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Izuku felt it, pacing back and forth in his dorm room while anxiously holding his phone in his hand.
Today started fine for him, between classes, fight training, and an unexpected test from Aizawa that he knew he personally aced.
But it wasn't until a little after dinner and showering when he felt his stomach get queasy. He brushed it off, deciding it was nothing and pulling out some books to study from. Then the sudden wetness hit him like a brick, feeling sticky and nervous.
The tempeture in room started to feel unusually hot, Izuku anxious while taking deep breaths as soon as the ceiling started spinning. Right then and there, he knew his heat had unexpectedly arrived.
Except he wasn't entirely sure why.
He kept a tracker and was confident that he wasn't due for his heat for another three weeks. So why now of all times on a random Monday afternoon did it suddenly decide to show up like an unwanted ex?
A knock jolted him from his anxiety riddled thoughts, quickly moving towards the door to open it.
“The fuck do you want this late at night, nerd?”
Izuku smiled because seeing Katsuki was like a tall refreshing glass of water. And he smelled divine like usual, wearing a tight black tank and black sweats to match, looking absolutely edible.
“You texted me it was an emer–”
Katsuki took a deep breath, his pupils dilating into slits for a moment before returning back to normal. Izuku would be embarrassed by the hormonal smell, but at the moment he needed cuddles and attention from his comfort person.
“Are you in heat right now? Where the fuck are your scent patches idiot? You're not due for another few weeks I thought.” Katsuki angrily hissed at him, looking up and down the hallway before glaring at Izuku.
“I know Kacchan, but m-my heat started a few weeks earlier than expected, and I don't know what triggered it. And if I go to a hospital the sterile smells and being alone in a dark room might make it worse.”
“Okay, so what do you want me to do about it?” Izuku nervously chewed his bottom lip before answering.
“I need to be t-touched by someone I trust right now. And not like that, we don't have to do anything crazy! It'll be just like the last few times, I promise. I just want to be held by someone I lo–c-care about and feel safe with.” Katsuki raised a blonde eyebrow.
“And so you texted me to do what exactly? Cuddle you? Because I'm not doing that pussy shit again–”
“Please? Please, please, Kacchan, I need you.” He begged, feeling his eyes gloss over. Izuku knew he sounded pathetic, but he wanted Katsuki specifically for some odd reason. And they were friends now, best friends if he wanted to push their title a bit more.
He craved Katsuki desperately, hoping the blonde would cooperate.
Another harsh wave of nausea rolled over him, making him stumble. He almost lost his balance but Katsuki caught him before he could hit the ground.
“Shit Izuku, come on, let's get you on the bed.” Katsuki easily lifted him up into his strong arms, shutting the door with his foot before taking them to the bed.
Softly, he placed Izuku on the mattress before walking over to open the balcony door, the cool autumn breeze swirling into the warm room. Katsuki left to go into the bathroom, Izuku faintly hearing the sink turn on. His clothes felt like they were sticking to his skin, sweaty.
Hot.
The temperature of the room was ablaze against his skin. And Katsuki came back with a cold rag, placing it on Izuku's head and face, but I wasn't helping.
The taller male slid onto the mattress to lay next to Izuku, the A/C kicking in along with the cold from outside filtering around the room. But it still felt like a furnace, Katsuki petting his head and pumping calming pheromones to help Izuku.
To some degree this was aiding him, Katsuki's sweet caramel scent altering his brain chemistry. Because after he shared his first heat with Katsuki over a year ago, he physically couldn't bring himself to ask anyone else to be with him when he was like this.
And being with Katsuki just felt right.
He cuddled into the blonde, wrapping a hand around his thin waist and sniffing his sweet aroma. But his nose caught a whiff of something stronger, pupils turning into slits and his fangs growing.
His brain started screaming at him to find the source of the mouthwatering fragrance that was emitting from somewhere. Clutching onto Katsuki, his nose was filled with a spicy cinnamon smell, something calling to him that was making his inner omega feral.
“Hey Kacchan?” He said shakily, his mind growing dizzy from primal instincts and arousal.
“What?”
“You're not mad or something are you?” That could be the only logical reason why Katsuki's candy-like scent was turning into a stronger, spicier fragrance.
“No, why?” Katsuki raised an eyebrow at him.
“Are you sure there isn't something wrong with you?” Why did Katsuki smell so heavenly? Izuku took another big whiff, his whole body shuddering.
“I said no, is something wrong with you, Izuku?” Yes, something was definitely off and Izuku was becoming delirious from it.
“Dunno, suddenly you smell really strong.” He hiked his body up higher, balling his fist into Katsuki's tank and moving his face further up.
“What the fuck?” The smell was getting stronger, Izuku running his nose along the side of Katsuki’s body until it stopped at his armpit, inhaling deeply, mouth watering.
The scent was very concentrated here.
”Hey, get off! What the Hell has gotten into you?” Katsuki grabbed him by his curls, trying to remove Izuku from him, but it turned the freckled omega on even more, purposefully doubling his body weight with OFA.
Katsuki tugged his hair again, “What the fuck do you think you're doing, get off!” Izuku didn't move, nudging Katsuki to open his arm.
“Seriously, what's your damn problem, nerd?” Katsuki tried to push him away by the shoulders this time, but Izuku was too stubborn and wouldn't budge.
“Kacchan, you smell so good right now.” The tall beta tried to scoot away, but Izuku held him in place, prying his arm open.
“W-What?” Red eyes watched him, curious and nervous.
“Well, more than usual.” The smell of Katsuki’s sweaty armpit sent him into a trance, that spicy scent making his pupils dilate like a cat as he stuck out his tongue. Without thinking he dived in, giving his underarm a strong lick that made Katsuki visibly shiver against him.
“Dek–Izuku…ah!” The blonde pathetically whined, Izuku unconsciously rubbing their growing erections together, both moaning loudly.
Oh Katsuki was delicious, sending Izuku's inner omega into a frenzy. He licked at it again again, careful not to graze Katsuki’s skin with his elongated fangs. Katsuki's sweat tasted sweet like candy, due to his quirk and the nitroglycerin. It was like a drug and Izuku couldn't get enough, feeling addicted.
“S-Stop it right now…” Katsuki said weakly.
No.
Izuku moved his head away from his underarm to lick the side of Katsuki’s flustered face, lapping at it like a dog while wrapping his scarred arms around his neck. The Beta's scent was spiked further, the scent spicy yet sweet.
“This is weird, you're also starting to smell like something.” Izuku said and tried to kiss his lips.
A hand grabbing his jaw stopped him, looking down at a panicked Katsuki. Red eyes hesitantly stared back at him, Katsuki's fangs out and clawed hands holding his chin in place.
The Beta started panting, using his strength to push Izuku off of him and sit on the edge of the bed. Katsuki held his head in his hand, taking deep breaths and fisting his shirt with his other.
“Kac–”
“Don't fucking touch me until you brushed your goddamn teeth. You just devoured my fucking armpit.” Izuku whined, crawling on his hands and knees to grab Katsuki.
“But Kacchan, I need you.” A wave of arousal ran down his body again, Izuku’s legs trembling.
Scarlet eyes turned to look at him, “Teeth, now. Then you can touch me.”
“Fine.” He frowned, letting Katsuki grab him by his arm to lead him to the bathroom. Even though Izuku would much rather be devouring him from head to toe, pouting the whole way across the room.
