Despicable Adult but Who Could Resist?

Winner of the Term 2b Fic Poll! The winning theme was 'Pro Hero Ground Zero/MS!Deku Breeding'. 

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He was a terrible adult. Repugnant, despicable, horrid…and whatever other big words that meant ‘bad’. Yet, despite knowing that what he was doing was right up there with one of the worst things he could do to an Omega, there was no thoughts of stopping in his pleasure hazed mind. Clinging tightly to the tiny, trembling Omega’s hips, droplets of sweats dripping off his jaw to plop down onto his smooth belly, Bakugo kept his gaze trained on the Omega’s stupidly adorable face, drinking in every gasp, every moan, every mew as he pounded into his tight, previously virgin, slick drenched hole. Pleasure, intense and scathing, pulsed through his nerves, turning every inch of his body into a loud hum of ecstasy. The most incredible, sweet scent was rolling off the little Omega in waves. Was this his first heat? Had he just forgotten to take his suppressants (as was normal with first heats – inexperienced Omegas often hadn’t determined what their beginning signs were) or had he purposefully didn’t take them (not as normal but it did happen)? Either way, he highly doubted that this cute little Omega had thought he’d end up like this…pinned underneath an Alpha who was significantly bigger than him, fucked hard enough to make him bounce on the smooth, tiled floor. 

Though, honestly, this wasn’t how he expected his day to go either. His fucking day off…and he wound up running straight into this adorable little Omega right as his heat was starting to take hold. That trembling, feverishly burning body collapsing into his arms; those bright eyes, burning with a want that this kid couldn’t possibly understand; his brightly flushed, round, freckled face that wore an expression he’d only seen in porn and that scent…that fucking scent – who could blame him for losing control?! The Omega gasped sharply, violently shuddering underneath him. His thin hips strained off the floor, plump cock twitching, and came, spraying another load of jizz on his already drenched stomach. His already tight hole clamped down even harder, squeezing him with such strength, it was nearly painful. Choking out a ragged, grating moan, Bakugo slowed down the pace a little, lengthening his thrusts to make this little Omega feel every inch of his cock as it slipped in and out of his spasming hole. 

Did it feel good? Judging by how many times this Omega had cum in the short time they’d been doing this, seemed like it. Watching him being made to feel so much pleasure from being fucked by him…it ramped the heat up even further. It was such a bizarre thing…Omegas usually never even phased him. If anything, they were a nuisance – always smelling so good, luring him in, distracting him from his job, his dream. Normally, he was irritated by them. He went out of his way to avoid them, especially when they were in heat. In the past, he had had a more than a handful of experiences where Omegas who were drawn in by his Pro status purposefully thrown themselves at him when they were heat in the desperate attempt to make him claim them. Common occurrence, unfortunately but there was no way in hell that he’d be affected by such extras. 

This little Omega, though…it obviously wasn’t an effort to entrap him. Damn kid hardly seemed to understand what was going on. When he first pushed him down, he resisted at first – granted, it had been a weak, nearly nonexistent fight but he’d still panicked a little, looking up at Bakugo with the obvious question of ‘what are you doing?!’ in those bright eyes. No, this wasn’t an attempt to try to get him to claim it. It was an accident, a coincidence…one that was showing him that he wasn’t as impervious to Omegas as he thought. What was it about this one? Was it because he was so stupidly cute? Just infuriatingly, maddeningly adorable? Was it how good he smelled? Or was there something else that was drawing him in? Ah, fuck, he couldn’t think straight. It felt so fucking good. He’d fucked Omegas in the past (got to get his relief as an Alpha somehow) but none of them had felt anywhere near as good as being inside this one. He…he couldn’t get enough of it. The more he fucked him, the more it felt like he was submitting to his primal, feral instincts. 

The urge to bite was gnawing at his foggy mind. He could see the tantalizing curve of the boy’s shoulder, practically screaming at him to leave it marked with a bright red bite mark. Even stronger than that was the need to impregnate. A gorgeous, fertile Omega was lying underneath him. Only made sense that he’d want to pump him full of his seed until his scent subtly changed, indicating the slight change in his body’s chemistry. God, fuck, he wanted it so bad. He wanted it so fucking bad! 

There came a soft sob from below him. Bakugo froze, a bucket of cold pouring into his stomach. His eyes widened. His breath caught in his throat. The little Omega pressed his loosely curled fists to his eyes. Tears streamed down his flushed, round cheeks. His chest hitched with erratic, hiccupping sobs. Horror roared through him. Fuck…fuck-! Was he too rough?! Had he hurt him?! Fuck, fuck, he needed to-!

“I’m sorry.” The little Omega gasped weakly, “I’m sorry! I’m sorry! I’m sorry, Ground Zero-san!”

He moved without thought, dropping down to gently cup the Omega’s face, “No, no, shh, shh, it’s okay. It’s okay. You don’t have anything to be sorry for.”

“I’m sorry-!” The Omega wailed softly, “You-! I’m sorry, I’m so sorry. I didn’t mean to-! I thought I had-! I’m sorry, I’m sorry!”

“Shh,” Bakugo cooed, pushing in closer to sweetly kiss the Omega’s burning hot, soaking wet cheek, “I know, I know, it was an accident. You didn’t do anything wrong.”

The Omega sucked in several harsh, rapid breaths then gasped, “I’m sorry…I’m sorry…I tried to tell you but it felt so good…I’m sorry…I’m sorry…”

“Tell me what?”

