Chapter Text
Something was deeply wrong with Yelena Belova.
At first glance, nothing about her family in the sleepy state of Ohio was awry. She had an intelligent and strong-willed mother, a doting and often childish father, and an older sister she desperately wanted to emulate one day. The perfect all-American family with freshly cooked casseroles and double-feature movie nights. They were normal, completely and utterly normal.
But even as young as she was, Yelena knew sitting outside the bathroom and listening to her sister’s little grunts weren’t normal. It’d been a complete accident when she opened the door in the middle of the night, curiously checking on the sounds coming from within. It should’ve been fine; after all, they’d bathed together. She knew Natasha had a special part beneath her clothes, much different than hers.
But seeing Natasha like that… with her hand moving back and forth on her thing… with the white stuff coming out of it… with that look on her face…
Natasha had screamed that night, shoved her out, and slammed the door. By all accounts, she should’ve cried and run to her mother and father. After all, her older sister, whom she loved more than anything in the world, had yelled at her for something she didn’t even know was wrong. Their bond, though not broken, should’ve fractured.
But instead, she pressed her little ear against the door and listened. From that point on, she waited for Natasha to leave the room at night before sneaking after her and peeking beneath the door. She watched the shorts fall on the floor before that strange sound began again. What was her big sister doing? She wanted to know, to ask questions, but this felt like a secret that belonged only to her. It made her feel special and warm. Her bond with her sister hadn’t fractured; it was even stronger than before.
Not until much later in life, long after her childhood in America ended, did Yelena realize what’d been going on behind that bathroom door. Alone, locked in one of the many cells in the Red Room, Yelena’s understanding should’ve amused her. How the strong-willed and confident Black Widow of the Avengers was jacking off into the toilet. But she didn’t even smile.
Instead, she unzipped her catsuit and snuck a hand down to her crotch. She knew the cameras were watching. Those sick perverts. She knew they’d see her at her weakest and most vulnerable point. But she didn’t care. When she came, she let them watch her mouth part and whisper her sister’s name repeatedly before starting all over again.
Yes, something was deeply wrong with Yelena Belova.
Not many people knew this, but Avengers Tower had constant problems with the heating ducts. Normally, it wouldn’t have mattered. Natasha would be deep underground in a bunker or halfway across the world sipping a freshly made espresso. But after the Battle of New York, SHIELD was in disarray, and being a spy would be much more difficult with her face on every television in the world.
So, here she’d stay, in this testament to a wealthy man’s ego.
Tossing and turning beneath the blankets, she struggled to find sleep. After all the reports, interviews, and recovering from being hit by a flying hovercraft, slumber should’ve come easily. But instead, she threw off the blankets and stomped toward her personal bathroom.
Natasha dropped her pajama bottoms before she reached the door, her dick popping free of the tight confines. God, she was pent up. Maria had been too busy with paperwork to play with, and being a public figure meant no late-night hookups anymore. So, instead, she stood over the toilet and gripped her shaft.
Yes, she could’ve watched porn. Yes, there were plenty of toys she could’ve wrapped around her dick. And yeah, even lying in bed and ruining the sheets would’ve been a better option. But there was something nostalgic about jerking off into a toilet. It brought back memories from when she’d been in Ohio.
She’d known Yelena watched from beneath the door. How could she not? She should’ve stopped or tattled to their ‘parents’, but something had awoken in her. Knowing she was being watched by her sister, with both of them only a thin door away from one another.
Natasha grunted the same way she did when she was younger. Wriggled her hips and spat in her hand. She pretended to be uncoordinated and clumsy like before. But most of all, she imagined her sister’s eyes were still peeking at her from beneath the door.
Natasha came so fast. She blasted the toilet bowl, coating it in her creamy sludge. Rope after rope spurted from her dick, and she braced herself against the wall to keep from toppling over. It was so good, too good. She needed to go again.
Something was deeply wrong with Natasha Romanoff.
It was only natural that they tried to kill one another in Budapest.
Like Yelena, her sister had gone through hell. But they’d never actually cross that line; their love for one another transcended bullets and blades. They’d exchanged insults like sisters, bickered like sisters, and even critiqued one another’s clothes like sisters. Nothing changed.
After constructing a plan to rescue their father, Natasha secured a cheap motel for the night. Cockroaches scuttled up the walls, the carpet reeked of both cleaner and urine, and every corner was caked in the filth a vacuum or mop couldn’t quite reach.
But Natasha getting this room meant everything to her. How long had it been since they’d slept next to one another? Even though she tried to hide her excitement, she noticed Natasha cocking an eyebrow her way when a smile slipped past her cool facade. But how could she play it cool when she finally had her sister back?
