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when i write the omega simon fic no one asked for instead of the shower sex fic i made a joke about in my other fic:

Summary:

“Grace, Grace, Grace-!” He moaned faster this time, his movements getting faster. He could feel himself about to climax, his hips got lazier rubbing against anything, air or pillow. His thighs clenched towards each other, the pillow being the only wall blocking them. His moans became into whimpers until he finally came. It dripped down his thighs onto the cream-colored pillow. He started at the mess he made but he still felt all hot inside.

He groaned. If only Grace was here to fill him up.

He moved his pussy away from the pillow and looked behind him only to see-

Grace.

OR:

The Omegaverse existed back in Simon’s universe. But it didn’t in Grace’s. And now Simon’s in heat.

Notes:

author was lowkey bored while writing this but it was like “hmmmmmm, i could write like my ISAT AU of PHM + Bloodymary, orrr i could write a Modern AU, hmm or the shower sex fic finally… OR OR ORRRR i could write like uhhhhh uhhhh mmm UGHH WHAT TO WRITE-“ and then it became this.

i also currently have fours drafts besides this.

also i have no fucking clue about the omegaverse i only read like one fanfic and then two or three mangas about it

(See the end of the work for more notes.)

Work Text:

It was a normal day on Erid. Grace was teaching, Simon was at the greenhouse, and Rocky was out on a date with Adrian. Everything was going perfectly normal.

 

Until Simon felt his heat coming.

 

“Damnit’mfucked.” Simon muttered under his breath in one whole word. He immediately got away from his waters and put the watering can down. He was not going to ruin the scent of his greenhouse with his stupid Omega pheromones. Although they did smell sweeter and better than they had before. Soil, honey, and perhaps the scent of blooming flowers floated in the air around him. Unfortunately, leaving the greenhouse meant that he would have to go Grace’s house and his pheromones would be all around the place. Which also meant Grace would come back home to smell all this…

 

Shit.

 

Uh…

 

Simon started feeling hotter now, also sweating. He decided “fuck it” and walked into Grace’s home and went to lay down on the couch. He laid his head down on a pillow and squirmed all over the couch. He felt more and more uncomfortable as he continued to feel nothing against him. His skin flushed and he began to feel more aware of the heat and scent surrounding him and the softness of the pillow and the movements of his body. He wrapped his arms against his stomach, but it didn’t feel like enough.

 

He needed something, someone! Someone like Grace, to touch him all over and stop this overwhelming heat. He felt like he could just hump the air right now thinking about Grace.

 

“Grace… Grace, mmm- Grace!” He whisper-shouted for him, although knowing Grace wouldn’t come and Simon wouldn’t want Grace to seem him looking like a mess. He knew Grace wouldn’t be home for a long time. He could probably hump the air all he wanted to. His hips shifted the couch under him from that thought.

 

After rolling his body on the couch again, he got up to go to Grace’s bedroom, instead of his own. He fell on top of the bed. God, he really wanted Grace right now. To play with his clit and stick his fingers inside him. Push his throat down his cock and make him suck until he came. Maybe even knot him right after to fill him with pups, even though Simon knew he couldn’t get pregnant.

 

He sighed. Too bad for him, he was sure Omegas, Betas, and Alphas didn’t exist in Grace’s universe. And for Simon, not many of all those different types existed back on Eden. They almost went extinct, but some of them survived and were able to keep on surviving. His mother was an Omega, half of the women were Omega’s. It definitely made it easier for Father, a normal human, to recreate easily. Simon hated being an Omega and took any suppressants he could find to get rid of his scent. Occasionally, when his heat came and he was around others, he’d get groped and of course he got very aggressive towards those. He was known as a feisty Omega by those who even knew he was an Omega. He learned to control and keep in his heat ever since. This meant his heats would come at random times, but luckily he’d be alone and he would usually touch himself until it stopped.

 

Upon meeting Grace and arriving to Erid, he forgot about his heats since they had finally stopped for a long time. But now there they were, happening to Simon. And this time, there was no other people except an actual pretty and cute guy that respected his boundaries and privacy, and maybe he even liked and had a crush on, on this planet! His face felt even more flushed and he decided he couldn’t wait this one to go out any longer.

 

His fingertips brushed against his pants as they slid under, briefly touching his boxers, feeling his dark brown curls and finally bare skin. His pussy felt dry alongside his rough fingertips. He needed… something, something soft, comfortable like Grace. He tilted his head up, eyes drifting to the stack of pillows arranged in a row. He doubted he would be horny enough to do this until he had already felt the pillow in between his thighs. His thighs held the pillow up, allowing a corner ready for his entrance. He settled himself down on the pillow, his hole enveloping the warmth of the pillow beneath him. He moaned easily while his scent now flooded the entire room. Feeling even hotter, he began to hump the pillow, rubbing his now-formed slick all over. He took off all clothes, feeling no need for them anymore. He bit his lip, tasting iron as they bled, to keep quiet. Until he realized he had a second mouth, one that instead moaned for him out loud.