He grumpily stood in front of his mirror, flicking on the dim light and grabbed his toothbrush and toothpaste, turning the water on. The coldness did help to some degree, running his wrist in the water.
He didnt notice Katsuki’s eyes were changing as his nails and fangs grew behind him, unaware of what was about to happen.
Scrubbing his teeth and tongue, it took him a minute of trying to calm down before he looked up in the mirror and froze.
Katsuki's pupils were now fully slit like a snake, his warm hands sliding up until they settled on Izuku's hips. The bathroom suddenly felt small, Izuku bending over to rinse his mouth out with water and spit the mint foam into the sink.
But doing that placed his ass directly onto the large boner sticking out of Katsuki’s sweats. He almost dropped his toothbrush on the ground, gripping the counter when Katsuki grabbed his neck, his nose pressed against his throat and inhaling deeply.
A violent shudder ran through Izuku’s body, Katsuki’s hand on his hip pulling him in close so the Beta could sniff him. But oddly enough, Katsuki didn't even smell like a beta anymore.
He smelt and was acting like an alpha.
“Ka-Kacchan?” Izuku felt weak and wanted to fall onto his knees, his legs trembling.
Katsuki started grinding his erection into Izuku's cheeks before spinning him around so they could be face to face. It took Izuku by surprise when Katsuki stuck out his tongue to curl around his throat and suck aggressively at his pulse.
“Alpha!” Izuku sqeualed, his hands tangling themselves in blonde hair, lifting a leg up to wrap around Katsuki’s waist. Katsuki immediately grabbed the underneath of his thigh to pull him closer, rubbing their growing erections together.
They both moaned, Izuku feeling Katsuki’s fangs against his throat, ready for him to bite down. But instead Katsuki stopped, removing his face from his neck and panting hard.
Katsuki bumped their sweaty foreheads together, their eyes becoming twins while staring at each other intensely. A mutual understanding was said with their eye contact, and before they could blink, their lips met.
Izuku wrapped a scarred hand around the back of Katsuki’s neck to bring him in closer. He groaned in his alpha's mouth, softly sliding their hips into each other. The omega couldn't deny how he felt like he was bruning from the inside, hot like water boiling and about to spill over. Katsuki had him in tight hold, his lips soft, but his kiss rough, and Izuku loved every second of it.
“Wanna fuck you, mark you up and make you my Omega.” Katsuk whispered to him before moving his lips down to his neck again.
Katsuki’s clawed hand grabbed the collar of his shirt and ripped it clean in half. If Izuku was in his right mind he would have yelled at him, but instead he shrugged out of his torn favorite shirt.
He arched his back, opening his mouth to whine when Katsuki gently bit down and sucked that spot near his pulse. This felt amazing, his cock twitching when Katsuki bucked into him and started kissing along his collar bone.
“My Omega...” Katsuki growled, moving his warm tongue flicked at his adam's apple, sucking on it for a minute which made Izuku's thighs shake like jelly.
“Kacchan.” Izuku closed his eyes, pushing
Katsuki’s head into his neck when those lips gave the other side of his neck the same treatment. Marking, biting and sucking anywhere available that hadn't been touched.
The slow, aggressive kisses against his neck, along with the lingering touch of sharp teeth against his throat were driving him mad. Katsuki’s tongue licking into it and sucking with the beat of his pulse.
The room was so, very hot while Izuku tangled his fingers into his hair to twist, pull, whimpering from the sensation of this seductive torture of Katsuki’s mouth.
“W-Wait, Kacchan hold on.” The feeling of something sliding down his chest made them both pause. They looked down and Izuku felt his eyes grow wide.
He was leaking milk?
Izuku was shocked, watching the white fluid drip from his nipples and onto his shorts, down to the bathroom floor. Yes, his heats have been intense in the past, but never to this degree where he felt the need to nurse like a traditional omega.
A heavy spark of arousal rolled through his body, their gazes tied together as a fairly hard to ignore rising heat began swirling between the two. The room now felt like a furnace, Izuku unable to look away from those eyes.
Picking Izuku up by the back of his thighs, he wrapped his legs around Katsuki's waist, the alpha face to face with his chest. Katsuki didn't waste any time, latching his mouth onto one of his nipples and sucking hard, Izuku's eyes rolling back in pleasure. He never knew his nipples were this sensitive, the feeling of Katsuki physically sucking sweet milk from him absolutely sensational.
And Katsuki was hungry, keeping his mouth there for a few minutes until it felt like there was nothing left. He placed sweet kisses all over Izuku's chest, then moved his lips to abuse and lap at the other one. He was at his nub like an addict, Izuku whimpering from the sensual abuse of Katsuki’s skilled mouth.
Not too gently, he pulled Katsuki’s hair back enough to look into his eyes before kissing him, needing those lips on his. Katsuki kissed him back with vigor, his mouth making Izuku's eyes roll back and tilt his head so their tongues could lazily wrestle.
"I need you so badly, Kacchan, want your c-cock.” Izuku said, completely breathless.
Katsuki moved his hips, his clothed erection brushing against Izuku’s with just the right amount of pressure that made him gasp. The sudden friction had Izuku going cross-eyes, Katsuki squeezing the back of his thighs and placing him on the bathroom counter.
“Anything you want, Izuku, and it's yours.” They broke apart briefly just for Katsuki to dive back in to kiss his lips, deepening it, dragging his tongue skillfully everywhere he could in Izuku's mouth to dominate him.
Those hands roamed over his freckled thighs, tugging at his boxers. Izuku lifted his hips, letting Katsuki take them off in one go, completely naked as the day he was born. On a normal day he would feel shy about his body, but with the way Katsuki was looking at him like he was a full course meal, it made him horny.
Scarlet eyes slowly took their time to admire his scarred body, taking in his flaws and all. Those warm hands slid against his sizzling skin, tilting his head back to moan when Katsuki's fingers skimmed over his sore, leaking nipples.
Izuku gasped when Katsuki latched his mouth to one of his nipples again, taking his own shirt off and tossing it onto the floor next to Izuku’s clothes. Katsuki let his tongue flick out to play with the nub as Izuku let out a whimper, legs shaking.
“Keep your legs open for me Izuku.” The taller male commanded, urging Izuku to spread his thighs wide. And of course Izuku obeyed, stretching them as far as they could go for his alpha.
Emerald eyes watched him tonuge his lips, Katsuki slowly moving his head to and licking and sucking marks into his inner thighs, marking them up before staring at his leaking cock.
Katsuki leaned over him, one hand wrapped in green curls as they made out lazily, his other warm hand trailing down to Izuku’s hard cock. The hand wrapping around the length made Izuku jolt, but the gesture was welcomed. He shuddered when Katsuki swiped his hand over his slit, using his pre-come to smear over his dick and stroke it slowly.
"Sh-Shit, Kacchan." He whined to his alpha.
Izuku whimpered, feeling Katsuki smirk against him when he started to go faster, sneaking his tongue down the freckled male’s throat. Katsuki was skilled in many things, but his hands always made Izuku feel like putty, trembling from Katsuki’s handjob.
“That’s it Izuku, let me make you feel good.” The alpha whispered in his ear, reaching down to play with his balls before massaging his cock again.
“Y-Yes, Kacchan." He moaned out breathlessly.