Despite no longer living in Ohio and the decades of blood in their ledgers, Yelena needed to believe nothing had changed between them. That they could go back to being sisters and nothing more. That she hadn’t spent years masturbating to the idea of Natasha fucking her against—
No. Stop.
As Natasha slept on the bed beside hers, Yelena struggled to fall asleep. She should, of course; they had a big day ahead of them. But the little girl in her was too excited. She wanted to swap stories about their childhood, to reminisce about holidays and their parents. To do things sisters did. But eventually, exhaustion took her, and she slept more soundly than she’d slept in decades.
Frying chicken.
Yelena’s eyes flashed open.
Why did she hear chicken frying?
Her hand instinctively reached for one of her many pocketknives.
“It’s me.”
Natasha’s voice came from behind the bathroom door.
“What’s that sound?”
“What do you think?” Natasha responded dryly.
Pissing? Was Natasha pissing? No. That sounded like a racehorse.
“Go back to sleep,” Natasha muttered.
“Right…” Yelena lay back down, her head resting on a musty pillow. She almost did collapse into slumber, almost…
“Shit,” Natasha cursed. “All over my clothes…”
First came the splat of wet clothes hitting the tile floor.
Then a mutter of disgust.
Followed by soft footsteps exiting the bathroom.
Yelena’s eyes flashed open for a moment. Just a moment. But it’d been enough to see… it.
She’d later found out Natasha’s dick had been one of the reasons her sister almost didn’t get the position in the States. The last thing the Soviets needed was a girl who stood out from the others. But Natasha had been talented enough to let her ‘extra part’ slide, and Yelena was happy they did not just because of her dick, of course. That’d be silly. Sisters didn’t think about one another’s private parts. Whatever feeling she had could easily be suppressed.
But upon seeing Natasha’s dick bobbing as she walked, she realized she was wrong.
The thick and meaty dick jutted out from her sister’s pelvis like a tree branch. Even in the darkness, Yelena saw the veins running along the silky-smooth shaft. The blunt head glistened in the light, showing off a slightly darker pink. Heavy testicles hung beneath it, not outrageously large, but big enough that Yelena knew she could never wrap her mouth around them.
Wait.
Mouth?
Why the hell was she thinking about putting the round head of her sister’s cock between her lips? She’d never let her pink and slimy tongue slide over the piss slit, enjoy the taste of her sister’s sticky clear precum gushing into her mouth. She wouldn’t grip the shaft with her small hands, unable to wrap them completely around, and massage the creamy hot seed from her older sister’s balls.
She wouldn’t suck, slurp, gag, and choke on something that could only be defined as a certified ‘bitch-breaker’. There was no way she’d guzzle the steamy cum from her sack, gargle the pearly sludge in her once quick-witted mouth, before letting it drool down her chin like gravy.
Swallow it? Swallow a huge, healthy mouthful of Natasha’s thick creamy jizz like a fucking whore, on her knees, clit throbbing and nipples hard. She wouldn’t try to milk out more, diddle herself stupid as she tried to get the woman hard again.
“Yelena?”
“Yes?” the woman squeaked, despite her usually low voice.
“Where’d you put that pack of boxers? I got piss on mine.”
“Oh. They’re in my backpack.”
“Thanks,” Natasha said. “Sorry. For waking you, I mean.”
“It’s alright.” Yelena pressed her cheek into the pillow, trying to drive away the image of her sister fucking the daylights out of her. How their eyes would lock onto one another, lost in passion as they came like wild animals. Her legs wrapped around her sibling as the woman pounded her slutty cunt like it was—
“What are you doing?” Natasha asked.
“I had an itch!” Yelena pulled her fingers from her soaked panties.
Returning to the motel bathroom, Natasha pulled up a fresh pair of boxers. She wasn’t five; she knew how to aim for the toilet. Even if she’d been distracted by the mission ahead, she wasn’t absentminded enough to make a mess. But in the middle of relieving her bladder, a filthy thought entered her mind.
What if Yelena was watching her?
Natasha's eyes had darted toward the bathroom door, trying to feel her little sister’s presence. She was there. No. She wouldn’t be. They’d both grown up. They had a long day tomorrow. They wouldn’t spend the night thinking about perversions. They were professionals attempting to save women like them.
So, why had she started jerking her dick? Why had she bitten her lower lip to hide the little grunts she had wanted to make? Why was she such a filthy dirty whore when it came to her younger—
Dropping the fresh pack of boxers on the floor, Natasha shook the taboo thoughts from her mind. It’d been wrong to think of Yelena that way, just as it’d been wrong to pretend to accidentally make a mess on her clothes. That wasn’t her; she wasn’t a depraved pervert who got off on fantasies of her little sister.
