'd spent the last night learning by heart.

“I did. I think you know why.” She walked towards me, stopping just inches from me.

“I… have an idea.” I continued. “But…”

“But what?”

“I…” I hesitated and looked away from her. “It's just unexpected…”

“It's unexpected for an Alpha to fall for a beautiful Omega?”

“We're so different…”

“Opposites attract.”

“We barely know each other.”

“I'd like to change that.”

“This is all so sudden…” I looked away.

“I know.” She put a gentle hand on my face and guided me back to look at her. “But I can't deny these feelings. Will you give me a chance to prove them to you?”

“I…” I took a deep breath to sell my big line in the script. “I will!”

Only for Shiori to go entirely off-script, pulling me close and kissing me. No doubt trying to once more get genuine reaction from me. I pushed back at her but to no avail. 

Right.

It hadn't even occurred to me till then but of course I couldn't push her. She was an Alpha after all. Far stronger than she let on.

Instead once satisfied she pulled back with a satisfied look on her face, her voice dropping to a whisper so only we could hear. “I did tell you. Real dating.”

I looked back at the girl who had so nonchalantly taken my first kiss in sacrifice to our scheme, ten conflicting feelings shooting through my gut at once. 

“Don't look at me like that, we made a deal, and the deed is done, to back out now would be to throw it all away.”

The worst thing was, she was right. 

I tried to collect myself, thinking of the future I'd have with Mococo once this was all done. It was just two months. I could deal with it.

I was going to have to.

Credit to Shiori's plan, word spread fast and as I entered the council room that day all eyes were on me immediately.

“Happy Valentine's day everyone!” I said cheerfully, pulling some chocolates I'd made the night before out of my bag to hand to my fellow council members.

“Is it true?” Nerissa asked as I placed hers on her desk. “About you and Shiori?”

“She asked me out, yeah.” I nodded.

“And you said yes?” There was something in her voice I couldn't quite place.

“Well, yeah. I mean, I figured I'd give it a go. I hardly have any other romantic prospects.”

“I see.” Nerissa seemed sullen. 

“Relax, I won't start bugging everyone about her club I promise.” I laughed trying to ease the tension. “Besides I think she knows I don't have that much pull as secretary.”

“Yeah.” Nerissa put on a smile. “Thanks for the chocolate Fuwawa.”

“Of course!” I gave her a thumbs up and turned to Elizabeth. “I have some for you too, president!”

“Wait, Fuwawa.” Nerissa put out a hand to grab me. “Um, there's something else I want to say.”

“Yeah?”

“I asked Mococo out today.”

A cold spike felt as though it was plunged into my chest. I tried to ignore it and put on my best look of surprise. “Oh?”

“She said yes.”

“Congratulations! I'm happy for you.” I lied.

“I also asked if she wanted to go get food together after school and so she asked me to pass along that you should leave without her.”

“I see.” The edges of my fake smile faltered. I wanted to scream, to curse, to yell. I pushed the feeling down deep, as far as I could and reapplied my smile. “Have a good time!”

After that I simply buried myself in my work as much as I could. Luckily for me there was a lot of it, with elections for next year's student council right around the corner.

Still, when five pm rolled around I was ready to go and, knowing I wasn't going to have to wait for Mococo, I was out of the door right away. 

What I wasn't expecting was someone else waiting for me by my locker.

“Hey lover.” Shiori grinned at me, her bag slung over one shoulder, outdoor shoes already on. “Wanna walk home together?”

“Sure.” I nodded, grabbing my shoes. Honestly, I wasn't in the mood to be around anyone but Mococo right now but I knew why Shiori wanted us to be seen together.

“There's a place I wanna stop on the way if you don't mind.”

I shrugged as I slipped into my loafers. “I don't have anything else on.”

“Great!” Shiori threw an arm around my shoulder and leant in. “Though in future maybe be a little more enthusiastic in case anyone's listening.”

“It's been a long day Shiori.”

“I understand. But we need to be all in on this if it's going to work.”

“I know…”

My fake real girlfriend took my hand and squeezed it. “I get you, trust me, this place will help.”

With that she led me out of the school grounds and into the city, navigating through a maze of back alleys until arriving at an unassuming looking building that Shiori shouldered her way into.

Immediately I felt the eyes of the clerk on me, a tall, pale man with heavily pierced ears and thick eyeliner. “Who's this Novella?” He asked, his boots up on the desk.

“This is my new girlfriend.” Shiori smiled. “She’s going to be coming here from time to time so let her into my room when she does.”

“That so? I remember you saying your last girlfriend was the love of your life just a few weeks ago.”

“Don't remember asking for your input Desmond.”

“Whatever.” The man pulled his feet down from the desk and fished out a white plastic card which he tossed to me. “Welcome new girl, I hope you know what you're getting into with her.”

All I could think was that more and more I was realising I didn't as Shiori pulled me deeper in. 

“Where are we?” I asked, trailing behind Shiori as she beeline down a hallway to a door marked 17.

“My private sanctum.” Shiori smiled, holding a hard up to a card reader and opening the door. “Omegas first.”

Accepting her invitation I stepped through into a small box of a room covered wall to wall in bookshelves while on the floor between them was a mattress covered in black pillows and blankets. “Wait, is this a storage unit?”

“A private one, yes.” Shiori walked in behind me and dropped onto the mattress. “I have a permanent lease on it.”

“That must cost a pretty penny.”

“Cheaper than an apartment.” She shrugged.

“Wait, do you live here?”

“During term time.” Shiori shrugged. “My parents are overseas and they gave me money to lease a place but this was cheaper and provided all I really needed.”

“Does it have heat or running water?”

“It has electricity and a fridge.” Shiori shrugged. “Plus there's a public bath across the road.”

“Are you even allowed to live here?”

“Officially, no. But it's an open secret with the staff. Now, stop worrying and sit.”

Begrudgingly I sat on the mattress. “Why even bring me here?”

“Well first of all, so you could tell Nerissa you've been here of course.” Shiori explained. “Secondly to help get you a little more experienced.”

I felt my hackles rise at the implication of that, turning fully to face her crawling towards me. My brain recalled her stealing my first kiss earlier and I went into fight or flight, not ready to yield any more to her. “What do you mean?” I asked, scooting backwards, but coming into contact with a bookcase that prevented me from going back any further.

“Tell me Fuwawa…” Shiori reared up, towering over me a little her hands reaching above me penning me in.

“I don't want t—”

“ My Little Sister Can’t Be This Horny or Oneesan Grew A Dick ?” Shiori asked, pulling back to reveal she'd grabbed two books from the shelves above me.

I blinked. “Huh?”

“I was trying to figure out which of my collection would most appeal to you, given your… proclivities.” Shiori explained. “I figured these would do for now, though I didn't know which would appeal to you more so I figured I’d let you choose.”

“Are those manga?” I asked dumbly.

“The finest porn manga money can buy, I assure you.” Shiori gave a proud grin and shook the books.

I blinked. “Why?”

“Can't have you seeming as virginal as you do, so some training. Read these and you'll at least have some idea what you're talking about.” Shiori explained, now forcing both books into my hands. “Whichever one you like.”