Katsuki licked the shell of his ear, whispering filthy things to him like a siren. It was overwhelming, wrapping a scarred hand around the blonde’s neck to lock their lips together again. He was about to burst, feeling that tingly, warm build-up in his abdomen, so close to having that passionate release he’d been craving all evening.
Katsuki wrapped a strong hand around Izuku's waist, pulling him close then wound his fingers with fingers on those pretty green curls. He brought their lips together once more, Izuku's heart racing a mile a minute.
Stopping his handjob, he went back to raoming his hands all over Izuku. They both couldn't think clearly, and all he could do was touch Izuku's everywhere until he stopped at his thighs.
Katsuki cupping the under part where it was connected to his ass, and gave it a firm squeeze, a breathy moan coming from Izuku. He watched the way his thick lashes dipped as he turned his head into the kiss, his mouth hot, while his expert tongue ran along his teeth.
"Fuck, I've wanted you for so long Izuku." He muttered in between their hot make-out session. It's just something physical, right now. Just wanting to touch, accepting each other for who they were, scars and all.
"Me too, Kacchan." Izuku breathed out.
A moan, soft, needy, it made Katsuki kiss him slower, lazily, leading slant of lips with a flicker of tongue to tease more than anything, and then he drew back, lovingly looking up at Izuku through heavy-lidded eyes.
"You won't believe how long I've waited for you though, how much I wanna fuck you. I would do anything for you Izuku." Katsuki admitted fondly.
Inhaling took effort, his heart racing as he stared at his alpha. Izuku's mouth became dry and he jumped off the counter, knees on the floor while red eyes stared at him curiously. He slyly slid one of his hands up until it touched Katsuki's clothed erection through his pants.
Katsuki bucked up into him, a low groan leaving his lips. "Izuku, you don't have to do that.” Katsuki told him but Izuku watched him take a nervous, big gulp, realizing with sudden, breathless intent that Izuku was going to be the death of him.
Those lust-clouded green eyes never left his, his scarred hand toying with the string of his sweats. Izuku hands traced the curve of his ribs, tracing lightly on his rock-hard abs. Oh how Izuku wanted to strip every last layer off of him, see that tanned skin whole and unwounded, wanting to dig his teeth in and hold Katsuki still and take.
Taking them off in one go with his clawed hands, green eyes ogled the heavy dick in front of him. Katsuki's cock stood tall and proud while it slightly curved, veins all around it. He gently ran a hand along some of the veins, grinning when he felt Katsuki's length twitch because of his touch.
"You're so amazing, my alpha is big, so perfect." He kissed the dripping head, noticing Katsuki cheeks turning pink at the motion.
Wasting no time, he stuck his tongue out and grabbed the base of Katsuki’s dick, never breaking eye contact. Slowly massaging it from the tip then back down to the base as he licked the pre come from the dripping from the slit.
Katsuki surprisingly tasted good, very sweet with a hint of caramel which was probably because of his quirk. And just his luck, Izuku had a severe sweet tooth at the moment.
“Fuck, Izuku…” The omega to his cock out his mouth. He let out a dreamy sigh and flattened his tongue before swallowing Katsuki whole until his mouth was flush with his v-line.
He watched those red eyes widen with shock and amusement, nervous but excited to go down on him.
He grabbed both of Katsuki's hands to put them in his hair, wanting him to take control while happily slurping him up as Katsuki slowly thrust his hips into his mouth. The blonde almost seemed nervous, but Izuku squeezed his hips, encouraging him to be rougher.
Katsuki tightened his hands in those green curls, shoving his dick back into Izuku's welcoming throat. Izuku watched red eyes go cross-eyed, Katsuki moaning at the feeling of his wet, warm mouth taking his dick so well.
He loved the feel of Katsuki clawing his scalp, the blonde roughly shoving his dick down his spasming throat. Izuku's inner omega was howling, thrilled that he was pleasing his alpha.
Scarlet eyes studied those rosy red lips slurping him up, the noises around the quiet room wet and sloppy. But they both craved this, Izuku drooling while bobbing his head skillfully up and down on the dick he's been wanting since he learned what sex was in sync with Katsuki's thrusts.
His own dick was leaking so much, pre coming deipping on the floor and axhing to be touched. But he watched from below, noting the blonde was enjoying this if his deep groaning and muscles twitching said anything.
Izuku took his cock out for a moment, hearts in his green eyes before diving back in.
The tall blonde was in heaven, red eyes rolled back, chest heaving, mouth opened as the most beautiful sounds Izuku’s ever heard from him came from his throat. It made Izuku grow harder in a matter of seconds, but he wanted to get Katsuki off before he could start thinking of pleasing himself.
"F-Fuck, fuck, keep going Izuku." Izuku shivered when the grip on his hair tightened and Katsuki jerked his hips into his mouth, picking up speed.
He closed his green eyes, shivering and trying to will himself to not nut yet while feeling Katsuki spasm above him until he finally came in his mouth. And Izuku didn't miss a drop, swallowing everything he could into the back of his throat like a champ until Katsuki came down from his orgasm.
Sadly, Izuku took his dick out of his mouth with a pop sound, wiping his mouth with the back of his hand. His own cock ached so badly, craving to be touched.
The blonde caught his breath after a minute and leaned against the counter, staring at the ceiling and gripping the sink. Izuku wiped his hand and the saliva drooling down his mouth with his torn shirt.
Green eyes looked up into scarlet ones that were suddenly staring down at him fondly. Katsuki moved a hand to stroke his curls, petting his head.
“Bed, now.” Izuku nodded, letting Katsuki pick him up as if wasn't solid, pure muscle weighing over one-fifty pounds. But that was one of the things Izuku loved about him, so strong and powerful.
Walking back into the room, Katsuki placed Izuku on the bed, crawling on top of him. Izuku lace his hands together at the back of Katsuki’s neck, edging him to come down to him.
Katsuki swooped down to lock lips with Izuku's, the omega curling an arm over his shoulders to pull him down more firmly, wanting to bring Katsuki as close as possible. Izuku's mouth was soft, the drag of that sinful tongue turning Izuku on, the breadth of his body solid, tempting.
Izuku groaned, guttural and low, and tipped his head back, letting Katsuki shift to kiss his throat, lay his mouth over the pulse fluttering there. He could feel a smirk crawl up Katsuki's mouth from his ministrations, the lingering touch of teeth against his throat. His fingers webbed themselves in blonde spikes to twist his hair as he gasped, tugged, pulled, and his breath hitched at the spark of heavy arousal that suddenly rolled through his body.
A low growl rumbled up through his throat.
"More," He growled and Izuku shuddered, needing to close his eyes because seeing Katsuki turned on by him kissing his neck was going to make him come. He kissed the hollow of Izuku's throat, slow, deliberate, so he could feel the pace of his heart pick up.
“Gonna claim you, make you mine.” For some reason, that sent alarms into Izuku's mind.
He felt a sense of consciousness slip back into his brain, trying to move his body to reach for his phone. But Katsuki pushed him back down on the bed, their leaking cocks rubbing against each other.
“Kacchan, h-hold on.” Izuku tried to plead, but the alpha was gone, those sharp teeth grazing against his neck.
Despite Izuku being in a full heat, he realized Katsuki was going into a rut.
Before his heat took over again, he used blackwhip to bring his phone to him. Using one hand to hold Katsuki’s head down to distract him, he shakily texted the girls group chat with one hand.