She was so much better than the horny girl who jacked off in the toilet all those years ago. She was a hero, an Avenger, and the idol of millions of little girls across the globe.
So, like the shining example of heroism, Natasha sat on the edge of the toilet seat and prayed for her erection to go down.
She had to be okay. She had to be okay. She had to be okay.
Yelena didn’t understand what being ‘Blipped” meant, as they called it. At the end of the day, whatever happened at the fancy Avengers Compound didn’t matter to her. The five years mattered. The long and awful five years she’d lost.
She and Natasha were supposed to start over as a family and move into an apartment together in New York City. They had the flat picked out and everything. But so much could happen in five years, and she hated how she couldn’t have been there for her sister.
But something pulled at her, an unseen force, practically dragging her from across the world back to New York City. It was like an itch she couldn’t scratch, a scream that wouldn’t cease; this urge practically flung her back toward the apartment building she and Natasha looked over. Her feet flew up the steps, skipping every other one. The elevator was too slow, and her body needed to move now more than ever.
Upon reaching the top floor, even the Black Widow was out of breath. Pangs stabbed her side, and her lungs couldn’t fill with enough air. She wrestled with her body, forcing it forward. She needed to be there, to subdue that horrible urge before it swallowed her whole.
Natasha needed to be okay.
Clint shouldn’t have been the one to die.
Natasha sat on the floor of her empty apartment, staring out the window at the city they’d fought so hard to save. Half a country away, a family was missing their father. She needed to tell them herself; she had to; it’d been her job to protect the big, stupid asshole. Where did he get off going and dying like that? Why did he leave her to pick up the pieces of a family who needed him so much more than her?
God, when would she stop crying? She spent so long fighting back the tears, and now, here she was, an utter mess. She hadn’t even gotten a proper change of clothes, only rewashing her catsuit repeatedly. A pile of tissues lay around her, and she still reached for another one. Her face felt so puffy, but this hurt worse than any bruise. Pulling the last tissue from the box, she dried her eyes for what wouldn’t be the last time.
She’d been so lost in her own misery that she was only on her feet a few seconds after the lock on the door clicked. By the time she’d reached for her pistols, it was already swinging open.
Natasha took a sudden breath, red eyes watering.
Yelena was just as she remembered from five years ago. The pale blonde hair, the loose-fitting clothes, and even the prominent dark eyeliner. She still looked and dressed the way she wanted, something Natasha had admired since they were kids.
“Natasha?” Yelena stepped forward, but slowly, like she was afraid the woman would fade away at the slightest breath.
Natasha said nothing; she stood still, even when Yelena rushed her, even when she wrapped her arms around her and held her close. Even when she cried onto her shoulder and asked frantic questions before planting kisses on her forehead, it wasn’t until Yelena’s lips touched hers that a vocal moan escaped.
Her sister’s tongue felt nice, especially when it petted hers. Those soft lips pressed gently on her own, but with enough force to acknowledge who initiated the kiss. Yelena’s arms wrapped around the back of Natasha’s neck; the taller sister pulled down toward the insatiable sibling. The sheer amount of warmth and passion rekindled the dying light within her weary body.
No.
Natasha’s eyelids fluttered open. With a forceful shove, she broke their connection, staggering back. She touched her lips, the connotations of what she’d done hitting her in waves.
“Y-Yelena…” she started while stepping back.
“I wanted to tell you how I feel sooner,” Yelena started, her smile shining through the tears. “But no time was a good time and—"
“You need to go.” The words spilled from Natasha’s lips.
“Go?” Yelena whispered, the smile fading.
“Please, I need time.”
“Time? I did not know if you were alive.” It would’ve been accusatory if not for her voice cracking. “No one would talk to me. No one would tell me about you. I had to find you myself.”
“You’re mad because I didn’t call?” This was all too much, too fast. “Because I didn’t make it easy on you?”
“Because you were supposed to look for me!” Yelena screamed, tears spilling free.
Natasha went silent.
“I hate looking for all of you!” Yelena cried.
There, in the middle of what was meant to be their new beginning, her sister cried like a child. Great full-body sobs with a red face and ugly tears. But her arms remained at her sides, like an obelisk. Alone and unable to budge, she whimpered as decades of emotions broke free within her.
Natasha’s body moved on its own. Her arms hugged Yelena close, gripping her tight, sharing her warmth. As her sister wept, Natasha stroked her braids and whispered, “So this is where you’ve been.”