“W-wait!” I felt my face get hot. “I'm supposed to learn from these?!”

“You can touch yourself too. I don't mind.” Shiori shrugged. “They’re both really good, trust me, you might want to.”

“W-what, like… here?”

“Hey if you want to, I’m not gonna complain. But you can take them away too, I just want you to read one so in case Nerissa asks about if you’ve done it you can formulate a decent cover story.”

“Right…” I looked between the books and took the one with the slightly more appealing cover art, opening it up to a random page. Immediately, I was hit with a full page spread of the girl from the cover naked, on her back, and drenched. I slammed the book shut.

“Good stuff huh?” Shiori said, peeking over my shoulder. “I love this artist.”

“I guess…” I shrugged, a little perturbed by Shiori's closeness and what she was asking me to do. “Still, doesn't this all seem a little odd to you? Asking me to learn about… you know from a book?”

“Oh? I thought a goody two shoes student council member like you would love book learning. But if you want we could learn in a more practical way.” Her hands moved to my sides, running down them to my legs in a slow sensual motion unlike any way I'd ever been touched before. 

“Ahh.” I let out an involuntary noise as her hands touched the bare flesh of my thighs.

“A little touch starved are we?” Shiori pushed her fingers into my thighs harder and bright them back up, pulling my skirt back with them. “Anytime you want me to stop just say no, or stop, or tap out alright?”

“This is wrong…” I said, making no motion to stop her hands ascent or shift from her grasp.

“Is it? We're an eighteen year old alpha and omega aren't we? Isn't this the most natural thing of all? Isn't this exactly what our bodies yean for?”

“But we love other people…” I protested weakly as her fingers reached my panties.

“What's love got to do with it?” Shiori whispered, moving her left hand to my belly, teasing me with the closeness to my most sensitive spot. “But if you want I can stop, just give the word.”

“Don't.” I said the word before I even really thought about it.

“You are a naughty girl down there aren't you?” Shiori pushed her hand into my panties, fingers seemingly relishing pushing through my pubes. “Look at how wet you've gotten.”

My eyes dropped down to my blue and white striped panties which were almost black with slick at the bottom. I didn't even know my body could do that.

Shiori shifted behind me a little, urging me to fall into her. I let myself conform to the shape she wanted, feeling the softness of her chest and the hardness between her legs as I did so.

Her left hand pushed deeper, rubbing up against my clit as her right came up under my shirt and groped me. The two pronged attack hit me hard and I couldn't help but let out a little whine at the sensation, even before Shiori had really started to do anything.

“You are desperate aren't you little puppy?” Shiori’s voice was a growled whisper in my ear. “You like it when I play with these big tits of yours?”

I nodded, my voice lost a little as she roughly kneaded at my breasts which were unusually tender for some reason. 

“Or maybe it's down here you're reacting to more?” Shiori rubbed her middle finger around my clit. “Tell me, when you think of her do you touch yourself like this? Or-” Her hand slipped deeper, middle finger now easily slipping into my wet sex. “Like this?”

“Y-yeah.” I said weakly arching my back at the light penetration.

“Yes, what?” Shiori growled mockingly in my ear as she pressed a second finger inside me. “Answer the question more clearly. When you think about that sister of yours do you rub your clit or finger yourself?”

“Fuh-Finger myself.” I replied with a shaky voice.

“Do you imagine her cock pushing into you as you do?”

“Yes.”

Shiori chuckled. “So honest. I respect that. Still, you are a naughty girl aren't you?”

“I—”

Shiori picked up the speed of her fingers, knocking my response out of me. “And yet you have them all tricked. They think you're perfect little Fuwawa with the perfect attitude and the perfect body.”

I opened my mouth again to respond but no words came out, just hot heavy breaths.

“But I see through that. I see the real you. A lewd girl with a lewd body. You really are a fine omega, you know that?”

I don't know if it was her words or her hands that were making me react more but in combination I was turning to putty in her hands.

“Look at you, not even in heat but I bet if I sunk my fangs into you you'd beg for more.”

“N-no.” It took all I had but I shook my head.

Shiori laughed, pulling her hands back. “All the things I've said to you and that's the thing you find the energy to deny. I love that about you. Hold onto those convictions, Fuwawa, hold onto them as hard as you can.”

Immediately I missed the feeling of her touching me, as though I were naked and exposed without her hands on me. I turned back to look at her. “Why did you stop?”

“Because if we'd gone any longer it only would have ended with my knot inside you.” Shiori gave a wry smile. “And given how badly you took me stealing your first kiss, I figured it'd be rude for me to not leave you some first to share with your beloved.”

She was messing with me like usual. I resisted the urge to tell her I'd rather it had been the other way around, what bits of me were not lost to horniness winning that battle by some miracle. 

“But hey if you really have to finish, there's always the book I lent you. And like I said, you're very welcome to read them here.”

I set my jaw, took a deep breath and stuffed the book in question into my bag. “Don’t see why I should be giving you the satisfaction.” I huffed, zipping it closed, slinging it over my shoulder and standing.

“Ooh, so the puppy has some teeth after all.” Shiori maintained her cocky grin. “Good, we’re going to need them.”

It was aggravating, how she always acted like she was on top of things, the cool alpha always in control. “You better know what you’re doing.”

“See you tomorrow, lover .”

It wasn't long after leaving that I regretted not asking Shiori for directions to the station from her ‘apartment’. The maze of unfamiliar alleys and back roads it was located in caused me to get turned around and lost almost immediately and by the time I'd found my way out and onto familiar streets the sun had long since set.

I wondered, as I sat on the train, if Mococo was home yet, how her evening with Nerissa had gone. I was sure at least that Nerissa wouldn't have been so quick to make a move as Shiori was. If what Shiori did could be considered a move.

The woman confused me. I had agreed to play along with her plans and yet she had three times today deceived me unnecessarily. It was almost as if she cared more about throwing me for a loop than getting Nerissa back.

Could it be she’d deceived me about her very reason for her scheme? It was definitely seeming possible, yet, what else could she want? If I was her real target there was surely no need for subterfuge. 

Besides, she'd had reasons for doing what she did, strange as they were. For all I know she was trying her best at her plan. It wasn't like I had any better idea how to break two people up. 

The question lingered over me almost all the way home. It was only as I passed our local park and heard quiet, familiar voices I stopped.

Peeking inside the park I saw them, Mococo and Nerissa, sitting on the pair of swings we'd played on as kids.

It occured to me it was the first time I'd seen Mococo today, her having left for practice early as always. She looked cuter than ever, seemingly having put a little makeup on after practice for her date. Some of mine no doubt.

I didn't begrudge her it. I'd told her repeatedly she was free to use it. Still, knowing she'd put it on just for someone else… 

My heart hurt as I watched them chuckling, Nerissa sitting in the place I'd always dreamt I would be.

I sighed, turning away from them and sinking to the ground. 

Maybe, I thought, I should just let them be happy. Give this business with Shiori a rest. Learn to live with them. Nerissa was fine. Mococo was happy. It wasn't like the world would accept my love, even on the off chance Mococo did.