 

He squeezed one his nipples with his prosthetic arm and fantasized about Grace.

 

“Mmmph, Graaaace…”

 

Grace bending Simon over and teasing him slowly. Grace shoving his fingers to use Simon’s own saliva to finger him. Grace stroking himself, showing his hard length, until Simon begged him to put it in.

 

“Grace, Grace, Grace-!” He moaned faster this time, his movements getting faster. He could feel himself about to climax, his hips got lazier rubbing against anything, air or pillow. His thighs clenched towards each other, the pillow being the only wall blocking them. His moans became into whimpers until he finally came. It dripped down his thighs onto the cream-colored pillow. He started at the mess he made but he still felt all hot inside.

 

He groaned. If only Grace was here to fill him up.

 

He moved his pussy away from the pillow and looked behind him only to see-

 

Grace.

 

Oh fuck he didn’t mean he wanted Grace to be here NOW.

 

Grace stared back at Simon with the equally shocked and flushed face. Simon looked down and saw Grace was… hard? Well, Simon finally remembered to pull the blanket over himself and hid behind it.

 

“G-Grace.!” Simon squeaked, as loud as his moans but not as horny as them. Grace looked zoned out, and once he flinched, it seemed he was back to Erid.

 

“Y-yeah?” He asked.

 

“How long have you been standing there?”

 

“Uh- well, not- not really long I think???” Grace said with a suspicion that he had been indeed standing there for a long time.

 

Simon sighed and decided there was an explanation to be made.

 

“So… back from the universe I’m from, we, well, we had these things called ‘Omegas?’” Simon tried to explain. He patted his right hand on the bed for Grace to sit down. He did sit down while looking at Simon, probably observing him.

 

“And. I’m an Omega, and Omegas get in these things called ‘heat.’ And when they get into heat, they feel an… sexual urge to be… touched? And th-they release these weird smells into the air, they’re Omega pheromones.” Simon did not want to be talking about this topic with Grace while he was naked and was caught masturbating. Add in the fact he still felt hot and Grace was hard.

 

“So, theres, uh other things too like ‘Alphas’ an-“

 

“So you feel really… sexual?” Grace said. He had a gleam to his eyes, a gleam that would usually happen when he was learning something interesting and was curious. But also a lust to his eyes, searching from up-to-down his body. Simon could feel more slick gush down from his thighs from that.

 

“Yeah-“ He choked on a moan that came half-way. He looked down to see a finger prod into his entrance, his entrance taking it easily. He looked right back up to see a smug expression on Grace’s face. The blanket hid his finger’s slight thrust into Simon, although Simon couldn’t hold in his moans. Slight gasps came out of him as another slid right in.

 

“Graaaacuh.” Simon moaned out.

 

“… Please don’t tell me I’m reading this wrong…” Grace muttered under his breath.

 

“You’re not.” Simon said. Before Grace could reply, Simon leaned in and kissed him slowly on the lips. Grace leaned back in. He pushed Simon closer, causing his fingers to drag into Simon’s walls deeper, making Simon half-gasp half-moan. While his mouth was open, Grace took it as his chance to sneak his tongue right in. Their kiss deepened into a sloppy make-out, teeth almost clacking against each other. Simon felt himself get more heated as the time went by, and felt confident enough to begin to palm Grace.

 

Grace moaned for a bit, it echoing into Simon’s mouth.

 

Simon stripped Grace of his pants and boxers finally, being able to now touch him skin-to-skin. His cock dribbled with pre-cum and Simon licked a strip of it. He saw Grace shudder.

 

Before deciding to suck his cock, Simon stroked Grace as Grace pushed in another finger. The scent of honey filling the room stronger. Simon’s brain had drowned in fog as they continued to touch each other, Grace’s now-four fingers thrusting in-and-out and Simon’s quick, yet teasing stroking. Eventually Simon came first, squirting onto Grace’s fingers, then Grace, up-to-down his own chest and a bit on Simon’s own fingers as well. Grace licked a bit of Simon’s cum, arousing Simon even more.

 

”So, do you still feel a sexual ur-“ Simon basically pounced on the man. “Shut the fuck up.” Simon growled.

 

“Oh, oh okay.” Grace replied, a bit anxious yet hard from the tone. “But, uhm, how do you wanna do this? L-like do you want me to eat you out or…” Grace was about to say until a pretty, pink vagina became his view. Simon looked down at him for assurance and all Grace could do was crack a toothy grin and stick a thumbs-up in the air. That was totally going to ruin the mood, but there was no time to think about that as thighs went on both sides of his head and he got to taste Simon.