Yelena cried harder.
They stood in the empty apartment, reunited after far too long. It should’ve been perfect. Wholesome. Kind.
But then Yelena kissed her again.
Natasha didn’t stop her, afraid of pulling away. She stayed still as her sister’s tongue searched her mouth, even enjoying it. But when Yelena’s hands groped her breasts through her catsuit, she scoured for ways to cool the heat building between them. Her little sister needed time to acclimate to these feelings; throwing herself into Natasha’s arms wouldn’t solve anything. It’d only make them codependent. She was ready to break their kiss and share her concerns when Yelena’s hand rubbed her crotch.
Natasha moaned into her little sister’s mouth, thrusting her bulge against her sibling’s hand. She’d been meaning to retape her dick in place, but so many habits had fallen by the wayside. The woman ground against Yelena’s soft hand, the tightness of her clothing making her ache. This wasn’t right. They were both suffering. This wouldn’t solve anything.
But it’d feel good.
Yelena’s hand found Natasha’s sanitary zipper. With a quick tug, the flaps burst apart, and the apartment’s cool air bathed her glans. She broke from the kiss to groan, the head of her massive dick prodding Yelena’s stomach. Her younger sister pressed back against it, the sensitive tip rubbing up and down rough fabric.
“Y-Yelena…” Natasha whimpered, her engorged dick unable to swell any harder. “Gentler?”
The hand, still groping her chest, pinched Natasha’s nipple through the fabric. The woman shuddered, a thin thread of precum drooled from her tip and pooled on the floor. How had she let her body get so worked up? She should’ve masturbated at least once like she did before every mission. Any other time, she would’ve rebuffed Yelena and suppressed her needs, but now wasn’t one of those times. Even before her sister knelt before her, mouth open and eyes locked on her dick, it was doubtful she’d even be able to get soft enough to put her clothes back in place.
“You are so much bigger up close,” her younger sister whispered, breathing heat along the head. Natasha’s dick twitched at the sudden warm air, and she struggled to suppress her groan of need. That groan transformed into a cry of shock after Yelena dragged her tongue along the underside of the head. The woman shuddered, her hips instinctively jerked forward, a sure sign of going so long without release.
Undeterred, Yelena pressed her lips against the round head, making an incestuous and depraved kiss. Her tongue slipped out, lapping along the tip, and Natasha gave in. Openly moaning, her knees trembled while her younger sister wrapped her mouth around her ten-inch member. The warmth, the wetness… it shouldn’t have been anything special, but receiving head from her own sister drove Natasha wild.
“You taste so good,” Yelena moaned, before spitting on the dick to lube it up for her slender hands. They wrapped around Natasha’s member, slowly jerking her off as her mouth returned to worshipping the mammoth tip.
Natasha’s moans were sweeter than before, more frantic and desperate. It was like her true self finally shone through, letting her guard down for the first time in a long while. She wished she could grab something, but Yelena’s mouth held her captive in the middle of the room. She couldn’t fathom pulling away, especially as her younger sister started suckling at the head.
“Oh, oh, oh…!” The words were much more girly than she intended; they sounded unfamiliar, but in Yelena’s presence they felt right. She knew this was fucked up; even if they weren’t related by blood, she still considered herself the woman’s sister. But her mind was clouded by the loud slurping and the moans of pleasure traveling through her engorged shaft and down to her cum laden balls. She couldn’t stop even if she wanted to.
Bobbing excitedly, her sister quickened the pace. The warm mouth turned hot as she took more of Natasha’s dick in. The woman felt her tip brush against Yelena’s tonsils, but her sister was undeterred. Gripping the base of her dick, the younger woman held it still as she forced her head further down. The tight wetness drew an even longer, more euphoric groan from Natasha. Her sister was readying to deepthroat her.
The head squeezed and popped into Yelena’s throat, prompting a quick gag and convulsion, but she just tried harder. Natasha knew how large she was compared to other people, Maria had tried to throat her once and swore never to again. But her sister was a different beast; she could tell by looking down at the woman’s watery and red eyes. Determination, need, and lust swam as real as the tears before she gave a healthy swallow and downed an inch.
“Y-Yelena…” Natasha shuddered out, her dick stretched her little sister’s lips so thoroughly they’d become thin lines. The grace as Yelena took another few inches had her orgasm surging closer, so fast it surprised even Natasha. She could usually hold out much longer, but locked within the tight confines of the perfect mouth, her body couldn’t help itself. “Yelena!”