[9:00PM] Izuku: 9-1-1, Katsuki in a rut. Momo please make a secure muzzle and hurry. Don't come in the room, just drop off by door.
[9:00PM] Uraraka: Izuku, are you okay?
[9:01PM] Jirou: Omg?????
[9:01PM] Mina: What the freak? Katsuki is a beta, ya'll okay down there?
Izuku held his phone up in the air with blackwhip, squinting his eyes at the messages and was able to breathe when Momo finally replied.
[9:02PM] Momo: Okay Izuku, give me five minutes and I'll run down.
[9:03PM] Mina: Kirishima said he'll come down with the boys if you need help, Izuku.
[9:03PM] Izuku: I'm fine, explain Later.
[9:03PM] Uraraka: If you say so, just let us know if you need anything.
[9:04PM] Froppy: Be safe Izu, can't imagine Katsuki in a rut not being violent.
[9:05PM] Izuku: Thanks
Izuku was aware of the huge boner pressed against his thigh, Katsuki shivering and rutting against him. Izuku placed his phone back on his dresser, breathes coming out in small pants while his hand tugged harder at Katsuki’s hair, the other gripping the blanket below him.
"Izuku," The alpha started, then paused, closing his eyes and trying to catch his breath.
Izuku suddenly surprised him when he cupped his erection again, Katsuki loudly crying out his name. Then he dragged that hand until it gripped the nap of Katsuki’s neck. Izuku slyly arched his back to bring their bodies flush together, both groaning when their erections rubbed against each other.
He dove back in to kiss Izuku's lips, deepening it, dragging his tongue skillfully everywhere he could in Izuku's mouth to dominate him. A muffled cry left from Izuku when their tongues began to wrestle, his body shaking when Izuku’s lower half dipped down and rocked into his cock. Izuku did the same motion again, Katsuki placing a hand on his hip to grind up into Izuku.
Katsuki lowered both his hands on either side of his freckled ass, dragging his fingertips across the curve of it, then squeezed hard. Izuku jerked and bucked up into him, curling his fingers tightly into his blonde, spiky locks.
“Kacchan!” Katsuki smacked one of his ass cheeks and made Izuku gasp, Katsuki kissing him deeply while fondling the solid muscle, desperately rubbing their cocks together.
Katsuki's lips burned against his skin, hot, fangs scraping across Izuku's neck as he lowered his head down, his sharp teeth against Izuku's throat.
Right one que, he heard something like a package drop at his door on the other side of the hallway.
Footsteps quickly ran away, Katsuki snapping his head to growl in that direction. Izuku forgot Momo was an alpha herself, but her scent was fading, trying to calm Katsuki. He grabbed his alpha's face, bringing it back down to bump their foreheads together.
“It's okay Kacchan, I'm here, your omega is fine.” He let out soothing pheromones, the alpha taking deep breaths and closing his eyes shut.
“You're fucking mine.” Izuku shivered at the authoritative tone in his voice.
The taller male leaned over Izuku, placing one hand on the back of his left thigh, urging Izuku to spread his legs open as he pushed him down onto the blankets. He kissed one of his nipples, letting his tongue flick out to play with the nub as Izuku shivered, and moaned. His scarred hands weaved their way back into blonde hair, tugging when Katsuki teasingly bit down.
Before he could do anything else, though, Izuku's hand curled around the back of his neck, and he flipped them over. Using blackwhip to bind Katsuki, he waddled over to the door and quickly peaked his head out before grabbing the basket, locking his door shut.
He jogged to his desk, emptying the basket to see a black muzzle, condoms, lube, and some other small things.
Bless Momo.
Grabbing the muzzle, he walked back over to Katsuki who's whole body was trapped in blackwhip. Izuku hated doing this, but they both weren't in their right state of mind and he didn't want to risk Katsuki claiming him. That and possibly having Katsuki regret it for the rest of his life.
Yes they cared for each other, Izuku's love more than friendship, but he didn't want his best friend resenting him forever because of one unexpected night of raw passion. Izuku wouldn't even be able to give him kids, and Katsuki said once that he wanted little gremlins running around one day.
He wouldn't risk Katsuki's happiness for his selfishness.
“I'm sorry Kacchan, it's for your own good.” Izuku quickly wrapped the muzzle around his face, tightening it around the back of his head and locking it with the key.
He released blackwhip's hold and stepped back, sadly watching Katsuki try to rip it off. The alpha whined, looking at Izuku like he got betrayed.
“You don't want me to claim you? Am I not good enough.” Katsuki's voice broke Izuku's heart, emerald eyes glossing over with fresh tears.
He walked over to sit in Katsuki's lap, cradling his face into his scarred hands. Katsuki wound his big arms around Izuku, staring at him with hurt in his cloudy red eyes.
“No, no baby trust me, you are plenty enough, I promise Kacchan. But you're not thinking straight though, and neither am I. And I can't risk you doing something you'll regret, but you can still mate with me, just no claiming, okay?” Katsuki growled, but accepted his fate better than expected.
Now with protection, Izuku allowed his heat to fully take back over.
“Open me up alpha, take your mind off the muzzle.” He whispered in Katsuki's ear, purring.
“Fuck yes.” Katsuki laid them back onto the bed, climbing on top of Izuku to touch him like they never stopped.
Pouring lube in his hand, Izuku opened his legs and Katsuki started off slow, his warm fingers circling around him softly at first, teasing. Scarlet eyes studied how Izuku's hole twitched and pre-come dripped from that gorgeous thick dick.
Retracting hia claws, his fingers were now slick with lube, and it took Izuku's breath away as soon as the first digit entered, testing the waters. Then after a minute, he added another finger and moved once Izuku was comfortable. Izuku's back arched to allow him to roll his hips, his feet firmly on the blanket so he could meet Katsuki's fingers pounding into him.
"Ka-Kaachan, more." A whine escaped from his throat.
"You like that, huh? My fingers stretching out your gorgeous ass?" Izuku could only respond with a small nod, followed by a loud moan, trying to rock into those fingers that were working him so well.
Izuku has never experienced this, a virgin through and through. But he trusted Katsuki to take care of him. He's made out with people and had oral sex before. But this was all new territory for him.
Katsuki used other hand to lift Izuku's leg up on his own shoulder, the angle allowing his fingers to go deeper, curling them just right so he could hit Izuku's sweet spot.
"O-Oh, fuck, Kacchan!" Yes, there it was, his prostate.
The blonde smirked, his fingers pressing in, and soon he added a third one, knuckle deep. A guttural groan dragged from Izuku's throat, and he rolled his hips back into the press as Katsuki continued to finger fucked him thoroughly.
The sight of Izuku falling apart beneath him was nothing like he imagined. From the small bead of sweat forming on his skin, to the draw of quick breaths coming from his pretty mouth, those cute pink lips falling open and closed. And those big doe, green eyes, watery and staring up at him with all the love in the world.
Carefully, deliberately, Katsuki spread his fingers, worked them apart a few times to feel the give of Izuku's muscles, then hooked them as he dragged back down, and Izuku gasped loudly.
He watched Izuku shudder, arching his back, grinding down as Katsuki pressed a fourth finger in, shoved deep all at once. He grinned at the cry that got caught in Izuku's throat, those green eyes closed, his face slack as he rode Katsuki's fingers.
The blonde male couldn't help but grin wickedly, expertly moving his fingers in Izuku's hole, twisting, shoving back in, all while watching Izuku turn into a babbling mess beneath him. A smirk crawled onto Katsuki’s face, proudly knowing he could reduce Izuku into this, tears leaking down from that beautiful freckled face.