I opened my phone and navigated to my messages with Shiori. With a few words I could end the farce. I could return everything to normal.

I could.

But I didn't.

Shiori, for all her faults, for her weirdness, for her lack of respect for boundaries, had seen me. Seen me like nobody ever had. Seen past the mask to the monster lingering below. 

No. I would not sit idle. I would take action no matter how futile. I just wasn't going to rely on Shiori to tell me how I was going to fight any longer.

I pocketed my phone and began to walk home to rest and lick my wounds. The first day of battle was over. But the war had only just begun.

It had been a while since I last woke up as early as I did the next morning. But as I turned my alarm off and pulled myself out of bed, sleep was the last thing on my mind.

Nerissa had taken my two times I had Mococo to myself every day from me but I was about to change that. 

I was already done with the bento boxes by the time Mococo came downstairs that morning much to her immediate and obvious surprise.

“Fuwawa-chan?” She blinked groggily as she stumbled into the kitchen. “What are you doing up this early?”

“Good morning Moco-chan!” I beamed, turning over the omelette I was making on the pan. “I have a lot of work to do preparing for the elections so I'm going in early to handle paperwork.”

“You've never had to go in early before.”

“It's the busiest time for the secretary.” I said, half lying. “Duties for the president are wrapping up, but I still have a lot to do and it's either come in early, stay late or sacrifice my lunch break to get it all done.”

“I see.” Mococo smiled. “You really are a hard worker sis. Nerissa said you work the hardest of anyone on the council.”

I tried my best to ignore the Nerissa comment and fussed over the omelette a little more. “Plus, this way we can go in together, it's been a while since that was the case.”

“Yeah… Ever since I joined the team. Man it's going to be weird after nationals. I'm going to have to retire and focus on final exams.”

“You should already be studying, you know.” I chided her lovingly. 

“I am studying.” Mococo laughed. “An athletic scholarship is the only way I'll get to go to the same university as you.”

“You still need the grades you know.”

“I know. But I have you and Nerissa to help me study.”

“Nerissa huh?” I raised an eyebrow, turning off the burner. “I heard you two had quite the day yesterday.”

Mococo blushed. “Sorry I didn't tell you in person, I wanted to but…”

“It's fine Moco-chan.” I put on my best smile and cut the omelette in half with my spatula. “Besides I was a bit busy myself.”

“Right! You and Shiori?! What's with that?”

“Is it really that surprising?” I ask, plating up the omelette onto two plates, handing one to Mococo.

“Of course it is! Shiori is like, a bad girl, you know? She got kicked out of her club, she's always getting in trouble for breaking dress code, I mean, Nerissa told me she lives in a storage unit.”

“I know, I've seen it.” I shrugged, sitting down at the table to eat.

“WHA?!” Mococo’s eyes looked fit to pop out of her head. “When?”

“Yesterday. She told me she had something to show me and took me there. Though I didn't know that was where I was going at the time. She even gave me a key.”

“Why didn't you tell me about this?”

“Hey, you're the one who came home late last night, I was already coming out of the bath by the time you came in, made it hard to tell you anything.”

“Ah.” Mococo let out a nervous chuckle. “I guess you got me there.”

“Maybe I should be asking what you two were doing that had you out so long.” I smiled.

“She took me out to get crepes.” Mococo smiled shyly. “But it was really packed for valentine's day so instead of sticking around we just walked and talked.”

“You know it's usually the Alpha who takes the Omega on dates.”

Mococo’s smile faded a bit. “I know…”

“I know that look.” I put a hand on hers. “What's on your mind?”

“You ever feel, like, I don't know… Wrong?”

“All the time.” I nod. “You're going to have to be more specific.”

Mococo’s face brightened a little. “Like, that you're not really an Omega?”

“Sure, a bit I guess.” I shrugged. “But the heat cycles would beg to differ. You feel that way about being an alpha?”

“Yeah.” Mococo nodded. “I don't know… I know I am one, like you said there's enough evidence, I just…”

“You don't vibe with what it means to be an alpha?”

“A little bit.” Mococo nodded. “Or more like, what's expected of me as an Alpha I guess.”

“Like arranging dates?”

“Not just that.”

I nod. “I get that. I mean, we both thought we were betas way back when, right?”

“Is it bad I wish that we were right?”

I squeezed her hand. “Not at all. I think the same thing all the time.”

“You feel like me?”

I nodded. “Being an Omega… I don't know. It's hard. I wouldn't pick it.”

Mococo lifted her hand and locked her fingers with mine, giving me a bright smile. “We really are so alike aren't we? We even got girlfriends on the same day.”

“Even when they pull us apart they can't stop the fact we're twins.” I smiled back. “Now hurry up and finish your eggs, if we're quick we can grab donuts on the way to school.”

“Oh man, the coach would kill me.” Mococo laughed. “But to celebrate with my sister, why not?”

The morning had by all accounts been a huge success. It had been a while since I'd gotten to spend such quality time with Mococo and as we parted ways at the school gates I felt on top of the world.

Of course the flip side was that now I was in school a full hour before classes started with really not that much to do but paperwork. Dull dull paperwork. It was times like these I remembered the only reason council work was ever enjoyable was because of the people I was doing it with. 

Instead my attention drifted to the window where I could see the soccer team's morning practice out on the playing field. It was easy to spot Mococo out there among them, warming up with a jog, clearly racing against her friend and rival, Gigi.

I'd heard a lot about the girl over the years. She and Mococo had gone from competing for starting positions and to the last two third years on the team as they headed into their final tournament. Well, them and Raora, though her job seemed to be mostly just handing out water to people.

In truth I had been jealous of Raora for some time. As an omega, making the soccer team myself would have been all but impossible but as their manager I could have shared in all of Mococo's triumphs, been with her more often… 

However, like Nerissa it was hard to stay mad at her once I got to know her better when we ended up in the same class in second year. She was just too likeable. Besides, the amount of attention she got from other alpha's due to her position was definitely not something I was interested in. At least her well known relationship to the student council president kept most people from doing anything, I would have no such shield.

Unless of course Mococo stepped in to protect me… 

I thought about it for a bit, being hit on by some alpha when Mococo swoops in to pull me away to safety. It was an appealing idea but given the absolutely nothing she'd done to intercede between Shiori and I, I had to say it didn't seem very realistic.

With a sigh I pulled my eyes away from the field and tried to focus back on my work, though it was hopeless. Figuring I might as well try and use the time productively for studying I brought my bag up from my desk to pull out my maths textbook, only to grab a hold of an entirely different book.

Staring up at me was My Little Sister Can't Be This Horny , the eroge Shiori had all but forced me to borrow the night prior. On its cover a girl with blonde hair and big blue eyes looked at me, a red flush across her face, a dribble of slick running down her leg from blue and white striped panties that were a dead match for the ones I'd been wearing yesterday. I'd not dared to take it out of my bag at home, lest Mococo somehow find it but as I held it in the student council room I felt even more wrong.

Still… Nobody was around and I was just complaining about having nothing to do… I gave a conspiratorial look around and opened the book on my lap so that anyone entering wouldn't see the cover.