No other word needed to be said. Yelena, with adoring and lovestruck eyes, pulled her head back. The slippery but tight friction of pulling out of her sister’s throat sapped her stamina. The head of her cock swelled to near bursting, the pleasure building to its peak, and Natasha surrendered to her wonderful and taboo new lover.
Cum surged into Yelena’s mouth, thick and hot. The pearly cream filled her cheeks in only two spurts, a testament to how much her big sister loved her. Yelena gazed up at Natasha, the woman’s eyes scrunched tight and her lips parted in a cry of pure lust. Her pale face was rosy, sweat dribbled down the bridge of her nose, and her breathing was panicked and frenzied.
And it was all Yelena’s doing. She’d brought that expression from her big sister; she’d given her a beautiful orgasm, the height of all pleasure. She drank to her success, her throat bulging as she swallowed a hearty mouthful. Love never tasted so sweet before. She wanted to share it.
Before Natasha could recover from her orgasm, Yelena pulled her mouth from the greasy head. She stood in front of her sister, the woman’s eyes opening just a bit, questioning and confused. Taking Natasha’s face in her hands, Yelena went in for another kiss. Less resistant than before, her sister accepted. The moment their lips were sealed against one another, Yelena fed Natasha her own cum.
The older sister didn’t hesitate as Yelena shared her treat. Natasha swallowed her fresh seed, sucking it from the younger woman’s mouth. Their tongues tangled, and before Natasha was once again moaning when Yelena’s grip gripped her still engorged shaft. The younger sister kept pushing, forcing her big sister to higher heights so as not to succumb to post-nut clarity.
There was still the ultimate taboo.
Natasha broke from the kiss. Initially, Yelena prepared to reel her back in, but her big sister furiously unzipped her catsuit and ripped it off her body. For the first time in years, Yelena could fully take in her sister’s nudity. The curves of Natasha’s hips, the round fullness of her ass, the thin waist, and skin so creamy she wanted to drag her tongue across it; she drank it all in. But the breasts were the true surprise; the suit must’ve bound them down because they were easily double Ds. Yelena would’ve sucked on them, but Natasha was upon her in seconds.
“Mine.” Natasha seethed like an animal, all conscious thoughts gone in those hungry but vacant eyes.
The younger spy’s clothes were torn away, her bra straps snapped, and her panties ripped apart. Her much stouter body paled in comparison to her sister’s, at least in Yelena’s head, but it didn’t stop Natasha from roughly impaling her moist and steamy cunt.
Both their gurgled and inhuman wails shook the windows. Their bodies collided quickly and violently. It was like being jumped by an animal, so fast and powerful that she couldn’t even wrap her head around what was happening. All she knew was that her sister was finally inside her, and it was worth the wait.
Natasha’s dick stretched her little pussy to the brink. Her channel, already drenched, was gushing beneath every wild thrust. The sheer size and girth of the monstrous appendage pummeling the life out of her broke her brain. But she wanted more. She locked her feet around her sister’s back, pressuring Natasha to keep humping into her cunt. She fondled the woman’s breasts, so much larger than she’d ever imagined. She directed one to her mouth, wet and hungry, before sucking on the thick and rubbery teat.
Natasha roared, her dick spurting another load deep inside Yelena. The twitch, followed by the goopy heat, warmed Yelena’s insides. Her big sister just fucked her, came in her, and it was glorious. Even though she hadn’t cum, knowing the final taboo had been shattered filled her with the bliss of a thousand orgasms.
But there was still so much more to do.
Panting, with sweat dripping onto Yelena’s bare body, Natasha bathed in her second orgasm of the night. The tremendous heat had overwhelmed and nearly consumed her. As her dick shot the rest of her load deep within the tight and dripping cunt, she struggled to catch her breath. It all happened so fast, she couldn’t remember everything that took—
“You did so well.”
Yelena.
Beneath her.
Around her.
She’d fucked her little sister.
Like a cold shower, Natasha lurched backward, pulling her softening dick free. The salty taste of her own cum lay heavy on her tongue, while a thread of seed still oozed from her tip. What had she done? She broke them. She’d given in to her lust and broken everything!
“Yelena,” Natasha started, her throat parched and lips dry.
“No.”
Yelena pounced on her, this time pinning her beneath the blonde’s compact little body. She could’ve broken free, but suddenly her sister spun around on all fours, and she was beneath a dripping and dewy cunt. The strong and musky scent of sex burned Natasha’s nostrils, but she instinctively breathed it in.
“I want more.”
A hand gripped Natasha’s dick, and suddenly her softening member was crammed within Yelena’s mouth. It hurt. Dear lord, it stung after having two visceral orgasms in a row. Natasha cried out, but the blonde didn’t give a damn. She sucked and licked and jacked off her deflating dick.