After a few more minutes of slow torture, reluctantly, he slid his fingers all the way out, reaching for the lube again. When Izuku made a dazed sound of protest, grabbing for his wrist, Katsuki easily caught his hand.
"Don't worry, I'm just getting my dick wet for you. What happened to being patient?" He said with a cocky smirk, and when Izuku shot him a narrowed look, he grinned.
"Look, I can finger you until you come if that's what you want. Or you can come while I'm inside of you." Izuku rolled his eyes.
The shorter male suddenly slid a hand down between his thighs, gripping his cock. Blood-red eyes roll back while a groan escaped from him, letting out a shuddering breath when Izuku did the motion again.
"I want to come while you're inside me, please?"
“Fuck yes, anything you want I-Izuku.” His jaw went slack when Izuku's hand tightened around his cock. A little desperately, he hooked a leg around Katsuki's small waist to flip their positions. It startled Katsuki but he let out a moan when Izuku started to pump his hand up and down, giving Katsuki a thorough handjob.
Reaching for the lube once more, Izuku quickly put some on his hand, then went back to stroking Katsuki’s dick, playing with the slit when he got to the head. It caused Katsuki to hiss, rocking himself up into Izuku's hand.
Katsuki groaned, burying his face in his forearm, body twitching, so desperately tight and hot. The long, slow slide of that hand up and down his cock made his breath tangle in his lungs, his fingers clamping down on Izuku's hips tight enough to bruise as he fought to keep himself from moving too much. But Izuku didn't hesitate and started working his hand faster, watching Katsuki struggle to stay still and tilted his head back, thighs shaking.
"You’re so beautiful like this Kacchan. So, so pretty, only for me." Izuku sounded possessive and it made his abdomen tighten when Katsuki let out a strangled moan.
“Who knew y-you were such a fucking nerdy slut." Katsuki huffed, stuck between wanting to tease Izuku and indulging in lust. Izuku snorted, wiping the rest of the lube off his hand on his blanket.
Izuku lined up Katsuki's cock with his entrance and placed his feet firmly on the bed, sinking himself onto Katsuki until halfway down his dick. He hissed at the massive, burning stretch, but he wanted his alpha in him so badly.
Taking deep breaths, Katsuki held onto his waist and ever so slowly, after a few minutes passed Izuku was finally able to fully sit on his length. He felt his walls spasming against Katsuki's cock, panting.
"That's it, look at my pretty omega sitting on my cock." He bucked up into Izuku, causing him to whimper.
Slowly grinding in small circles, Izuku started to get used to his dick and the pain started to turn into pleasure. He slowly started to move his powerful thighs, going up and down until he found a steady pace. Riding probably wasn't the best option for his first time, but he was here now and he definitely wasn't stopping.
"Kacchan feels so good." Izuku slurred, bouncing on his cock.
It accidentally slipped out, but Katsuki took the opportunity to switch their positions again, quickly placing Izuku below him to spread his legs open. The shorter male shyly looked away, a red blush rising against freckled cheeks, not expecting missionary.
This was intimate, the air around them hot, and the tension tight like a glove.
Katsuki slid a hand up, curling it around Izuku's throat firmly, yet so gently, to feel his racing pulse, to feel him shudder as Izuku made small, desperate sounds when Katsuki started to rock his cock against him, the tip just barely breaching his hole.
"How do you want me to knot you, Izuku? Is this okay to do it like this?" He asked because it was only fair that Izuku got to choose after everything they'd been through.
"I-I want to look at you, want to watch you be inside of me while you knot me." If Katsuki's heart could jump out of his chest it would, taken aback by the request.
"You're so beautiful Izuku, I want to watch you too while I take you apart. Watch that smart ass mouth of yours scream my name.” Izuku scoffed, but there was nothing but love in his eyes as he stared up at him with adoration.
He turned Izuku to his side, lifting his leg above his shoulder to get a better angle he knew would hit Izuku's prostate, and lined up his thick head before pushing in. The first inch went in fine, but as soon as he was only a quarter way in he saw Izuku flinch, gripping the blanket below them.
“Relax for me baby, can't get in if you're clamping up.”
“S-Sorry, Kacchan is so big. The biggest I've had in all honesty.” Katsuki winced, even with his fingers and foreplay he was still hurting Izuku.
“Shit, okay hold on, take a deep breath and relax, okay?” Izuku nodded, green eyes watery as he took a deep breath.
He grabbed Izuku’s hip with one hand, the other shifting to massage Izuku's leaking dick. The shorter male gasped at the touch but welcomed it, spreading his legs further so Katsuki could stroke him.
"Yes, that feels good Kacchan." Izuku praised him, his legs shaking.
The blonde took his time for a few minutes, slowly sinking himself in further. And Izuku shuddered at the feeling, grabbing his legs by his inner thighs so his ankles touched his ears, folded like a pretzel.
Red eyes were entranced by the sight.
Izuku's body was coated in a small sheen of sweat, curls messy, freckled face flushed, quick pants coming from his cute pink lips.
"Y-You can move Kacchan," Izuku said breathlessly, encouraging him with a small smile.
"Okay, I'll try to go slow so I don't hurt you.” Izuku rolled his eyes at him.
“I'm not made of glass, you know. Please fuck me like you mean it Kacchan, this is long overdue.” Katsuki blinked, stunned by Izuku’s words, but he was up for the challenge.
“If you say so, just tell me to stop if it's too much, and I'm serious Izuku.” Katsuki reeled back, and then thrust his way back into Izuku.
"Kacchan—" Izuku screamed, wrapping a hand around Katsuki's neck to bring their faces close together while Katsuki gently thrust into him again.
He set the pace to go slow at first, but as much as Katsuki wanted to pound into him, Izuku was so much more than a quick fuck to him. So despite Izuku's demands to go faster, he was content with grinding deep, wanting their sex to linger as a fire swirled between the two males.
"I want you to scream my name, you're so damn beautiful like this."
"Yes, Kacchan..." Izuku whimpered in response, drowned by the waves of euphoria.
By the time Katsuki got a good pace going, they were both panting for breath. Izuku had small tremors working up and down his body, and there was a throb deep inside Izuku, in a place he'd never been able to reach. And Katsuki swore if he pushed down on his stomach he'd be able to feel himself inside of Izuku. The thought made his brain go feral, wanting to bite his teeth and sink deep into Izuku.
"Don't stop, keep going!" Izuku dug his nails into Katsuki's muscular back. The alpha's skin was slick with a small coat of sweat and trembling himself, half bent over Izuku.
"Shit baby, so fucking perfect, nice and tight for your Kacchan, huh?" Izuku cried when he thrust into him harshly, hitting his prostate.
"Fuck! F-Fuck yes, do that again—" The rest of Izuku's sentence was muffled as he choked on his own moans, Katsuki hypnotized by the sight of Izuku's eyes rolled back and drooling because of him.
"I've never seen you like this before ‘Zuku, you're so fucking pretty." He complimented him fondly. Izuku responded by mumbling something unintelligible, mouth open and jaw slack from Katsuki pounding into him.
All Izuku could do was take it, pushing his hips back to meet every brutal thrust, letting out a surprised squeal when Katsuki moved his hand from his neck to grab his aching dick and stroked it.