“Quirkless…” The little Omega trembled harshly underneath him. Sobbing, he craned his head away from Bakugo, tightly curling his upper half, “I’m quirkless! I’m sorry! I’m sorry! Please-!”

Bakugo blinked once, twice then sighed heavily, his shoulders slumping. Relief washed through him, quickly overwhelming the terror he’d been feeling. Fuck, that was it? The kid was quirkless?! He thought he was going to say he was already claimed or something. Scrubbing a hand over his face, Bakugo took a moment to compose himself. Okay…okay, he could handle this. It was exceptionally rare for anyone to be quirkless in this world but not unheard of so what was with this reaction? Did the kid think he was going to freak out because he was quirkless? Well…going off the kid’s sobs, he guessed that was probably a stupid question to be asking himself. Letting out a slow, unsteady breath, Bakugo swallowed against the dryness plaguing his throat. He leaned down, slipping a large hand underneath the cheek pressed to the tiled floor and very gently maneuvered his head around so he was looking up at him. Those big, teary eyes nervously met his gaze. 

…fuck…this goddamn fucker was so goddamn cute. He…he couldn’t resist him-! Closing the small distance between them, Bakugo gently brushed his lips against the little Omega’s in a soft, gentle kiss. The Omega inhaled sharply, his eyes widening even further. Bakugo searched his flushed face for a moment to see if he could find any signs of that the little Omega wanted him to stop. When he could find none, Bakugo brushed the pad of his thumb over the smooth curve of the Omega’s cheek and pushed in, capturing those plush lips in a firmer, stronger kiss. At the same time, he started to move again, thrusting hard into that tight, wet hole. Bakugo hungrily swallowed up all the moans and mews that began to pour out of the Omega. Sweet…fuck, the kid even tasted amazing! His mouth was small, smooth and delicious. Pushing his tongue between his plush lips, shivering when the Omega dizzily sucked on it, Bakugo came to a blunt, honest realization: this Omega was his. Didn’t understand why or how he ended up like this but no way in fucking hell was he going to let him go. Never would have thought that he’d claim an Omega – too much trouble, not enough reward – but here he was. 

Pulling away from the kiss with a harsh breath, Bakugo offered a wide, smirking grin, “Your name.”

“I-Izu-Izuku!” The Omega panted, clinging to the front of Bakugo’s shirt. Something had changed…that hesitation, that nervousness had disappeared, replaced by a naked, honest, burning want. The way Izuku was looking up at him…begging, pleading, desperate for something they both wanted…fuck, it drove him fucking crazy. His body was on fire. His brain felt like mush. His cock was melting. He had never felt this good before. 

“Izuku…” Bakugo breathed happily, blood roaring in his ears, “You wanna be mine, Izuku?”

Izuku’s eyes widened. His breath audibly caught. He gawked up at Bakugo for a moment then his face screwed up. Chest hitching with a hard sob, fresh tears leaking out of the corners of his eyes, he nodded shakily. A trembling smile spread across his flushed face. A bright spark of happiness burst to life in those watery eyes. His thin fingers curled even tighter into the front of Bakugo’s shirt, not pulling him but anchoring them together. Staring down into that expression of sheer relieved joy, Bakugo could resist surging back down to kiss him again. Moaning softly, Izuku wrapped his slender arms around Bakugo’s shoulders, pulling him in even closer. 

Fuck. 

Fuck, fuck, fuck. Oh, fuck, he was done for. He was 100% done for. This Omega was going to be his fucking undoing and he was going to gladly welcome every single moment of it. So this…this was what other Alphas meant when they talked about being finding the Omega who was meant for them. He could never understand it before. An Omega who was meant for him? What schlock…or so he thought until just now. What else could this be, if not two souls who were meant for one another finally finding one another? Izuku…was meant to be his Omega, and he was meant to be his Alpha. Hungrily, thoroughly kissing his Omega, Bakugo quickened the speed of his thrust, roughly pounding into him. Cum…fuck, fuck, he was gonna cum. He was gonna cum! Wrenching away from the kiss, Bakugo moved down further, stretching his mouth open wide to chomp hard on the curve of Izuku’s neck. His teeth sunk through the soft flesh, easily splitting the skin. A burst of sweetness, tinted with copper, flooded across his tongue. An intense, overwhelming, devastating ecstasy rushed out from the base of his belly. He forcefully rammed his hips forward, thinking of nothing else than forcing his knot into that tight hole. It took a little bit of pushing but with some persistence, he shoved his way in, effectively sealing off Izuku’s entrance as he flooded his insides with a heavy load of cum. 

Underneath him, Izuku squealed and wailed, his small body shuddering violently. His small, plump cock spasmed and twitched against Bakugo’s belly. His legs curled tightly around Bakugo’s hips. Eyes heavy lidded and hazy, Bakugo dragged his tongue across the fresh bite mark, gleefully noting how gorgeous it looked against Izuku’s pale, freckled skin. Trailing a line of kisses along the line of Izuku’s soft jaw, Bakugo mumbled, “Mine…you’re mine, Izuku…mine…”

“Yes…” Izuku gasped happily, nuzzling against him. 

This wasn’t anywhere near how he expected his rare day off to go…but wasn’t like he was complaining. He was definitely going to hear an earful for claiming a kid. That, though, was something he’d worry about later. Right now, he was more concerned with getting him and Izuku back to his apartment so they could go a couple more rounds…just to make extra sure that Izuku got pregnant.