I had to admit that the art was immediately appealing, not only was the titular imotou lovingly rendered but her college age alpha oneesan who acted as the pov was too. Even more surprising than that, the actual characters behind the art began to grow on me as well. 

They were step sisters living together while their parents were abroad. The younger sister, Amy, was a high school senior though already eighteen due to having missed half a year when transferring to live in Japan from England. The elder, Misato, was a serious alpha overachiever a year her senior who resented having someone who was basically a stranger live with her during her time in college. That is until she discovers that the two of them share an appreciation for otaku culture, coming at it from different sides, one as a native the other as a gaijin.

It was actually quite a well written and enthralling slice of life story. Or it would have been. Had it not been for the fact it was an ecchi. Much of Amy’s fascination with Japanese culture, it turns out, is with the adult entertainment side of things and, now a legal adult living away from her parents, she chooses to engage in them quite liberally. This formed the basis of much of the plot, with each of these incidents inevitably ending with Misato getting a eye full of her stepsisters tits, ass or pussy, popping a boner and the two fucking to resolve all plot tension.

Before I knew it I hit the end of the first volume and immediately knew I needed more.

“I told you you'd like it.” Shiori's voice startled me, coming from right behind my ear, and I fumbled the book, dropping it to the ground.

“WHA- W-WHEN DID YOU COME IN HERE?” I yelled, picking up the book and stuffing it in my bag.

“About five minutes ago.” The girl smiled, coming around and dropping casually into my lap. “You seemed engrossed in the book and I wanted to be here to give you and out in case someone less understanding entered the room.”

I felt my cheeks burn with embarrassment. 

“No need to thank me. I can lend you the next volume tonight if you want.”

“I…” I hesitated, looking away. “I would like that.”

“You just keep a hold of that volume until the end of the day just in case. I'll meet you after club's over in our usual spot.”

“We hardly have a us—” I began to protest though Shiori swiftly put a finger to my lips as the doors to the room opened.

“O-oh.” Nerissa said, clearly shocked at seeing the two of us in the position we were in. “Am I interrupting?”

“Of course not,” Shiori beamed back at her. “I simply didn't want to intrude by sitting on another member of the council's seats.”

“I'm sure nobody would have minded.”

“I know you would have, if only just a little.”

Nerissa averted her eyes, clearly a little uncomfortable that Shiori had hit the nail on the head.

“I am sorry that we parted on such poor terms, Rissa.” Shiori said, a sincerity to her voice I wasn't aware she was capable of. “But we should try to get along better now, I mean after all, we could end up being family.”

I did my best to hide my own distaste for that outcome, though I feel as though I needn't have, Nerissa just nodding, eyes still averted. “Yeah, you're right.”

“How about the three of us and Mococo start having lunch together?” Shiori suggested, pressing her advantage. “It would be a shame for our differences to drive a wedge between such close knit sisters.”

“Urgh, I hate it when you're right.” Nerissa sighed. “Okay, fine. I'll let Mococo know.”

All through the morning I had been dreading the lunch plans that had been made. I didn't know what exactly Shiori was up to, but I didn't for a second doubt it was something. The issue was I couldn't tell what and that only made me more nervous. 

Still, I could hardly not attend, so unsure as I was, Nerissa and I made our way to our arranged meeting spot out in the courtyard.

Mococo and Shiori were already waiting for us at the picnic table when we arrived, the alpha classrooms being closer than ours.

“Hey babe!” Shiori grinned at me as I approached patting the seat next to her.

“Hi!” I smiled back as convingly as I could sitting down next to her as Nerissa took the seat opposite.

Before the other two could so much as greet each other, Shiori leant over to me and kissed me on the cheek. “I missed you this morning. It's so fucked up we have to take classes in different buildings.”

“Right?!” Mococo agreed eagerly. “We have shared clubs and stuff so why do classes have to be separate?”

“Well, I know if I was in class with you I'd never be able to concentrate personally.” Nerissa said to Mococo putting on her smoothest voice. 

I felt like I wanted to barf just hearing it, yet Mococo blushed.

That only made me want to barf more. 

“Well maybe that wouldn't be the worst thing. Might lower the bar for the rest of us a little.” Shiori laughed.

“You already score better than me in tests why would you care?” Nerissa shot back.

“Just looking out for the little people.” Shiori shrugged. “No offence Mococo.”

“It's fine.” Mococo sighed. “I can't help it if you're all geniuses.”

“If it helps I'm sure you'd run rings around us all in any sport.” I offered putting out a hand to Mococo to reassure her on instinct more than anything.

“Really?” Shiori raised an eyebrow, “I think Nerissa might have an edge on her in Basketball or Volleyball.”

“Calling me short?!” Mococo pouted kicking at Shiori under the table.

“I mean, you are, aren't you?” Shiori shrugged, unbothered by the violence being directed at her.

“We're basically the same height!”

“Yes and I'm sure Nerissa would wipe the floor with me at those sports too.”

“Probably more than just them.” Nerissa scoffed. “You're about the least athletic alpha I've ever met.”

“Wow,” Shiori said flatly, “will the slander never cease, perhaps I might not be the fastest around but I think you'll find when it comes to stamina…”

“Don't start fighting you two!” Mococo pouted.

“Of course.” Shiori smirked, backing off. “We're all friends here aren't we?”

Nerissa looked a little unsure, but after a glance at me and Mococo relented with a sigh. “Yeah. Of course.”

Honestly, I was having trouble getting a word in with the three of them, but I didn't care too much. Pretending to be Shiori's partner was exhausting and I'd much rather slip into the background and just eat my food.

Shiori had different plans of course. The moment I pulled my lunch box out and opened it up she was on me.

“Ohh that looks good!” She remarked, leaning into my personal space. “Did you make that?”

“She made us both bentos this morning!” Mococo said proudly, opening her matching box and revealing its identical contents. “Her cooking is really good so it's always a treat.”

“You made bento for another alpha? I'm jealous~” Shiori teased.

“Do you want mine?” Mococo asked, offering the box out to Shiori. “We can trade!”

I clenched my jaw trying to hide how upset I was by my beloved sister so casually trading away the lunch I worked hard to make for her.

“Well I'd love to, but all I have to offer in return are these sandwiches i made and this bag of black liquorice.” Shiori sighed.

“WAIT! DID YOU SAY BLACK LIQUORICE?” Mococo’s eyes all but popped out of her head at the mention of the confection she'd always loved for reasons beyond my own comprehension.

“You like it too?” Shiori raised an eyebrow. “I know the other side of our table here aren't fans of it. Maybe it's an alpha thing.”

“I have to admit I’ve never met an omega who likes that stuff.” Nerissa nodded. “Do you like it Fuwawa?”

“It's fine.” I shrugged. “Generally I just let Moco-chan have it though.”

“What a great sister.” Shiori said, miming wiping a tear from her eye before turning back to Mococo. “So is the trade acceptable then?”

“Heck yeah!”

I sighed. “That meal was supposed to be properly nutritionally balanced for your training, you know.”