The green-haired male whimpered, tears leaking from his eyes as his walls clenched around his big cock, his balls slapping loudlt against the smaller man’s thighs.
The alpha chuckled and rubbed a thumb comfortingly over the back of Izuku's neck.
"You're doing so fucking good, such a good boy for me taking me well." He praised, striking Izuku's prostate once, twice, three times in quick succession. Izuku let out a noise as though he were being strangled and Katsuki loved it.
"Kacchan, faster, harder—" Suddenly pulling out, he grabbed Izuku's hips and lifted him up so he was sitting in his lap, then quickly lined himself up again and slammed back into Izuku.
Izuku's head tilted back as his eyes rolled back, a loud sharp cry escaping him. He bucked up into Izuku with everything he had, rocking deep inside of him, hitting his sweet spot over and over again, watching as Izuku started screaming his name so deliciously, so loud.
Izuku bouncing on his cock was a beautiful sight to witness, his breath catching as his chest rose then fell, breaths coming out in quick pants as Katsuki rocked up into him, the feel of something swelling inside of Izuku surprising him.
But that's when he realized it was Katsuki's knot, the size growing bigger until Izuku felt stuffed to compacity. It almost hurt, but Izuku was too lost in lust to care. He let himself be fucked on Katsuki's knot, enjoying the feeling of being full.
Izuku managed to wrap his hands around Katsuki's shoulders only to babble nonsense, his mouth falling open then closing as that familiar burning sensation climbed up in his gut. Just a few more strokes and his climax would take over, the all too familiar signs of the bunching of muscles and his thighs trembling.
Sure enough with a cry that broke in the middle, Izuku came. He buried his face in blonde hair, gritting his teeth, coming so hard his vision swam with black for a long, breathless moment as he spilled come all over their chest.
Katsuki didn't last much longer than he did and after a few more thrusts he came too, holding onto Izuku so tightly as he rode out his own orgasm. His knot caught inside of Izuku's walls, thick, hot come squirting inside of him, so much that he could feel it leaking out of his hole on onto the sheets.
Eventually, with a groan, Izuku slumped over and Katsuki sighed, keeping his arm around him as he settled them on their sides, still pressed up against Izuku, deep inside of him. He didn't want to pull out yet, and from the way Izuku tangled their legs, and sank against his chest, Izuku wanted to stay like this too.
"How do you feel?" Katsuki softly asked.
"I feel s-so good Kacchan, you are so amazing." Izuku almost sounded breathless, turning his head where it was pillowed on Katsuki’s shoulder to smile tiredly at the blonde.
Katsuki rubbed a thumb over his hip, watching Izuku's pretty freckled face staring at him fondly. The freckled male moved to nuzzle their faces together, waiting for Katsuki's knot to deflate.
After that, they went too many rounds to count and Izuku remembered them fucking for hours until the sun came up. But really everything was a blackout blur, his memory foggy and passing out at some point.
Izuku woke up to the sound of a machine beeping, green eyes slowly opening and blinded by bright florescent lights above him.
He groaned, licking his dry lips and gulping. Moving his arm, his eyes shifted to see an I.V tube connected to his wrist before lifting his head up and sniffing. Izuku almost wanted to gag at the sterile smells, the scent around him all too familiar.
The omega tried to sit up, but a voice stopped him.
“Easy son, don't move too quickly.”
Whipping his head to the left, he was startled to see All Might sitting in a chair. The older man was smiling at him, and Izuku tiredly smiled back.
All Might got up and walked over, placing a hand on Izuku's back and helped him sit up. His muscles ached, but he's broken almost every bone in his body from One For All so he could manage with the pain.
Glancing around, he saw his hospital room was filled with flowers and get well cards. A box of chocolate was placed on the table side, a note from his mother based on the handwriting on top of it.
“H-How long have I been here? And how?” Izuku asked, his voice coarse.
All Might handed him a glass of cold water before answering, “Four days now. And after you texted Miss Momo your friends were very worried about you two. You didn't show up to Aizawa's class the next day and he overheard your friends talking. He sedated you both and you two were rushed to the hospital afterwards.”
Four days?
Also Aizawa most likely seeing them go at it made him groan, embarrassed. He will never be able to look that man in the eye again.
Izuku chugged down his water, then handed it back to All Might. He remembered his heat being triggered from some reason way earlier than it should have. And right after he texted Katsuki, but after that everything else was a blur.
Katsuki.
Bits and pieces started to resurface his memory. Flashbacks of them kissing, touching, Izuku begging him to stop, keep going, telling Katsuki how good he made him feel while they had the most intimate, raw, intense sex.
Freckled cheeks turned rosy red, quickly blinking away any more proactive thoughts while in the presence of his father figure.
“Wow, four days is a lot to be out.”
“Well,” All Might smiled, resting a hand on Izuku's shoulder. “You were in and out of consciousness while being in heat and young Bakugou was stuck in an unusually aggressive rut. The transition was doing more harm than anything, so you both were taken to the hospital and heavily sedated. Bakugou fully woke up two days before you did, and was constantly monitored due to the violent mood swings he had when he would wake up without you by his side.” Izuku blinked slowly a few times.
“Oh, I see.” He was at a loss for words.
All Might squeezed the hand he had on Izuku's shoulder, “This also happened to me too, back when I was your age and first inhabited OFA by my predecessor.” Izuku visibly gasped.
“You were a beta?” Izuku harshly whispered, causing All Might to respond with a light hearted laugh.
“Remember young man, I was quirkless just like you until Nana found me. I biologically was an omega with beta tendencies, kind of like young Bakugou actually. But after gaining OFA I had a horrible transition and genetically changed into an alpha. I remember it being a rough few days, but things got better when I learned to repress my emotions and control myself.”
Wow.
The lore on learning who the real All Might was always fascinated Izuku.
“That's not too shocking to hear since OFA definitely is always surprising me too.” All Might huffed out a small laugh at that.
“Yeah, it definitely can throw us for a loop. Some users like the second, third, sixth, and my predecessor Nana were naturally Alpha's. The rest of us were either an omega or beta that got genetically changed due to the nature of OFA. You're different however since you're an omega with alpha tendencies, a bit of both, so it works out for you.” Izuku nodded his head, his brain quickly processing the information.
“Well that doesn't explain why all this happened, maybe me and Kacchan triggered each other somehow. I just feel bad for him since we, well, you know. He didn't claim me or anything! But I'm afraid that things between us may be strained now.” He let out a shaky breath through his nose, his eyes feeling watery thinking about Katsuki.
What was he even supposed to say next time he saw Katsuki? Hey, thanks for fucking my brains out, let's train and get lunch tomorrow? By the way I'm in love with you and want you to claim me, be mine.
A range of emotions hit Izuku like a truck all at once, his racing heartbeat making the heart monitor beep faster.
“Can I give you some advice?” Izuku flickered his gaze to All Might, sitting up straighter.
“Of course you can, All Might.”
“This is one of those times where my old man adventures come in. Do you remember Dave when we went to I-Island?” Green curls bounced when Izuku nodded his head at the question.
“Well, he was an omega and we had a love affair back when we were younger. It's not public knowledge, because at the time two omegas together was seen as taboo. It's more acceptable today, but whenever I went into heat, I shared them with him, nothing too crazy. Then one heat when I changed into an alpha he was with me, and–” All Might sighed before continuing.
