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Bakugou growled lowly as he got shoved back against the door. He did his best to bear the tiny fangs he had at his companion, but it did little to ward him off. As expected of the number one hero.
“Oh, come on, Kacchan~ Don’t be like that!” Midoriya whined, trying to lean in close without getting bit.
“Shut up, Deku! You’re 30 minutes late!”
“Wha- People just kept asking for autographs. You know I can’t just turn down fans.”
“The hell you can’t,” the blonde grumbled before posturing. His spine was stiff as a board and he wasn’t backing down (even though he really was just pressed to a wall by Izuku’s chest).
“Stop being so bratty, I’m here now. Aren’t I?” the green haired male grinned and slowly leaned in. He let his pheromones emanate from himself and slowly fill the Omega’s nose.
There was an instant shift in the blonde’s expression. He seemed to completely take in the scent of his mate before quickly switching back, “F- Fuck you, shitty nerd. That is not working on me this time.”
“It isn’t?” Izuku asked in a playfully tone. Suddenly, the Alpha stepped back and pulled Katsuki along before pushing him back onto the bed. “I think it will.” Midoriya eagerly pressed his face up against the other’s neck, happily nuzzling at his scent gland,
Katsuki gasped and his whole body grew rigid. As much as Bakugou argued that Midoriya didn’t know shit about him, the larger man knew him 100% both inside and out. He knew the perfect way to drag his fangs over that faded mark and he knew the best way to overwhelm Katsuki with his pheromones. “D- Dammit-... Deku~” the Omega shuddered and grasped onto his partner tightly. Katsuki wanted to be rough, he wanted to be harsh and give Deku no special treatment.
If Kirishima or Dunce Face was ever late to an event with him, Katsuki was prone to just leaving the meeting or event immediately. The only person he’d ever wait up on was Izuku. He hated admitting it, but it was the only reason he hadn’t gone to bed yet. The concept of knowing he could fall asleep nuzzling his Alpha was much more comforting than nesting in a bed alone.
Midoriya subconsciously knew this too. From childhood friends to acquaintances to rivals to friends to lovers. It was an odd path but had given them both plenty of time to learn the other inside and out. The Alpha smiled and licked over the scent gland before nuzzling along his jaw and purring, “I’m sorry I made you wait for me so long, Kacchan… Please let me make it up to you.”
The blonde growled in annoyance. He wanted to stay pissed and be a brat, but then Midoriya’s scent hit him again. Bakugou felt all fuzzy and needy inside. “Shithead… Fuck you.”
“Only if you ask,” the large male mused with a playful smile. He knew what he himself was doing. Thanks to the quirk All Might gave him so long ago, his caste has changed from Beta to Prime Alpha. Midoriya had the proper pheromones to induce heat-like reactions. He knew it was cruel to use such a thing on Kacchan to make him feel good, but they’d both get what they wanted if the Omega was just as excited.
By now, Katsuki was clearly getting worked up. He rolled his hips against Izuku’s and groaned out loudly. The Omega felt this unreasonable need to just be with Deku. His heart was starting to race and his body felt hot. And he admittedly liked it! He yearned for more of that feeling as the larger male's hands began roaming all over him.
"G- Get your clothes off already, dammit," the blonde hissed, violently tugging on Midoriya's rather tight t- shirt.
“Okay, okay, just relax, Kacchan. You’re not gonna’ die or something,” the green haired man reassured before leaning back. Katsuki was already stripped to his boxers but Midoriya was still in his civilian clothes he had walked home in. Midoriya quickly got to work stripping down all while watching the other pull down his boxers. The smell of slick hit his nose and he had to pause for a moment to stay in control. The Alpha usually was unaffected by suck smells when working but when it came to Kacchan…
Nothing in the world was like Kacchan. His scent was smokey and sweet like just barely overdone caramel and his slick heightened that flavor in Izuku’s nose. Kacchan’s scent made him want to ravish the Omega until he was unconscious; however, he knew that was off the table until Katsuki’s actual heat. Eagerly, Midoriya got back to undressing and eventually had everything on the floor.
“Okay, now may I get back to what I was doing??” he asked with a happy-go-lucky tone.
Bakugou grumbled something under his breath then spread his legs out, “Whatever, get over here.”
Instantaneously, Midoriya was tucking himself back in between the Omega’s thighs. The blonde’s breath hitched as he felt that large bulge pressing against his own. He hid his face in the other’s chest then, trying not to break so quickly. He wanted to remain in control but Deku’s scent and pheromones worked too well on Katsuki. “Hng~ Sh- Shitty nerd… just- just put it in. I need it.”