 

Tasted sweet, just like Simon himself. Grace stuck his tongue in farther, licking at Simon’s slick, accidentally licking some of his dark curls as well, but nonetheless eating Simon out. Speaking of Simon, he moaned Grace’s name, his hips moved back and forth, his thighs trembled, and Grace felt like he would get crushed between those rock-hard thighs. Not like he’d be mad dying between them while sticking his tongue into his beloved’s beautiful pussy and hearing him moan and whimper each time. It didn’t take long for Simon to squirt right into his mouth. Honestly, it tasted even more delightful knowing he’d be the only one to get Simon rocking back and forth like that.

 

Simon got off his high and also Grace’s mouth and sat down on his chest, breathing heavily.

Grace didn’t want to disturb Simon’s ongoing heat, but he definitely had a lot of questions to ask. Although, there was already one in his mind that had escaped his lips.

 

”What was I doing in your fantasy, huh?” Grace asked as if a question, though the tone was teasing, a tone Grace did not know he had in him. Simon also did not recognize that tone, causing a slight blush to cover his cheeks once again.

 

”And why would you wanna know, huh?” Simon smirked in reply, tapping at the bridge of Grace’s glasses. “You wanna make it reality and not a fantasy?”

 

”Matters if you tell me.” Grace responded, getting a boost of confidence and tracing both V-lines on Simon’s body.

 

”Then you won’t mind pinning me down to a wall, right?” was all Grace needed to start out Simon’s sexual fantasy. Simon’s hands clasped his own  mouth, his body pinned to the wall by Grace’s own body, and back arched and ass out.

 

”Sweetheart, I’ll won’t be able to finger you if you keep that slutty mouth of yours closed.” Fuck, Simon’s ass swayed from that comment. His hands left his mouth and faced the wall. Two fingers slipped inside his mouth and he sucked on them greedily. They stayed in there for a few moments before Grace took them back out. Then two fingers slid easily into Simon’s entrance and sluggishly circled the walls. 

“Grace! Mmpph, deeper, please…!” Simon moaned but he knew it wouldn’t do anything. He looked back a bit, to see Grace stroking himself with his other hand.

 

“Shhhhh. Gotta concentrate.” Grace kept stroking.

 

”Please?” Simon asked in a pleading tone.

 

”Hmmmm, I don’t knowwww…” Grace dragged the last part out. Simon whined as one of the fingers were taken out, leaving him with only one. “Maybe if my adorable slut begs, then maybe…”

 

Fuck Simon’s dignity. Or what he had left.

 

”Please, please, please-! I’ve been a good boy, yeah?” He was about to continue until he felt his pussy get spanked. The surprise of it caused him moan a little louder than he’d expected.

 

”Good boy?” Grace leaned in to his ear, “You started playing with yourself, without me.” He slapped his ass instead, a red mark instantly staining it. It hurt and felt good at the same time. “Not such ‘good boy’ behavior…” He mumbled and spanked his pussy again, gaining a twitch in Simon’s hips. This Ryland Grace was different from the shy one, and Simon already liked its overpowering and in-control attitude.

 

”I-I can still be a good boy! Just, lemme show you and- ah!” The last finger retreated out of his pussy and three came into in his mouth. He sucked faster on them, missing the feeling of being full.

 

Again, a finger shoved into him, a moan, then two more after. Simon almost howled out in pleasure, but hid his mouth.

 

”Fine. One more chance, but,” Grace stopped and Simon felt a finger poke at the hands hiding his mouth, “I want to hear you, or else.” He demanded.

 

Simon easily folded under pressure and his moans were exposed to the whole world again.

 

”Mhm, Graace, GRACE!” He both screamed and moaned as Grace’s cock find its way into Simon’s anus. His ass-cheeks spread by only one of Grace’s hands. Simon felt even more stimulated as three fingers thrusted against his g-spot while a cock fucked itself into Simon’s ass. The sound of skin against skin and moans from both Simon and Grace were the only sounds in the bedroom. The smell of honey almost extinct, yet flooding Grace’s nose. Not long after fast and quick thrusts did they came. Their faces flushed red and Simon was sure his heat was over now.

 

Simon got scared for the second that he was lifted into Grace’s arms until he dropped them both down on the bed, sprawled all over and drenched in sweat and cum scented them.

 

”I’m tired now.” Simon admitted, his body feeling limp and as if he couldn’t walk tomorrow.

 

Grace’s eyes darted left-to-right and Simon was about to ask what the hell he was thinking until Grace finally asked, “…mmm…. can you at least answer my other questions?” Grace asked in a pleading tone.

 

”Hmmmmmmmmmmmm, nope.” Simon replied, popping the p.

 

Simon closed his eyes and fell asleep instantly.

Notes:

let’s not talk about simon moaning “grace” 11 times

anyways you can tell i got lazy towards the end and shit cuz yk i think i forgot all about the omega shit and yeah but uhhhh ig i do lowkey owe you guys from the “use me, i’ll be good, please” fic where i made a joke about them having crazier sex in the shower and now i gotta write a shower sex fic…

i sooooooooooooooooooooooooooooo need a nap (and praise too)

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