“After we unofficially mated I told him I wanted to claim him a few days later after I was back to normal. He told me his alpha girlfriend was pregnant with Melissa and the rest is history. He wanted to get a divorce from his wife when Melissa was five and be with me, but I told him no, despite that I wanted so badly to say yes.”
Izuku raised both his eyebrows, “Then why did you tell him no?” All Might gave him a sad smile.
“Because I knew my destiny was to defeat All For One, and I didn't want to put Dave and Melissa in danger. The life of a hero seems fun, but there's difficult decisions that come with it. And choosing who you want to love is one of them.”
“I'm sorry All Might, I wish you and Dave could have worked out, but what does this have to do with me and giving advice?” All Might softly sighed, looking off into the open window.
“What I'm saying is, you still have your whole life ahead of you and you know who you want to love. So either carry on like normal after sharing a night like that with young Bakugou, and be like me. An old man who's single, never married, still in love with someone out of reach, and no biological children aside from you and Melissa being like my own. Or say something and work things out with the person you want to be with.” All Might finished with a strong smile.
The older man's phone suddenly buzzed, All Might fishing his phone out his pocket and reading a text message.
“Ah, I'm sorry to cut this visit short but there's something I have to take care of. The doctor said if you do fine today you can go home tomorrow evening after a few more tests. Text me and let me know what happens.” All Might stood up and waved, heading towards the door.
“Hey All Might,” Izuku called out, the older alpha turning to look at him. “No one who has ever been in love with you is ever out of reach. And with AFO gone and Melissa grown up, nothing is stopping you from making that phone call.”
Something in All Might's blue eyes sparkled, the older man blinking a few times before smiling at him.
“Thank you, young man. We'll talk soon.” Izuku waved at him, now by himself in his hospital room.
Alone with too many thoughts, he flopped back down on his bed and closed his eyes, feeling a pit in his stomach.
Hours that felt like days passed, and eventually the doctor said it was okay for Izuku to go home tomorrow morning after one more night of monitering. But he needed to rest and be off school for another two days until his hormones were completely back to normal.
Izuku understood this, but it made him anxious. The more the clock ticked, the further his anxiety ate at him.
He texted Katsuki earlier to ask if they could talk before he got discharged, but was left on on read.
Anxiously waiting for a response, he figured school was what was keeping Katsuki busy. But now it was late Friday night, so Katsuki not texting him back was a bad sign.
He glanced at his phone again, opening up his chat with Katsuki.
[10:01AM] Izuku: Hey Kacchan, i'm getting discharged from the hospital tomorrow! Apparently All Might went through the same thing years ago, but I can't tell the full details in a text. I'll have to tell you about this in person.
[12:31PM] Izuku: Anyway, I'm still in the hospital for the next two days and won't be back to school until Monday. So I'm gonna be stuck here and lightly monitored. You could come visit if you want to talk?
[8:07PM] Izuku: Actually, can we talk if you have time? No pressure if you don't want to. Have a good night, Kacchan.
He kept getting messages from everyone who wasn't Katsuki and wanted to rip his hair out. At this point, he was almost tempted to sneak out of the hospital and go back to the dorms to find the blonde until he saw footsteps approaching from the bottom of his hospital room.
The door slid open and green eyes widened, seeing Katsuki in the flesh walk in with a bouquet of roses in his hand. A small frown was on his face, waves of nervousness rolling off of the taller alpha.
Izuku immediately produced calming pheromones around the room, hoping that would help Katsuki with whatever was troubling him.
Katsuki walked until he was at the side of Izuku's hospital bed, setting the flowers down on the table side. Izuku stared at the roses before looking up into scarlet eyes, a smile on his pretty freckled face.
“Hi Kacchan.”
“Hey Izuku.” Katsuki quietly responded back.
“It's almost midnight, how are you here after visiting hours?” Katsuki smirked.
“The girl at the front desk is a big fan of mine, and you forget we saved the world almost two years ago. Being handsome and having fans has perks, nerd.” Izuku rolled his eyes, smiling at him.
He softly gasped at the feel of Katsuki's hand gently caressing the side of his face, the blonde taking a strand of green curly hair and pushing it back behind his ear.
Emerald eyes glanced at the roses again, “Are those for me?” He questioned, already knowing the answer.
"What, you think there for your mom or something? Yes there for you, idiot.” Izuku giggled, flickering his gaze back up to the handsome blonde male.
There was so much to say, both aware of the silent awkwardness. But someone needed to break the ice, and it looked like Izuku was going to have to be the one to pull up his pants for this.
Instead of saying words, he scooted over, patting the empty space on the bed next to him. Katsuki raised an eyebrow, narrowing his eyes at Izuku.
“Izuku, I don't think we sho–”
“Come here Kacchan.”
Without hesitation Katsuki took off his shoes, threw his jacket in the chair and slowly climbed into the hospital bed with him. The alpha was definitely acting shy, but Izuku surprisingly wasn't and boldly laid his head on his shoulder.
Katsuki physically froze up, but relaxed after a minute, placing his head on top of Izuku’s. The blonde wrapped a strong arm around Izuku's waist, pulling the freckled male closer to him.
At this angle Izuku's face was right at Katsuki's neck, smiling before giving his throat a small kiss. It made Katsuki visibly shiver, Izuku repeating the motion again, and then a third time.
“I'm not fucking you in a hospital, so stop while you're ahead Izuku.” Katsuki gritted through his teeth, making Izuku laugh.
“Sorry, I can't help it, Kacchan.” He snuggled into Katsuki, grabbing one of the alpha's hands with his scarred one.
Izuku gently ran a thumb over the palm of Katsuki’s hand before bringing it up to his mouth to kiss it. Red eyes followed every movement, but Katsuki didn't say anything about it.
They stayed quiet in each other's company for a while, opting to just hold one another with light touches here and there. Eventually, the tension broke and the air around them was comfortable now.
It was nice, almost feeling like a domestic couple after a long day. But the sad reality hit Izuku in the face, because that's not what they were and he wasn't sure if they ever would be.
His mood turned sour, eyes becoming watery and he tried his best not to cry, but he couldn't help it. He attempted to scoot away, but the hand on his waist tightened, Katsuki shifting his body to face him.
“Izuku, what's wro–”
“You don't want me Kacchan, so I don't understand why you're here right now holding me so tightly like you..." Izuku gulped, feeling a lump in his throat.
“Like I what?”
“Like you have feelings for me. I mean I'm happy to see you! But you don't have to be here for my sake. It's not like anything was going to come out from what we did the other night anyway.”
“Excuse me?” Izuku shook his head, feeling small and pathetic.
“Listen, just ignore my messages I sent to you earlier, we don't have to talk about anything actually. I went into an early heat, you went into an unexpected rut and you probably just feel sorry for me. But we're level headed at the moment and I just want you to know I'm not mad at you. In fact I'm glad you felt safe enough to share your rut with me, but now that you're an alpha, you don't need me.” His lips wobbled, biting his bottom lip.
Katsuki huffed out a sigh, “Are you fucking forreal right now, Izuku?”
“Yes, I mean think about it. I'm so grateful for the new relationship we've built over the last few years, and I'm sorry I always bother you when I go into heat. I just feel safe around you and care about you so much. And I don't want to ruin what we have, especially since I can't give you kids like a traditional omega can. So you can find someone else and I won't bother you when I have my heats ever again after this.” Damn, this was so hard for Izuku to do, but it needed to be said.