Those words went straight to Midoriya’s cock. Fussy Kacchan was nice and all, but hearing him whine for him once in a while was euphoric. The Alpha moved his hips back and carefully guided the head of his cock to the other’s cunt.
Bakugou moaned out loudly as the other pushed inside, “F- uck!... Dammit, fuck..” His nails clawed at Midoriya’s broad back, and the Alpha couldn’t help but groan. In battles, that feeling was annoying; when with Kacchan, it felt perfect. Those pointed claws scraped just right and made the green haired man thrust all the way in on reflex.
They pushed Midoriya further. The top hero was expected to have control but that was the complete opposite of his style in bed. He was hungry and eager and desperate for his Omega- and he wouldn’t want it any other way. Izuku moved his hand up into Katsuki’s hair and gently gripped. This action alone drew out a loud cry from the Omega, making his hips jerk in excitement.
“D- Deku~” his mouth hung open, tongue slightly out as he panted. Izuku wasted no time in pressing their lips together while their tongues swirled around one another. Midoriya’s hips moved with something like a beat while his scent completely overwhelmed Bakugou. The blonde felt light headed, as if he was floating on a cloud while being fucked into.
The pleasure of sex when with a mate was totally amplified. Sexual interactions before mating with Deku had been nothing special. They left him empty while every little touch now felt like a lightning strike. It was a shocking sensation that shot up his spine and left him on the edge of losing total control.
Midoriya liked it that way though. In Izuku’s eyes, they were more than average mates- they were soulmates. To be the only one allowed to break down Katsuki’s rigid walls gave the Alpha a satisfaction he’d never be capable of describing. He quickened his pace at the reminder of that thought, moaning lowly against the blonde’s lips.
Bakugou’s back arched in delight, head swimming with only thoughts of Midoriya. Beforehand, all that mattered was being stubborn. Now he was at the Alpha’s mercy with numbing pleasure seeping into every nerve. “H- Harder! Now, Deku!” he whined loudly, claws digging even deeper into the other’s spine.
“Hng! Ah- AHhh~” the green haired man let out a pleasured growl, his hips quickening in pace. “I- I love you, Kacchan~” he moaned, lips trailing down along the blonde’s jaw then. “I love you, I love you, I love you.” Each repetition was matched with a rough thrust, making Bakugou almost squeal in bliss.
“I- … I love you too, just- just breed me, dammit! Please!” the omega cried out, frotting his cock against Izuku’s lower abdomen.
This pushed Midoriya further and further, yearning for his mate’s desperate cries to grow louder and louder. His tongue lapped over Katsuki’s scent gland before he sucked on the sensitive muscle. The erotic scent eminnating from the blonde now had Midoriya so close to the edge. His thrusts grew violent and erratic, the hand tangled in those blonde locks just pulling harder.
“Yes- Yes, yes, yes!” the Omega wrapped his legs tightly around the other’s waist, every thrust making his own cock throb in delight. His cunt squeezed tightly around the Alpha’s cock as a knot just barely began to swell at the base.
“K- Kacchan, I’m gonna’- I’m gonna’ cum~” the large man moaned gently against the other’s scent gland, fangs just barely pressing down.
Katsuki couldn’t even respond, moaning in pure euphoric bliss as Izuku rocked his hips into him. Those noises were music to Midoriya’s ears and was the last thing to push him past the point of no return, “Oh, Kacchan~!” His climax washed over him like an intense wave, causing him to cum hard inside Bakugou. “God, you feel amazing!” He continued to thrust as his knot slowly swelled. It began to stretch Katsuki’s cunt, making his hips shake as it made that growing knot in his pelvis grow.
“Yes- God, fucking dammit, knot me!” the Omega growled desperately, dick twitching and throbbing with need. Midoriya groaned at the way Bakugou's body tightened around him, fitting the shape of his knot just perfectly. The Alpha gave one final thrust inside Katsuki and made him cry out, “Shit, Deku!” His back arched off the mattress and he cried out in pleasure. He climaxed, cumming all over his abdomen without his cock even being touched.
Midoriya moaned lowly by his mate’s ear, enjoying the sickeningly sweet feeling that overwhelmed them both. The two breathed heavily but didn’t dare try to move away. Though Katsuki’s claws retracted, his palms gently rubbed across the Alpha’s back to hug him properly.
He didn’t dare say a word as he got comfortable, appreciating the throbbing Izuku’s knot caused in his cunt.
Deku just smiled though as he let his chest press against Katsuki’s, a little laughter leaving his lips, “One of these days… I really think I am going to end up breaking you on accident.”