It’s About Time - alpha!Peter x omega!fem!reader (18+)
Peter finally presents. and the team is...surprised?
Peter is an adult in any and all content that I write.
warnings: a/b/o dynamics, sort of dubcon, heat/rut, alpha!Peter, p in v, unprotected sex (be safe friends), knotting, technically breeding kink.
Please please please don’t just hide this in your likes.
A super quick porn without plot.
Minimal editing done, proceed with caution.
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Peter Parker was easily one of the sweetest members of the Avengers. As soon as you had found a home with the group of international (intergalactic?) misfits, Peter had been the first to show you around. Being an omega, you found his company comforting. Peter was a late bloomer, and hadn’t presented yet. His kind and nurturing instincts pointed towards Peter being an omega himself, maybe a beta, and to you and the other omegas on the compound it was nice to have a male omega around. It hadn’t occurred to anyone that Peter would present as an alpha...
When it happened Peter had been sweating all day. His normal upbeat and goofy demeanor had been interrupted by waves of dominant, nearly aggressive energy. You had heard rumors about Peter’s behaviour, but didn’t believe it until you were stood outside his door, the scent and power of an alpha mixed with his familiar warmth radiating through his bedroom door.
Your eyes widened and you felt practically smothered by him when Peter ripped his door open. His eyes were bloodshot and wild, his gaze racing up and down your body and causing an instinctive heat to bloom between your legs. You saw Peter tilt his head upwards just slightly and inhale. He could smell your arousal.
“Omega” he growled, but the voice wasn’t entirely his own. You knew that it was his hindbrain talking, but hearing your friend identify you as he did made you whimper, pressing your thighs together tightly.
“A-are you okay?” you squeaked out, trying to remember why you came to him in the first place. He hummed happily at your concern, before turning serious again.
“Need you to go y/n. Not gonna be able to hold myself back much longer. Not with that sweet pussy crying out for me like she is.” Peter groaned, his eyes rolling slightly at his own mention of your body.
You reddened from head to toe, not used to hearing Peter use such crass language, especially about a woman. But you felt your arousal dampen your underwear, Peter’s rut starting to effect your own cycle and chipping away at your rationale.
When you didn’t move Peter let out a final warning. A deep rumble in his chest that seemed to ignite something in you. Your hindbrain answered with a whine and Peter licked his lips before taking your arm and tugging you into his bedroom.
You gasped when you were tossed onto Peter’s bed, the sheets overwhelming your senses with the musky scent on them. Peter hadn’t been wearing a shirt, previously distracting you from the fact that his hard cock was clearly outlined against his grey sweats. But as you propped yourself up on your elbows, Peter looming over you, you couldn’t help but stare at the strained fabric.
“Clothes off.” Peter commanded, his tone absolute.
Your body moved on its own, responding to his alpha command. His eyes widened slightly as he realized the power of his new presentation and cleared his throat, before, in a gentler tone told you get on your hands and knees.
“Present, sweet y/n.” Peter murmured, running the slick head of his cock up and down your slit. Your thighs were wet with arousal, and you gasped every time Peter’s dick caught at your entrance.
Both operating on instincts alone, you whined when Peter started to push inside you. He groaned loudly, swearing about how much better you were than his hands earlier.
“Never felt this good before.” Peter muttered, getting lost in the sound of his wet thrusts. But you were sure he was simply thinking out loud. Even if he hadn’t been you couldn’t form a response between short gasps for air and whimpers.
You cried out as he deepened his strokes inside you and he practically roared in response, snapped out of his trance at the broken sounds of pleasure you gave him.
“That’s it. Fuck. Squeezing me so tight. Such a good omega.” Peter grunted, snapping his hips against your ass. If it weren’t for his grip on your waist, his movements would have been fucking you into the mattress below you. Not that you would mind.
You keened at the praise, feeling more and more of your slick drip out of you, and splattering across your thighs as Peter pumped in and out of you. Your hips had started to grind back in time with his thrusts.
“Gonna take my knot too? Think you can handle it?” he purred, and you felt the base of his cock starting to swell. You whined as it became harder and harder and harder for him to fill you completely.
“Gotta decide y/n.” Peter told you through gritted teeth, giving you one final chance to escape his feral desires. Despite the rational part of you screaming in protest, you pushed your hips back onto his cock, lowering your shoulders so you were spread open further for him.
Peter moaned at the sight of you, grinding into your puffy cunt before thrusting into you as far as he could go. You whined as his knot entered you more and more with each thrust, until the head of his cock rubbing against your cervix became too much, making you curse and moan into the blankets beneath you, surround by the scent of your alpha. You came with a cry of Peter’s name, your body trembling and cunt fluttering around him.
“That’s it, good ‘mega. Just like that. Gonna fill you up now, you’d like that wouldn’t you?” Peter panted, fucking you hard and fast until his knot had swollen so much that he couldn’t pull out of you.
“Please Alpha!” you cried, and Peter swore to himself that you’d never call him anything else again. Not now that he had claimed you. You moaned as Peter’s cock twitched, and with a rough shout he shot thick ropes of cum inside you.
You sighed happily as you felt the warmth of his release flood your sensitive walls, and all but purred as the intensity of the moment started to fade, leaving you nearly delirious with Peter inside you.
Peter smiled at your loose form, doing his best to adjust your bodies so you were laying on your sides. His head was starting to clear, the overwhelming pressure and haze of his rut dulling enough to think, thanks to you. He tucked his face into the crook of your neck, scenting you formally and making you moan.
“Mine.” he muttered against your skin. You nodded blindly, instinctively tilting your head and giving him more access to your throat.
“I’m serious y/n. You’ve always been one of my favourite people and now I know why. You were meant for me.” Peter continued against your skin and ground his hips against yours to prove it, pushing his cock against your swollen walls and making you moan.
He licked at sucked at the tender flesh of your neck, leaving a deep bruise where his bite could have been.
“Gonna keep you full of me from now on.” Peter made one more promise as you felt yourself start to drift to sleep, safe in Pete’s arms.