He squeaked when Katsuki suddenly grabbed his hips, gently setting Izuku on his lap to face him. Izuku rested his scarred hands on his chest, not expecting to be put in such an intimate position.
“Look at me Izuku.” He tried but he couldn't, scared to see disappointed red eyes staring back at him.
A hand on his jaw turned his face to look at Katsuki, so he opted to close his eyes instead, the alpha's hand on his chin unwilling to let go of his face. A wave of sadness, anxiety, and guilt hit him all at once and Izuku almost wanted to throw up.
“Fine, if words ain't cutting it i'll show you I still want you.” He opened his mouth to respond, but instead whimpered quietly at the feel of those warm hands going underneath his hospital gown to rub his bare freckled thighs.
Izuku let out a shuddering breath, his heart monitor beeping faster the higher Katsuki's hands went up his body, purposefully missing his growing erection and stroking his nipples with his thumbs.
“Kacchan, you don't have to–”
“Shut up Izuku.” He said with no bite to his voice.
Izuku's legs quivered, moaning when Katsuki started to rub them in small circles, feeling milk dripping down his chest. Pre come was leaking from his cock, feeling embarrassed that he was getting so wet and turned on by the blonde's touch, but Katsuki didn't seem to mind.
It was actually the opposite, Katsuki moving his hands away from his chest. Izuku thought he was done, but instead he lifted the front of his hospital gown and attached his mouth to one of his nipples. He was careful not to graze it with his fang, sucking the sweet milk coming from Izuku.
“Ka-Kacchan!” A gasp came from the omega's mouth, trying to keep his voice down when he heard nurses walking down the hall. However, Katsuki has the bright idea to hold his hip with one hand, followed by touching his acing dick with the other.
With one hand holding him steady by the waist, Katsuki let his other hand slide down to squeeze around his dick then to fondle his heavy balls, making the shorter cry out loud.
Izuku quickly slapped a hand over his own mouth when the nurses stopped talking, turning his head to anxiously look at the door.
A knock was heard from outside,
“Hey, are you alright in there, Midoriya?” Izuku tried to respond but had to bite back a moan, Katsuki’s tongue flicking out before sucking his other nipple into his mouth like a vacuum.
Katsuki gathered come from his leaking cock to use it as lube, stroking Izuku’s cock with the right amount of pressure that drove the freckled omega crazy. The stimulation of Katsuki’s hand and mouth had Izuku drowning in a sea of lust, feeling wet everywhere.
The nurses knocked again, starting to turn the handle.
“I-Im okay! No need to come in, I just almost fell out of m-my bed. Thank you for checking, I'm fine!” He tried his best to respond normally, grabbed blonde spikes to push Katsuki’s head closer, tears leaking from his eyes.
“Okay, have a good night!” The nurses responded, leaving the door to continue their gossip walk down the hall.
Once they were gone, Izuku stared down at Katsuki with hooded emerald eyes, biting his lip and whimpering. Katsuki’s thumb moved up to rub the head of Izuku’s cock, and then slid back down with the rest of his fingers while using his pre come to slide up and down.
Izuku's thighs began to shake, his back arched to allow him to roll his hips with Katsuki’s hand movements. Trying his best to stay still but jerking his hips forward with every stroke.
"Kacchan, I'm almost there, don't s-stop!" Izuku could feel his orgasm approaching, hot and ready to feel release.
Katsuki removed his head from his chest so he could watch Izuku's chest rise up and down, his heart feeling like it was going to leap out of his chest from the adrenaline rushing through him.
From the shaking of his legs, every roll of his hips in sync with his hand job, every time his green eyebrows twitched because he was trying to hold himself back, it was too much for Izuku. He glanced at glazed over scarlet eyes, Katsuki's pupils turned into slits again.
"Come for your alpha, Izuku." He unconsciously commanded.
It was like a switch flipped, the command making Izuku's body lock up. His abdomen tightened as his back arched from the intensity of the rush, feeling hot all over and suddenly his body trembled viciously. Emerald eyes rolled back and he came violently, Katsuki conscious enough to cover his mouth for him when he moaned a little too loud.
He came in Katsuki's hand, ropes of white painting them followed by another wetness he wasn't familiar with. But that's when he realized he was squirting, soaking him and Katsuki with his intense orgasm. And he didn't stop, coming for almost a full minute while Katsuki held his steady, taken aback by how aggressive this orgasm was from his previous one.
His breaths came out shaky, grateful to Katsuki for covering his mouth while he caught his breath. Tears leaked from His eyes down onto Katsuki's hand, sniffing loudly.
Subconsciously, he wrapped his arms around his alpha neck, scooting his trembling body closer to Katsuki's, chest to chest.
Katsuki soothingly rubbed his back with his clean hand, lighting kissing the side of Izuku's neck.
“You think I still don't want you after that?” The blonde whispered to him.
“N-No, Kacchan knows how to make me feel so, so good.” Izuku nuzzled his face into him.
“Good, because it's not that I don't want to claim you. I wanted you before all of this, but now being an alpha I want to do this properly like I should.”
“What are you saying?”
“I mean do what an alpha is supposed to do. I want to take you out on dates, court you and all that mushy gushy shit before I actually claim you. I don't know if you realize this Izuku but I care way too much for you to just up and mate you without doing it right. You deserve the best and that's what I want to give to you.” That made Izuku pause.
He pulled back to stare at Katsuki, emerald eyes meeting scarlet ones. They stared deeply into each other's souls, Izuku bringing his hands up to hold the sides of Katsuki’s handsome face.
“Do you honestly want that? To start a life with me and eventually be fully mated I mean. Now that we're both not in a heat or rut, I want you to fully understand that I am an omega, but I–I Can't give you a family. I can't give Kacchan kids and you'd be stuck with me forever. Are you sure you want that?” Trying and failing to blink fresh tears away, Izuku started to softly cry again.
Katsuki leaning in to kiss him made him gasp, closing his eyes and melting into him. This kiss was soft, Katsuki slowly mending his lips to his in a way that felt way too intimate for it to be casual.
The heart monitor in the back started beeping fast again, but neither cared while they made out with each other. Dare Izuku say it almost felt like they were lovers.
Katsuki broke the kiss,
“Izuku, you're my omega and nothing is going to change that. And so what you can't have kids, we can adopt. We're gonna be rich pro heroes so we can have as many kids as you want, raise a couple of explosive, strong gremlins. Or fuck it's, there's a bunch of freaky quirks in this world. We can find someone to take our DNA, make our own kid, or get you a pussy and we can have some fun with that too.” Katsuki wiggled his eyebrows, making Izuku laugh.
“And you're serious about this? You would go through all those extra steps just to be with me?” He stroked Katsuki's face.
“Yeah, when you love someone you'll do anything for them.”
Izuku sniffed again, gently butting their foreheads together.
“Okay, I'll let Kacchan court me then. And I love you too, so much.”
“Damn right you do, my little nerd. Now let's get changed since someone decided to turn it into a waterpark.” Izuku playfully scoffed, Katsuki smirking at him.
“You mean because someone can't keep their hands off me? You're so cruel sometimes Kacchan.” Izuku playfully joked, both laughing.
Izuku leaned in and their lips met for a kiss neither rushed, happy and ecstatic about the idea of falling more desperately and deeply in love with his alpha.
Bakugou Katsuki would always be it for him.