Work Text:
Katsuki unlocked the door and entered his house, which he shared with his spouse, Izuku. Upon arrival, he was immediately greeted with his husband wrapping his arms around him and happily saying “Welcome home, alpha,”
This had all started when just a day ago, Izuku and Katsuki were cuddling on the couch, but suddenly, Izuku opened his mouth. “Hey, Kacchan,” He murmured, which made the blonde cock his head in response. “Hm?”
“Eh.. This is embarrassing…” Izuku mumbled, his face turning pink. “Uhm– Would you be okay with.. Roleplay? Like– Alpha, Omega stuff—?”
“Izuku, that’s stupid.”
Izuku frowned and looked away with embarrassment, before whispering, “So you wouldn't like it if I called you alpha?”
When Izuku said that, Katsuki realized that maybe he’s into this.. “... I might like it,”
“Hm.. Omega? Smells like you’re in heat.” Katsuki said with a smirk, reciprocating the hug and leaning down a bit to bury his nose in the crook of Izuku’s neck.
Izuku immediately played along, whimpering softly in response. “Mhm, I’m in heat, and I need an alpha to take care of me.” He whined, squeezing his thighs together.
In response to this, Katsuki carried Izuku to their shared bedroom, kicking open the door and throwing Izuku on the bed. Izuku let out another whimper, “Hurry up, alpha!” He exclaimed, looking at Katsuki with those damned bedroom eyes.
Katsuki groaned, feeling his cock stir to life. “Be patient, you damn greedy Omega.” Katsuki ordered, taking off his gauntlets and placing them on the floor. He then opened up the nightstand drawer to grab a bottle of lube.
Izuku squirmed around on the bed, ever so desperately wanting Katsuki’s cock. It’s almost like Izuku was really an Omega in heat.. With the way he squeezed his thighs together, his cock straining against his shorts, throbbing, leaking with pre-cum.
Katsuki started to slip off his gloves, tossing them to the side before looking at a very aroused Izuku who was slipping off his shorts and underwear, leaving his bottom half bare and exposed. Katsuki snickered in response to this. “Horny little freak.” He teased. (As if he wasn’t a horny little freak himself)
“Stop teasing me, Kacchan,” Izuku pleaded, brows furrowed as he looked up at Katsuki who was squirting some lube onto his fingers, rolling his eyes as he did so.
Katsuki lowered his hand to rub his slick fingers against Izuku’s hole before he pushed the digits inside, earning a moan from the green-haired man. Katsuki couldn’t deny it, this whole thing was hot — really fucking hot. I mean, it wasn’t all too different from their regular intercourse, but—
“A-Alpha..”
Katsuki couldn’t help but let out a low groan at the sound of that word falling from Izuku’s lips. That’s it. THAT was his favorite part about this whole Omegaverse roleplay thing. Being called ‘Alpha’ and the way it made Katsuki feel so.. In charge. He loved it.
Buuut he had to stop thinking about himself for a minute, and started to slowly thrust his fingers in and out, working the sweet omega open, getting him ready for Katsuki’s member.
Once he was done with that, he slowly pulled out his fingers, watching Izuku shiver and squirm under him. “Mmfph…. I need an Alpha- I need Kacchan!”
“Fuck- Gimme a sec, Omega.”
Katsuki hurried to pull out his cock, it was big, erect, leaking with pre-cum, and throbbing. Hard. All for Izuku and Izuku alone. He started to squirt some extra lube on his length, stroking it to make sure it was all slick before he pressed the tip against Izuku’s hole, pushing the length past the ring of flesh, and fuck, it felt amazing.
Katsuki started to rock his hips back and forth, listening to Izuku’s each and every whimper and whine. “You’re such a sweet omega, such a perfect little thing,” Katsuki cooed in Izuku’s ear. This made Izuku let out a moan, sure, Katsuki had given him compliments before, but this one made his cock twitch.
“Mmhm, thank you,”
Izuku reached around to grip at the back of Katsuki’s top, squeezing the fabric of his hero costume as Izuku squeezed his eyes shut with pleasure. Katsuki started to pick up the pace of his thrusts, he was pounding in and out of the hole. The perfect hole that belonged to his perfect husband, who just so happened to be playing the role of a perfect omega.
Katsuki gripped Izuku’s hips, before he growled in Izuku’s ear. Just.. a growl, like a feral animal. “Mm, De- ‘Zuku, call me Alpha again,” He ordered, his brain going fuzzy, like he absolutely NEEDED to hear Izuku call him that again or else he would die.
“Alphaaa..!”
“Fuckin’ hell– Omega.. Wanna– Wanna mark you,”
Izuku tilted his head back to give Katsuki better access to his neck. “Please alpha, wanna be yours.” He breathed. Katsuki almost immediately bit down on Izuku’s neck, it made him bleed, and Izuku winced at the stinging sensation, but holy shit, this was the hottest thing to ever happen to him. He let out a loud moan, immense waves of pleasure taking over his body, making his body shiver as cum spilled out onto his stomach.
Katsuki thrusted into Izuku a few more times until he also had his orgasm, slamming himself deep inside of Izuku, pumping him full of cum. “Fuck— C’mon, get pregnant, get pregnant, get pregnanttt, needa breed you, needa pump you full of my puppies,” He growled, his eyes rolling to the back of his head.
Katsuki slowly pulled out, both his and Izuku’s bodies shuddering at the feeling.
“Mm.. That was so good, Kacchan,”
“Amazing… I hope you’re pregnant with my puppies now.”