“Relax, it's just some sweets,” Mococo shrugged off my concern, already tossing the bitter candy in her mouth, the sandwiches sitting ignored, “besides you bought me donuts earlier, remember? We can call it a cheat day.”

Nerissa laughed. “I'm not sure that's how that works, Darling.”

I had to admit, despite everything I was actually a little excited to go to Shiori's after school and as the student council wrapped up I found myself hurrying to our meeting spot.

“Love the enthusiasm.” Shiori grinned as I approached. “Nerissa see you running off to see me?”

“Probably.” I shrugged, pulling my outdoors shoes from my locker and dropping them to the ground. “Can't we take a break from Nerissa talk for a bit though?”

Shiori raised an eyebrow at me. “You do remember what—”

“Of course I remember, it's just, I've had a whole day of her. I saw her at lunch, at my club, in class, even before school started I had to hear Mococo gush about her.” I sighed, pulling my indoor shoes off.

Shiori giggled a little at my complaining and put a hand on my head ruffling my hair a little. “Yes, yes, you've been a very brave little puppy.”

I rolled my eyes. “You might understand if you saw Mococo nearly as much as I saw Nerissa, but you guys aren't even in the same class.”

“I'm not actually totally without empathy you know. I do understand the work you're putting in.” Shiori pulled her hand back, her tone oddly sincere sounding, at least for her.

“I… Well okay then.” I nodded slipping into my outdoor shoes. “Shall we get going?”

“Of course. Though I need to pop by the convenience store on the way if that's alright.”

“Yeah that's fine.” I shrugged. “I might pick up something while I'm there too.”

With that we headed off. This time I thought I'd keep better track of my directions, though of course as we diverted off track to go to the seven eleven we were once again on unfamiliar roads.

Still I took the time to take in my location as I idly browsed the shelves, picking up a rice ball and a bottle of green tea to snack on when I headed home.

Shiori on the other hand was loading up a little and already at the register by the time I'd finished wandering about the store.

“Oh hand those over I'll get them.” Shiori said, holding a hand out as the cashier checked her out.

“You sure?”

“Consider it a thank you for your continued help.” She shrugged.

I gave her a look, but handed the goods over anyway. “It's not like I'm helping out of the goodness of my heart or anything.” I clarified as we exited the store, one of her bags of groceries in hand.

“Oh yes, you're a horrible depraved girl.” Shiori snorted out a laugh. “Don't worry I won't think too highly of you if that's your worry.”

“I feel like you never take me seriously.”

“Oh yeah?”

“Yeah, exactly like that.”

“Relax, I'm like this with everyone I like.”

“I'd hate to be one of your enemies.”

Shiori smirked. “Anyone would.”

Coming into Shiori's space I set down the bag of groceries I'd been carrying for her and wandered over to the shelf I remembered her pulling the books from the night prior. Pulling the book she lent me out of my bag I located it's spot on the shelf and slotted it back into place, taking the second volume in its place and noting how many further volumes there were. 

“Fourteen?!” I found myself saying in shock, I liked the book but how on earth did the author have fourteen volumes of content for such a simple premise.

“She's prolific.” Shiori answered my unspoken question from across the room, stuffing her shopping into the minifridge. “I won't spoil anything but the story goes places.”

“I suppose to fill 14 volumes it has to. Is it complete?”

“You're in luck, she finished it just last year, I can lend you her new stuff when you're done, it's a pretty similar premise.”

“I guess that makes sense. It didn't seem like something you would write fourteen volumes of if you weren't into it.”

“Right?” Shiori laughed, closing the fridge door. “Then again I've written hundred thousand word stories on stuff I'm only sorta into so who knows?”

“You write?” I asked before thinking.

Shiori gave me a searching look. “What do you think the underground literature club does?”

“Uh… Break the rules a lot?” I shrugged. “I don't know the only thing I hear about you is that you cause trouble.”

Shiori laughed. “We write erotica Fuwawa. But the real literature club refuses to see it as art or whatever.” 

“Isn't the fact you're a school club the more pressing issue?”

Shiori rolled her eyes. “You sound just like Nerissa. It's not like we're shoving it in the face of the new first years or anything, we just believe we should be free to write what we want. Is that so wrong?”

“I, uh, I guess not.” I backed down, not particularly interested in getting an alpha riled up in her home. “Sorry.”

“No. I am.” Shiori sighed, pinching the bridge of her nose. “I just get a lot of grief over it from other council members but I shouldn't just assume you'd be like them. Sorry.”

“It's okay. Don't worry about it, I'm just gonna head off.”

“Already?”

“I just swung by to get the book.”

“Yeah but everyone saw us leave together, if you leave right away it's not going to look good for our credibility as a real couple.”

“Urghhhh.” I groaned. Fake dating was such a pain. “Fine, I'll stay a bit longer but no more than an hour.”

“Well gee thanks.” Shiori deadpanned. “Am I really such a hassle to be around?”

“No you're fine… I was just excited to get home and start reading.”

Shiori grinned. “You're hooked huh? I knew you would be. Well you can always read here.”

“It's… Not exactly the same.” I said, trying my best to hide that the real reason I wanted to read it at home was so I could touch myself to it.

“Ohhhhh… I see.” The alpha's grin grew devilish as she walked up to me. “Well I thought I made it quite clear you're welcome to get off in here if you want.”

I felt my face turn red. “It'd be awkward with you here…”

Shiori put a hand to my cheek. “Well then, we could always do an activity that involves two. I bet you're still pent up from reading the first volume this morning right?”

“I…” I spluttered for words. “We're not…”

“Yes we are.” Shiori said, getting closer to me. “You think they haven't done it already?”

I felt myself freeze. “We don't know th—”

“Oh I know Nerissa,” Shiori shook her head, “that girl is hornier than the band club. You saw yourself didn't you, they kissed way before they went public.”

“It was only a kiss.”

“It wasn't a kiss was it? It was a couple more than that from what I heard. It might not have even been their first.”

She was trying to push my buttons and it was working.

Shiori closed in on me, speaking directly into my ear now. “You don't even have to look at me as we do it if you like.”

“That's… Still…” The smell of her made my head swim, the faint musk below the perfume, the intoxicating pheromones.

“Don't even think of it as sex, just, feeling good. You wanna feel good don't you? You want to let your brain escape to a place where all it can think about is pleasure, right?”

“I...” My head swam with a hundred conflicting thoughts. 

Shiori ran her hand slowly down from my midriff towards my crotch. “Then let's get this skirt off and have some fun.”

This was wrong. This was right. This wasn't what I wanted. This was exactly what I needed. It was all too much too fast. Before I knew what I was doing I was pushing her away with everything I had.

I barely moved her at all, a stark reminder of just how much stronger she was than me as an alpha even if we were about the same height.

Still, she got the picture, pulling her hands away and stepping back. “Sorry, I got the wrong idea I guess.”

“I…” My brain was still spinning. “Sorry I just… I'm…”

Even as I started down into the ground I could feel her looking at me, measuring me up. 

“I don't know what I want yet I guess.” I admitted, looking her in the eye.

“Suit yourself.” She shrugged. “I'm gonna go to the bathhouse across the street, make yourself at home and leave when you like.”