“Pl-please,” Natasha whined, her hips wriggling. “We-we need to stop… we can’t do this! We’re family!”
In response, Yelena sucked harder, eliciting a cry of pained pleasure from Natasha. It hurt so good, even if her balls ached and her tip burned, she couldn’t deny the talent.
“Sl-slow down?” It’d been meant as an order, but it came out like a pitiful child trying to get attention. After twin orgasms, she felt weak as a kitten. It took so much of her strength just to stare at her cum dribbling down her sister’s snatch and onto her cheek. “Please?”
Yelena’s lips popped off her dick, but before Natasha could give a breath of thanks or relief, she heard, “The time to talk is over.”
And then she lowered her cunt over Natasha’s face.
The older sister’s words were smothered the moment Yelena returned to sucking her off. Her hazy mind, awash with heavenly agony, surrendered. She took it like a sexual punching bag. Even when Yelena’s cum filled cunt oozed a dollop right onto her lips, she licked it up. There was no denying it, her little sister was in charge.
But even those thoughts were lost in sensations, and she returned to animalistic tendencies. Her dick was warm, and a cunt was in her face; her body knew what to do. Though her arms were too weak to move, she opened her mouth and proceeded to eat out her little sister. Her sticky seed filled her mouth, but she swallowed it obediently, gorging on the hot pussy in front of her. All tact and skill went out the window as she lapped and suckled on the swollen lips. She tongue-fucked it as best as she could, tasting them both. The heavenly soft and wet flesh dragged over her mouth. It was like worshipping a nectarine. She bathed it with all the love she could muster and prayed it would be enough.
In response, Yelena mashed her cunt lips against Natasha’s mouth. The younger sister ground her pussy back and forth, smothering the redhead beneath her. All that existed was this wonderful juice and cum filled pussy. Gobs of cream slipped free, swirling around in the older sister’s mouth. Before now, she’d only tasted her cum once out of curiosity and had come away disgusted. But here, mixed in with her little sister’s nectar, she could’ve eaten it all day. She feasted on it, driving her tongue deeper to try and work out more gooey morsels; lust had overridden her needs and wants; all that mattered was Yelena’s approval.
A gush of arousal slipped down her gullet, and Natasha swallowed it eagerly. The little gasps of breath she snuck in filled her lungs with cunt and sweat. She drank it in, needing to live beneath her forever. Letting go never felt so good, so addicting. To not be in control and to let herself go into the arms of someone she’d known for most of her life felt so natural.
“Good girl,” Yelena gasped, her hands stroking up and down Natasha’s rehardened dick. “You are ready again.”
The cunt left Natasha’s face. The older sister struggled to keep her tongue nestled within the confines of her little sister’s puffy lips, desperate to regain her purpose.
“Adorable,” Yelena giggled, “but you are needed elsewhere.”
The enthusiastic devouring of her cunt fueled the fire in Yelena’s loins. At long last, her big sister was frantically eating her recently fucked pussy, drinking mouthfuls of both their cum. What she lacked in frenzied incoordination, she more than made up for with enthusiasm. She imagined this must’ve been how it felt to be eaten out by a virgin on prom night.
But enthusiasm could only get Natasha so far, and Yelena hungered for her own peak. Pulling herself from her sister’s desperate mouth, she mounted Natasha’s rejuvenated dick. It’d taken some effort to get it hard again; cumming twice in a row would’ve wiped out a normal man. But this was her big sister; she could do anything if she wanted. And by the firmness of her hard-on, the prospect of fucking her little sister was more than enough.
Yelena rubbed her sister’s cockhead over her cunt lips, groaning as the precum covered and spit shined head sent shivers through her body. Locking eyes with Natasha, she nearly giggled at how rapt her sister had become. The fear in her widened eyes matched her mouth, gaping and dumbstruck. Yelena couldn’t look away as she impaled herself on her sister, even as her lower lips strained around her; the look of pure ecstasy on Natasha’s face was too beautiful to miss.
Slowly, she lowered herself further down, her hungry pussy gobbling up inch after inch. It wasn’t possible to take the whole thing, much to her disappointment, but she had to try. The head rubbed against her inner channel, massaging everything sensitive and feeding the roaring fire within. Yelena let out a long, sweet moan, enjoying the feeling of being filled so thoroughly.
