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Burning Heat: Alpha's Restraint

### Chapter One: Fevered Beginnings

The small, cozy confines of Izuku Midoriya’s apartment were a shrine to heroics—walls plastered with All Might posters, shelves cluttered with action figures, and a faint, sweet scent of omega pheromones hanging in the air like an unspoken secret. Izuku sat curled on his worn-out couch, a throw blanket draped haphazardly over his lap, his fingers drumming restlessly against the armrest. A hero documentary blared on the TV, some overly enthusiastic narrator droning on about Endeavor’s latest exploit, but Izuku couldn’t focus. His skin prickled, a slow, creeping heat unfurling in his core, making his breath shallow. The first waves of his heat were hitting, and no amount of distraction could smother the need simmering beneath his flushed skin.

He shifted uncomfortably, muttering to himself, “C’mon, focus, Izuku. It’s just a documentary. You’ve got this. You don’t need—ugh.” His voice cut off as another wave rolled through him, his fingers digging into the couch cushion. He was a mess already, and he knew it.

The door to his apartment slammed open with all the subtlety of a grenade, the sound jolting Izuku upright. Katsuki Bakugo stormed in without so much as a knock, his presence a tidal wave of raw alpha energy. The sharp, heady scent of burnt caramel and something dangerously primal hit Izuku like a freight train, nearly knocking the air from his lungs. Katsuki stood there in a black tank top and jeans, his crimson eyes glinting with irritation and something darker, his spiky blonde hair as wild as his demeanor.

“Oi, nerd! You didn’t answer my damn texts!” Katsuki barked, kicking the door shut behind him with a booted foot. His voice was rough, but there was a sharp edge of concern buried beneath the gruffness.

Izuku’s head snapped toward him, green eyes narrowing even as his body trembled under another wave of heat. “Ever heard of knocking, you blonde barbarian?” he shot back, his voice sharp but wavering, betraying the storm raging inside him. “Some of us like a little warning before an alpha tornado tears through their door!”

Katsuki smirked, leaning casually against the doorframe, arms crossed over his broad chest. The bastard looked entirely too smug for Izuku’s liking. “Tch, look at you, whiny little nerd. Can’t even handle your own heat without turnin’ into a damn mess, huh?” His tone was mocking, but his eyes darkened, pupils dilating as Izuku’s scent hit him full force. Hunger flickered across his face, raw and undeniable.

Izuku’s jaw clenched, and he pushed himself to his feet, determined to assert some semblance of control. “I’m handling it just fine, thanks,” he snapped, though his legs wobbled beneath him, the heat sapping his strength. He took a shaky step forward, only to stumble, his vision swimming.

Katsuki moved in a flash, closing the distance between them with predatory speed. His rough, calloused hands gripped Izuku’s arms, steadying him before he could hit the floor. He yanked Izuku close, their chests nearly colliding, the heat of Katsuki’s body searing through the thin fabric of Izuku’s shirt. “Careful, idiot,” Katsuki growled, his voice low and gravelly. “You’re gonna hurt yourself actin’ all tough.”

Their faces were inches apart now, Izuku’s breath hitching as he glared up at the alpha towering over him. “Maybe if you didn’t barge in with your stupid alpha ego, I wouldn’t have to act tough,” he muttered, but the words lacked bite, his voice trembling as another wave of heat pulsed through him. Katsuki’s scent was everywhere, overwhelming, making his head spin.

Katsuki’s grip tightened, his lips curling into a dangerous grin. “Keep talkin’, nerd. See where that smart mouth gets ya.” His tone was a low rumble, laced with something possessive, something that made Izuku’s knees weaker than they already were.

Before Izuku could muster another retort, Katsuki was moving, dragging him toward the bedroom with a firm grip on his arm. “C’mon, I’m not lettin’ your stubborn ass suffer out here alone,” he muttered, his voice rough but heated, the alpha in him clearly itching to take over.

Izuku dug his heels in—or tried to, anyway. “Hey, I didn’t ask for your help, you pushy jerk!” he protested, though his fingers instinctively curled into the fabric of Katsuki’s tank top, clinging despite himself. His heat was unraveling his defiance faster than he could rebuild it, and being half-carried, half-dragged by Katsuki wasn’t helping.

They stumbled into the bedroom, the small space dominated by a messy bed and the lingering scent of omega need. Katsuki didn’t hesitate, shoving Izuku onto the mattress with just enough force to make him bounce slightly. He loomed over him, hands on either side of Izuku’s hips, crimson eyes burning with intensity. “Stop squirming, idiot,” he barked, though there was a rough edge of restraint in his voice, like he was holding himself back.

Izuku glared up at him, even as his body arched instinctively toward the alpha’s heat. “Stop bossing me around, you overgrown bully,” he shot back, his voice breathy but sharp. Another spike of heat hit, and his glare faltered, his lips parting as he struggled to keep his composure. “Hurry up, you slowpoke alpha. Or are you all bark and no bite?”

Katsuki’s laugh was rough, dangerous, sending a shiver down Izuku’s spine. “Oh, you’re gonna regret that, you bossy little omega,” he growled, one hand shooting up to pin Izuku’s wrists above his head with ease. His other hand roamed lower, teasing along Izuku’s side, igniting every oversensitive nerve in its path. “Keep runnin’ that mouth, see what happens.”

Izuku bit back with a shaky insult, his voice trembling as Katsuki’s touch sent sparks through him. “You’re such a dumbass with no game, Kacchan. All this posturing and—ah!” His words dissolved into a whimper, his body betraying him as Katsuki’s fingers brushed a particularly sensitive spot.

“Tch, who’s got no game now, huh?” Katsuki taunted, his smirk widening as he watched Izuku squirm beneath him. Clothes started to disappear, shoved aside with impatient hands, the air between them crackling with tension. “Look at ya, all needy and desperate. Thought you were handlin’ it just fine, nerd?”

Izuku’s cheeks burned, but he managed a glare through the haze of heat. “You’re all talk, Kacchan. Prove you’re not just a loudmouth for once,” he fired back, his voice dripping with challenge even as his body arched into Katsuki’s touch.

Katsuki’s alpha instincts roared to the surface, his voice dropping to a husky growl that made Izuku’s breath catch. “Oh, I’ll take care of ya, don’t worry. But you better behave, nerd, or I’m gonna make this real slow just to mess with ya.” His hands tightened on Izuku’s wrists, his gaze predatory, promising both torment and relief.

Izuku trembled beneath him, the heat consuming every shred of resistance he had left. His green eyes flickered with defiance one last time, his voice barely a whisper as he muttered, “That annoying smirk of yours is gonna get you in trouble, Kacchan.” But the words were empty, his body surrendering to the overwhelming need as Katsuki’s presence enveloped him, setting the stage for something deeper, something inevitable.

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