With that she grabbed a toiletries bag and walked out the room before I could even find it in myself to say anything more. 

She was upset. That much was clear, but I couldn't fully figure out why. Our relationship was fake. A means to an end thats all. She didn't actually like me.

Right?

I paused to ponder it. On the one hand, I supposed it would make sense with her actions. She'd always insisted we be as close to real girlfriends as possible and our shared goal did feel almost impossible. Maybe she hoped I'd catch feelings for her along the way and give up on Mococo, settling for her instead.

Still. That wasn't a perfect explanation. I'd barely even spoken to her before our chance meeting two weeks ago. Plus I certainly wasn't the most attractive omega around, sure I had big tits but I was chubby and hardly the standard of beauty, especially not for someone who was into people like Nerissa. 

Maybe she was just pent up and willing to fuck anyone in sight. There was really no way to know.

The one thing I did know was that standing in her unit right now was making me very uncomfortable. I made myself scarce quickly, figuring that even if Mococo did pick up on me being back relatively quickly she'd probably not bring it up anyway.

Though as I returned to a home with no Mococo in sight I realised I needn't have worried at all.

“Mococo is feeling a bit under the weather.” Mom explained at dinner asking me to take a bowl of porridge up to her room once I was done.

I agreed and before too long I was knocking on the door to my sister's bedroom.

“Come in.” Mococo's voice came through the door.

“Sorry for the intrusion.” I said entering. “Mom made you some rice porridge because she said you're feeling ba—” I paused as a familiar scent washed over me, Mococo's pheromones, only slight but definitely there. “You're going into rut?”

“Huh?” Mococo said from bed, where she was lying under covers with a wet flannel across her forehead. “No that's not supposed to start for at least a week. Mom just said it's a fever.”

“Well Mom’s a beta who can't smell pheromones.” I said, walking over to her and putting a hand to her forehead. “Your temperature isn't fever high.”

Mococo looked troubled. “I had such a regular rhythm though.”

“Maybe there's been a shift due to the amount of time you're spending with an omega now?”

“Nerissa is on blockers though, and I've never felt any adverse effects from being with you.”

“Well, we have been seeing less of each other recently. Maybe my presence was slowing your heats somehow?” I suggested.

“Maybe?” Mococo fell back into her pillows with a sigh. “This sucks.”

“At least you know it'll pass.” I said, sitting on her bed, placing the bowl on her side table. “In the meantime, you think a whiff of your big sister's pheromones will help?”

“You don't have to.” Mococo shook her head. “You saw how jealous Shiori got over not getting your bento earlier, imagine what she'd be like if she found out about this.”

“Hey now, you were my sister a long time before she was my anything. I want to help my little sis, that comes before anything else, even Shiori.”

Mococo smiled at me. “Well I won't tell Shiori if you don't tell Nerissa.”

“Deal.” I laughed, pulling off my shirt. “You want to eat your porridge first while it's hot?”

Mococo gave the bowl a dismissive look. “Not really.”

“How about I make you some ham sandwiches after instead, I know you crave protein in your ruts.” I asked, moving to lie down next to Mococo on the bed as she took her own 

Mococo smiled, pulling her own top off before inching closer. “That would be great, thanks Fuwawa, you always take such good care of me.”

“Of course, I'm always here for you.” I wrapped my arms around her and pulled her closer. “No matter what, I'm in your corner.”

Mococo shifted to envelop me as much as she could given her skinnier frame. Her tight muscular body pressed up against my slightly chubby one and her head rested on the nape of my neck, breathing in my pheromones straight from the source.

It was a position we'd adopted many times before and it never failed to get me hot and bothered. Even though l was not in heat and not pressing my nose up to any of Mococo's scenting areas her pheromones were overpowering. Add to that the feeling of her arms around me and of her hard dick pressing into my stomach… Bliss and torture in equal amounts.

Her lips kissed at my neck, desperate to lap up all the scent I had to offer. Her teeth gently scraped my skin, being more careful not to leave a mark than they had been on previous occasions. Her hips ground against me letting out her sexual frustration against the soft folds of my belly.

I yearned for her. I wanted her dick to burst through the clothes and underwear separating us and ravage my ever wettening sex. I wanted her to sink her teeth into my neck and claim me for her own. I wanted to be hers. I already was, if only she would just say the word. 

Mococo’s hips pounded at me desperately, her knot inflating in the space between us, there wasn't long left. I pulled her in close, putting one hand to her soft blonde locks, the other to her firm butt. Her arms pulled me into her with all they had, mouth gasping for air against my skin as she came, a flood of hot semen spilling out between us. 

For a moment we just lay there, Mococo’s body heaving for breath, mine horny beyond belief. It was a wonder these ‘relief sessions' didn't put me into an early heat.

When we did pull away I took a second to look at my cum covered torso, a thick line of it running from my ribcage down to my belly button. Mococo always came a lot but this must have been a record even for her.

“I—,” Mococo panted, red in the face, one arm on her sweat drenched forehead, “Have some tissues… Somewhere.”

“I’ll get them.” I chuckled, pulling myself up out of bed and taking the opportunity with my front away from her to wipe off a bit of her cum with a finger and put it in my mouth, savoring the salty taste I'd come to associate with her. 

Honestly it pained me a little to wipe the rest of it away, but Mococo had previously said she wasn't so comfortable with me eating her cum so I was limited to just sneaking tastes when she wasn't looking.

Once I'd given myself a quick wipe down, I passed the box to Mococo. “I'm going to hop in the bath, I'll grab your sandwiches after, if you're hungry in the meantime the porridge is right there.”

“Thanks Fuwawa.” Mococo smiled at me as I pulled my shirt back on. “You're the best.”

“Anytime little sis.” I smiled back, exiting the room and dashing across the hall to the bathroom, entering and locking it behind me.

I spent most of the rest of that night touching myself. Between the erotic manga, Shiori's teasing touches and helping out Mococo my brain was a horny mess. 

In the shower I spent more time blasting my clit with the head than cleaning off what cum remained and in the bath I found my hands reaching to my soft spots to work out my sexual frustration.

But it wasn't enough.

After bringing Mococo the sandwich I promised her I would retire to my room for the night, pulling out the manga I’d borrowed from Shiori and the small egg vibrator I kept hidden in my desk.

Not wanting the vibrator to be heard I placed it on my bed and laid flat atop it belly first, allowing it to lie right between my legs, touching my clit. Then I pulled my duvet over myself to further muffle the noise before turning it onto a low setting and opening the book.

Quickly I found myself getting lost in the world of Misato and Amy, who's relationship was starting to develop into more than just step sisters who fucked every other chapter and into a real couple. Going on dates, sleeping in the same bed, helping each other wash… Sure most of these were inevitably setups for sex but at the same time I could feel the feelings of the characters shining through.

It helped how easily I was able to project myself onto Misato. She might have been the alpha sister but as the older, quieter, more studious one, I connected with her much more than boisterous Amy.