When the tip bumped into her cervix, she didn’t even flinch. Knowing she’d taken all she could, while disappointing, had never made her feel more like a woman. Never had anything gone this deep, and she wanted to savor this moment as she gyrated her hips. Shutting her eyes, she bathed in the waves of pleasure rolling over her, drinking them in until she was about to burst. A gloriously debaucherous orgasm built within her molten core, and she was ready to let it take her.
“Y-Yelena…”
She opened her eyes. Never had she heard something so pitiful before. Like a whining puppy, Natasha’s hands clenched into little fists as she trembled. Her ample chest rose and fell, her mouth contorted into a pained look of frustration, and her whimpers were so unlike those of the strong and independent woman Yelena had always looked up to.
Never had she seen someone so utterly pathetic.
God, it was hot.
“What is it?” Yelena feigned obliviousness while she gyrated the other way, the dick inside her drawn around counterclockwise. “It looks like you want something.”
“Puh-puh—” Natasha couldn’t even get the word out. Simply adorable.
“Didn’t you say this was wrong?” Yelena flashed a malevolent grin. “Perhaps we shouldn’t be doing this. Maybe I climb off right now. You do seem to be getting upset.”
“No!” Natasha finally finished a word without stammering. “Please, don’t go! Just… I need…”
“What do you need?” Yelena asked curiously. “Do not tell me you want to continue. As you said, this is wrong. Perhaps we forget about it, yes? I am sure I can find someone to share a bed with. Certainly not my big sister; that wouldn’t be right. Would it?”
“I…” Natasha seemed to be struggling both with her body and her morality.
“Let me just pull off then,” Yelena slowly drew herself up and off her sister’s dick, clenching her channel to make the process as tight and pleasurable as she could. Beneath her, Natasha writhed, hitting her fists against the floor while thrusting her hips up, attempting to keep herself warm inside Yelena’s cunt.
“No, no, no, no, no!” Natasha babbled like an inarticulate child. “More!”
“No more?” Yelena grinned. “I know; I am stopping as quickly as I can.”
She squeezed the cock within her, rubbing her sister’s glans as she did.
Natasha, still as pitiful as ever, “Don’t tease me…”
“Oh,” Yelena mocked surprise. “Do you want to fuck your little sister’s cunt?”
Natasha looked away.
“My mistake. We stop now.”
“I do,” Natasha squeaked.
“What was that?”
“I do.”
“You do what?” Yelena lowered herself down an inch.
Natasha wailed, her hips bucking wildly, but Yelena countered by pulling back up and nearly off.
“Don’t make me say it!” Natasha cried.
Even after so much, she was so strong-willed.
“I cannot make you say anything,” Yelena said plainly. “You are my big sister.” She pumped up. “You are stronger than me.” She pumped down. “You care for me.” Back up. “You would never do anything to me you did not want to do.” Three pumps. Only three. But Natasha was close to bawling.
“I’m close!” Natasha screamed, thrusting herself up and up and—
Yelena pulled off. Natasha’s dick humped the open air like a horny teenager. Her body writhed as she kicked her legs beneath herself.
“No!” Natasha cried, beating her fists on the floor. “No! Please!”
“We would not want you cumming, yes?” Yelena clucked her tongue, suppressing her own needs. This was the hottest display she’d seen by far. Her older sister crying for her pussy like a desperate child throwing a tantrum. The strong hero was reduced to a needy and wretched welp. “You were right; this was a mistake. I should get dressed and go.”
“I need it!” Natasha screamed, covered her eyes as she wrestled with her desires. “I need it!”
“Oh?” Yelena gripped Natasha’s dick with her cunt muscles, eliciting a gasp from her big sister. “Are you saying you need your sister’s sweet…” she rubbed the head over her swollen cunt lips, “… innocent…” she stopped it right at her entrance, “… little …” she slid the tip inside, “… cunny?”
At the top of her lungs, Natasha wailed, “YES!!!”
She could’ve been satisfied, rode her sister and gotten off before finishing with a mind-bending orgasm, but one question stopped her. One question that terrified her to ask, even after all they’d done.
“Do you love me?” Yelena whispered. “Not as sisters.”
To her credit, Natasha didn’t babble out an answer. Instead, pained as she looked, the woman swallowed and panted out, “I’ve always loved you. I fought it. So hard.”
“Why?” Yelena asked, feeling hot wet tears welling up. “Why didn’t you tell me?”
“Because you’re my little sister,” Natasha’s tears spilled over. “It’s wrong.”
“Yes,” Yelena smiled through the tears. “But there has always been something wrong with us.”
Natasha sobbed, “I missed you so much!”
Yelena looked down at her older sister, the great blubbering mess was nearly unrecognizable. She’d finally cracked beneath the weight of a desire she’d fought for decades, leaving her this broken and depraved puddle. Her true big sister, the real face of a woman starved for ‘the wrong’.