Honestly it was a little confusing, as I touched myself to the sex scenes I didn't know if I wanted to be Misato or be fucked by her. I imagined grinding a cock of my own against the bed as she took me from behind. Trying to simulate it I pushed my fingers into my pussy as deep as they could go and ground my clit against the vibrator but it was never enough. I was going crazy. I needed a dick, one way or another.

And as much as I hated it, I knew how to get one. I pulled out my phone and sent a text to Shiori Novella.

“I gotta say, this is quite the change of heart.” Shiori smiled at me from her perch on my desk as I entered the student council room the next morning. “Less than a day ago you were pushing me away.”

“Things have changed.”

“Have things changed?” Shiori raised an eyebrow. “Or have existing feelings gotten more intense?”

“That's still a change.” I sighed. “If you want to gloat about how you were right and read me so well go ahead.”

Shiori laughed. “I'm so glad you're coming to understand me. But I can't really boast, after all I clearly pulled the trigger a little too soon, right?”

“Sure, or you knew it would lodge the idea that you were actually down for sex in my head and you'd get the pleasure of looking down on me as I came to you.”

“Oh my, you do seem to have quite the imagination on you don't you. Well, you can believe what you like, I guess. As much fun as this is I didn't come here to verbally wrestle with you.” Shiori’s smirk remained as solid as ever as she hopped off the table and strode towards me, her pheromones getting more intense with every step. “How exactly did you want to do this? I know a couple private areas we're unlikely to be disturbed…”

“No.” I stood my ground as best I could against her. “If I'm letting you take my virginity, we're doing it my way on my time.”

“You realise you're the desperate one right?” Shiori raised an eyebrow, her tone making clear she found what I was doing amusing rather than persuasive.

I fought back against the part of me that wanted to roll over and let her do what she wanted, even as it's voice got louder and louder. “It's my first time. I'm going to have it be special, if you won't make it so, I'll find someone else who will.”

“Alright I'll bite, what did you have in mind?”

“There's an onsen hotel about an hour away on the train, we stay a night this weekend. I can tell my family I'm staying with a friend. I'll pay for it all, I have plenty of money saved.”

“I have to say, I was expecting a much harder bargain than that.” Shiori laughed. “Sure, on three little conditions. One, you let me take pictures. Two you let me tell people it was my idea. Three, I pay.”

I narrowed my eyes. “I don't need your charity.”

“Consider it a point of alpha pride. I won't hold it over you as a debt.”

“At least let me pay for half.”

“I pay, or you can find someone else to take.”

“Fine.” I relented, I'd already hurt my pride coming to her, what was a little more. 

“Great.” Shiori grinned. “Now, tell me all about this little vacation of ours.”

When I got home that evening, my first stop was Mococo’s room. “How are you feeling?” I asked, sitting by her bedside.

“Horny as hell.” Mococo groaned. “It's never been this bad… It won't go down at all.”

“Need my assistance again?” I asked, wiping a lock of hair from her sweaty face. 

“Is it okay?”

“Of course! We have to get you ready to go for practice on Monday right? Everyone from your club was asking about you today.” I said, pulling off my shirt.

“Was Nerissa?”

“Of course she was. Speaking of her, another reason you need to get well again is to save me from how awkward lunch gets with just her and Shiori.” 

“I bet. It still boggles my mind every time when I think about how you two are together now.”

“Yeah?” I ask, doing my best to sound surprised as I set my uniform aside.

“You're just an unlikely couple.”

“Opposites attract I guess?” I shrugged as I got into her bed.

“I guess.”

“Well try not to be too shocked but she actually invited me out this weekend to stay at an onsen overnight.”

Mococo gasped. “That's bold of her, what did you say?”

“I'm not going to pass up a free onsen trip.”

“But…” Mococo trailed off.

“But?”

“Well...” Mococo shifted a little uncomfortably. “You know… When an alpha asks an omega on a trip like that… They generally have certain… Expectations.”

“I know.” I nodded.

Mococo was quiet.

“Does it, bother you?”

“I… I mean, yeah, a little. Sorry this is weird right?”

“What? No, you're my sister, I want to hear what you think.”

“I just… I've been trying to keep an open mind about you two but… Well I've never completely trusted her intentions and there's something about knowing she's going to take your virginity…”

“Rubs you the wrong way?”

“I just want to make sure she isn't taking advantage of you… Maybe I'm feeling overprotective because of the rut…”

“Honestly I'm a little nervous about it too. I like Shiori but, when I think about losing my virginity… It’s scary.”

“Then why are you doing it?”

“You're not the only one with physical needs.” I smiled, pressing my leg up to her crotch teasingly.

“Ah…”

“I wish I felt as safe with her as I do with you.”

Mococo averted her eyes. “Maybe you shouldn't feel so safe with me.”

“What do you mean?”

“I…” Mococo took a deep breath. “Last night when you helped me out, I wanted to…” She left the words unspoken. Afraid of them. But I knew what she was saying.

“You wanted to fuck me.”

Her cheeks, already red, seemed to turn a deep shade of scarlet. “I'm sorry. I know I shouldn't—”

I put a finger to her lips. “It's okay. It's only natural in rut with an omega in front of you you'd want to do the thing your body was designed for. And… Maybe it wouldn't be so bad, I know I'd feel a lot better with you taking my virginity than Shiori.”

“But we're sisters.” She hissed the words at me, but high on her pheromones I wouldn't be deterred.

“Exactly.” I pressed. “We’re sisters, we can trust each other. Nobody ever has to know. Our little secret.”

“Our secret?” She looked at me with weak eyes. 

“Nobody ever has to know.”

“Okay.”

I smiled and put a hand to her face. “Just let your big sister handle everything.” She nodded into my hand as I pulled back the covers, revealing her sweat drenched body and raging erection. An erection she had from the thought of putting it into me. I couldn't help but beam at the thought of it. 

“Just, go gentle, it's my first time too.”

I froze for a split second as the reveal hit me. Of course it was. Mococo wouldn't put out so easily, why I'd put stock in Shiori's theories at all was suddenly beyond me.

Still, as I looked down at the place they'd brought me to I could hardly complain.

“Of course.” I smiled, pulling my panties down to my knees and then back off my calves, letting my own soaking sex loose in front of her, noticing how her eyes seemed to fixate on it. “You like the look of that?”

Mococo averted her eyes, but I reached over to pull her face back to look at me.

“Don't look away. Right now we're lovers, look all you want, sear the memory of your first time into your heart.”

She nodded dumbly in my hand, taking me all in as I unclasped my bra and straddled her legs, grabbing her engorged cock and moving to position myself over it.

“Wait, condom we need a condom.” Mococo’s eyes went wide, the thought slipping both our horny pheromone riddled brains. 

“Right.” I smiled weakly, though in truth even if I had remember I'd have preferred to go without, the concept of there being anything between me and her when I'd come so far being almost more that I could take.

After fumbling around in the drawer of her bedside table for a moment, Mococo produced a box of condoms that she threw to me. A full box, I noted as I opened it, and tore one open. 

Pinching the end with my right hand I rolled the protection down her waiting cock with the forefingers of my left, trying my best not to catch any of the fuzzy blind bush at its base inside. “How's that feel?”