“So, this is where you’ve been,” Yelena repeated Natasha’s words back to her.
She sank instantly.
Succumbing to her own desires, the younger sister rode Natasha’s precious dick. Her cunt squelched loudly with each wild pump, her mouth agape and panting. Natasha’s hands found her waist, the fingers trembling, and Yelena seized them in seconds. She interlocked their hands, using them to pull herself down harder and push herself up faster. Her blonde braid flopped around her shoulders, and her tits jiggled. She didn’t give a damn about the battering her cervix took; she was used to the pain, while the pleasure was too damn good.
“Say you love me,” Yelena said between breaths. “Say it.”
“I love you!” Natasha’s lust-filled eyes ran over her little sister’s body. An open-mouthed smile spread over her face.
“Do you love fucking me?” Yelena panted, picking up the pace.
“I love fucking my little sister!” Natasha bared her teeth, growling like a deranged animal. “I love your cunt! I love it! I waited so long!”
It was everything Yelena wanted to hear. The pleasure in her cunt and the filthy thoughts in her head met as one. They burned in her core, sending a flow of heat through her entire body. She was close to finally satisfying her incestuous lust.
She wanted it to last longer, but she couldn’t keep the flames at bay. Beneath her, Natasha gazed into her eyes as if Yelena were her goddess. Still stained with tears, she mouthed the words “I love you” repeatedly. She bucked as hard as Yelena crashed down, their bodies in a synchronization only family could understand.
But all good things needed to come to an end, and this wasn’t any different. Because as Yelena’s pussy squeezed the magnificent dick within her, she saw the strain in her sister’s eyes. The vein bulging in Natasha’s throat and the fingernails digging into the back of her hands. She was fighting off her release, being the ever-doting big sister, putting the cherished youngest’s needs before her own.
It would be delicious to keep Natasha fighting to hold back, to allow that healthy load to build until it drove her big sister into insanity. But Yelena was much too kind, and she doubted she had the strength to hold back either. So, she let go.
“Cum with me!” Yelena moaned, the fires rushing through her.
Natasha and Yelena screamed at the heavens as they tumbled into hell. Hot juices bathed the older sister while sticky and fertile cream spurted into the younger one. The same dick that’d squirted behind the bathroom door, now twitched inside her cunt, releasing Natasha’s cum where it truly belonged. She’d been born to be her big sister’s breeding hole; a title she’d wear as proudly as Natasha would forever be known as her personal fuck stick.
Their pleasure combined into a melting pot of orgasmic bliss. Their fingers intertwined as they embraced this new and depraved existence. No secrets, no holding back, this would be their lives forever and always.
Yelena’s legs gave out from under her, and she came tumbling down on Natasha. Their wet, hot, sweaty bodies met, still sealed together by cunt and cock. She felt the cum still pulsing into her snatch, breeding her with incestuous seed. Natasha continued grinding against her snatch, panting as she seemingly struggled to empty the last of her cum within her sister.
“There…” Yelena was surprised by the rasp in her parched throat. She swallowed and said, “There will be more time.”
“I know,” Natasha groaned, “but I want this time to go on forever.”
“You’re so greedy.” Yelena traced her finger around her sister’s nipple while she rested her head on the other soft tit. “It’s almost as though you want me all to yourself.”
“I do.” Natasha wrapped her arms around Yelena, holding her close. “You’re mine. Now and forever. I’m never leaving you again.”
Yelena nuzzled closer against her big sister’s breast. “Is that a promise?”
“It is.” Natasha kissed Yelena’s forehead. “Besides, I don’t think there’s anyone in the world who could satisfy us the way we can.”
“God, we’re so fucked up,” Yelena whispered, giving her sister’s dick another squeeze in her pussy.
“I wouldn’t have it any other way,” Natasha groaned. “You’re my perfect little pervert.”
“Why am I the pervert?” Yelena gave Natasha’s nipple a little flick.
“You spied on my masturbating.”
“You knew?”
“You had all the stealth of a horse.”
“So…” Yelena murmured, “you still came knowing I was there?” She snickered, “Did that make it better?”
Natasha was silent.
“Pervert,” Yelena teased.
The two sisters giggled until night, still locked together, before eventually drifting off to sleep.
They finally knew the other wasn’t going anywhere, with even more fun to be had when they woke up. There was still so much more to try, so many years to make up for, and they’d cherish every moment fucking each other into oblivion.
Yes, something was deeply wrong with Yelena Belova and Natasha Romanoff.
And they were okay with that.