“A little bit tight.”

“That's how they stay on I think.” I smiled apologetically, once more positioning myself over it. “Ready?”

“Yeah.” Mococo nodded eagerly. No doubt she'd been holding herself back.

I took a deep breath and began to squat, feeling Mococo's hard cock pressing up against me right away. Put a hand down to help ease it in but I needn't have bothered, my lubricated nether regions guiding her inside far better than my hand could.

Instead I focused on the slightly painful feeling and dropped slowly further and further until my hips were flush with hers. With each inch my breathing got hotter and heavier and my brain struggled more and more to reckon with what was actually happening. 

Mococo was inside me, just as I'd imagined whenever I would finger myself. I looked at her, eyes wide, face red. I looked down at where our bodies met, a slight trickle of blood gliding off her pale skin from where our bodies met. My hymen. She'd broken my hymen.

“Should I move?” Her voice broke me out of my head. I looked back up at her.

“No I'll—” I began to pull my hips up but did it a bit too fast for my virginal body. “AHN~” I put my hand to my mouth to quiet myself, not knowing if our parents were home yet or not.

“You okay?”

I nodded.

“I'm going to move.” Mococo stated.

I didn't protest, just remained still as she began to move her hips up and down in a slow but rhythmic thrusting motion. Honestly once it had begun I didn't want to move. The feeling was heavenly, and only enhanced by getting to watch her try to balance being gentle with me with her alpha instincts to breed.

Still, just as she clearly wanted more so too did I, I began to rock my hips back against her, just the way I'd practiced when she’d been getting off between my thighs.

Once we'd built up a good back and forth, silently we both began to accelerate our movements. Our positions began to shift, before I know it I was partially leaning over her, my arms either side of her torso. Her face was just inches from mine, propped up by her arms pushed out behind her.

I could feel Mococo's hot breath on my face, see her beautiful pink eyes looking at me longingly, see her plump lips, hanging open.

There was a line she'd drawn long ago. That no matter how much we helped each other out, no matter how much our hormones ran high, that we should not kiss each other on the lips.

And I'd never wanted to cross the line more in my life. 

“Can I kiss you?”

The question shook me. For a second I wondered if I'd said it. If I'd let the mask slip. But as I looked at her, as I replayed it in my head I realised that I had not. It was her rule, her line, and she was willing to cross it.

“Yes.”

I put my lips to hers with all the passion I'd bottled up, one hand I'd been using to steady myself going straight to her face.

And to my surprise she met me with equal force. Our hips and our lips moved together saying things our voices never could. I melted into her and she into me. In that moment, in that place, after eighteen years together we were the most connected we'd ever been. We were one.

But good things never last forever.

The moment Mococo's knot inflated inside me ought to have been one of happiest of my life, but as it did I immediately could tell something was wrong. 

“It broke…” Mococo said, looking at me with worried eyes, confirming my suspicions.

I wanted to tell her to keep going, to fill me with her seed, to get me pregnant. But I knew I couldn't say it. “Try pulling out.” I said instead.

Immediately I regretted it. Knots are by their very nature not meant to be removed and the feeling of it pressing against my openingwas agonisingly painful. 

“STOP.” I cried, my eyes watering. “You're going to break me if you keep doing that.”

“S-sorry.” Mococo stuttered, her gaze hazy. “What do we do?”

“You have to finish.” 

“But…”

“I'm not in heat. There's a good chance I'm not even fertile right now.”

“There's still a chance…”

“Well we can't remove it and if we wait for it to deflate, there's a chance we're found and then…”

Mococo picked up the insinuation. Our parents were betas and didn't really understand our bodys’ needs. Who knows how they'd react to catching us having sex. “Okay, let's do it.” 

Slowly she began to pump her hips again, though I could tell she was ramping up her speed much faster than before. Hardly surprising given she'd already passed the point of no return. 

For my part I tried to match pace but I struggled. Mococo trying to extract herself must have pulled something because moving my hips too hard became painful.

Mococo clearly noticed, grabbing me and with a burst of strength rolling us over to the other side of the bed, my body now pinned between her and the bed.

Getting fucked from this position was an entirely different beast. Mococo was fully in control of things, her hips free to move as far and as fast as her knot would allow.

But most of all I noticed her face above me, her usual cute demeanour swapped out for a grimace of concentration. Clearly instinct had fully kicked in for her and honestly I was jealous. I longed to be in that place too, to let go and allow my body to take over.

But instead I was so very aware. Aware of her scent, of the taste of her lips, of all the feelings I was feeling, of how she was getting closer and closer to my neck.

She was going to bite me. Mark me. Claim me. I wanted it, I wanted it so badly.

But I knew she didn't.

“Mococo…” I moaned, putting an arm to her face, gently directing it to my own and away from my neck.

“Fuwawa…” Her voice was weak. “I want you.”

My heart soared, but I pushed it down, this was hormones talking, instinct.

“I know, I want you too. But we can't.” I shook my head, tears forming in my eye now not from pain but sadness.

“Because we're sisters?” Mococo's voice broke, even as her hips ploughed into me.

“ Because you're in heat. It's not right.” Tears rolled down my cheek.

“When else could I do it? I'm not as brave as you.”

“What do you mean? You're plenty brave.”

“I'm ashamed. Ashamed of these feelings I have. But I know you aren't.”

“What do you mean?”

“You love me, don't you?”

“Of course I do, you're my sis—”

“NOT LIKE THAT!” She shook her head, her own tears rolling down her face. “You love me the way I love you.”

I was stunned. “You… love me?”

“I do. I love you so much it hurts.” Her tears and mine pooled on my chest.

“But Nerissa…”

“I wanted us to be normal, to give us a chance to grow apart. But it didn't work. When you were with Shiori I just… I couldn't take it. You're mine . You were always supposed to be mine.”

“I was.” I nodded. “I was always yours, whenever you wanted to take me.”

“I knew it.” Mococo's pure smile burned into me, her eyes gleaming with life even drenched in sweat. 

And despite my every rational thought, I fell in love with her all over again. “Take me then. There's no going back now after all.”

“It's okay?”

“It's okay.”

“But Shiori…”

“I don't want Shiori. I want you.”

She leant in and kissed me. Desperate and ferocious, nothing like our first, we let out everything we had bottled up, only pulling away when we were out of breath.

“I'm close.” Mococo's voice was shaky.

“Then take me now.” I said, no longer afraid.

Mococo didn't hesitate for a second. Her teeth broke my flesh and pain and pleasure overloaded my in equal measure. But I wasn't the only one feeling it. Just as felt her teeth enter me, I felt her knot burst, pouring hot liquid inside me. My mind went white and I wrapped my arms around her.

We stayed like that for some time, soaked in each other's juices, her mouth licking at the bite marks on my shoulder.

“This feels like a dream,” I whispered.

“You're awake.” Mococo whispered back. “We both are.”

“I love you, Mococo.”

“I love you too.”

I smiled and hugged her tight. I knew that, in truth, this was just the start of our story. That much harder things awaited. But holding her like that, I couldn't help but feel that everything was going to turn out just fine after all.