Archive of Our Own

“Izuku dear, wake up.” The soft voice of Inko and comforting caress woke Izuku up. “Mom our company is in a two-day vacation. Can I sleep in?”

Inko chuckled lightly, “I’m sorry for taking your precious vacation, son. But remember I told you that we’re meeting important people today?”

Izuku slowly remembered that indeed his mom told him that they will be meeting a close family friend. “Is it today?” He asked with his eyes still shut.

“Yes dear, so move along. I have prepared breakfast. Dress nicely and come down, okay?”

Izuku nodded and slowly rose and started his preparations. After a while, Izuku came down wearing a crisp white button-up shirt with subtle green accents on the collar and cuffs, paired with tailored green trousers and white loafers. A lightweight cream cardigan hung over his shoulders.

“You look good, son. No wonder the office kept receiving marriage proposals. My son is dashing, kind, smart and hardworking.” Inko clasped her hand looking at his son descending the stairs.

“Mom, your praises are over the top again.” Izuku smiled at his mom and accepted her hand as she guided him to his seat. “And I did not even look at those proposals. I don’t want to be mated. The company may be doing well, but I have much work to do. I don’t have time serving an alpha more so to have pups.” Izuku dismissed the idea of marriage and bit down on his club sandwich. He was busy munching his breakfast not seeing Inko’s amused reaction.

----

“Why the fuck do I have to wake up early just to wait for half an hour. Who the hell are we waiting for that you both dressed up to the nines?” Katsuki roared as his patience was waning over time. Katsuki wore a sleek black button-up shirt and paired with tailored black slacks. The shirt had subtle orange trim along the collar and cuffs for a touch of contrast. He completed the look with polished black loafers and a minimalist orange wristwatch.

“Shut up brat, you better behave yourself. We’re meeting a very dear friend of mine. You will show nothing but good manners. You hear me?” Mitsuki glared at his son, and even if Katsuki wants to talk back, the look of his father telling him to just listen, made him grit his teeth.

The door chimes sound, and Katsuki smelled a very distinct scent of lavender and honey. His heartbeat pumped harder, but he refuses to address the familiarity.

“Oh, my dear! Inko you’re looking great! I missed you so much!” his mother hastily rose and greeted the person she was longing to meet for a long time.

“Mitsuki! You did not age even a little! You’re as gorgeous as ever.” A soft-spoken voice responded, obviously the fondness rising.

“Hello again, Inko. Please take a seat. I see your son grew up as well. He looks dashing.” His kind father offered a seat while Katsuki remained to look away still refusing to acknowledge their companion.

“Katsuki, won’t you greet our guest? I am sure you remember Inko and her son, Izuku. I remember you and little Izuku were joined in the hip when you’re both toddlers.”

“Izuku, you look stunning. You’re definitely adorable when you’re still a babe but now, you’re more than beautiful.” Mitsuki praised the younger Midoriya. “Katsuki?” his mother called with a bit of a warning on edge.

Katsuki finally willed his head to look and meet their companions. His eyes landed first to the adult Midoriya. She grew a bit plumpy but her meek and timid face as he remembered are still there. Emerald eyes look at him with fondness. “Hello, Katsuki. I see you’ve grown as a fine man. Mitsuki, is he a heart breaker?” Inko chided which made Masaru and Mitsuki laughed. Katsuki just gave a curt nod before moving his eyes to the young greenette next to her.

“Kacchan…” a soft, melodic sound.

This made him gulp down, hearing such odd familiarity. He looked at him and piercing emeralds gazed back. “Deku.”

“Katsuki! Why are you such a bully? Don’t call him that. I thought you grew up.” Mitsuki hollered by his side reprimanding him to show courtesy.

“Tch.” He just scoffed and looked away. What does he have to say? How are you?

“Hi, Kacchan. How are you?” the young omega politely greeted. Yet Katsuki knew how fake it is.

“Fine, how about you, still a nerd?” the young alpha taunted and gritted his teeth and got a bruising elbow from his mother.

“It’s okay auntie, its nice to know Kacchan never changed. He is still…him.” Izuku smiled but the hard gaze in his eyes says otherwise.

Katsuki stood abruptly, “Toilet.” Then he went off, wanting to escape the horrendous scenario.

Masaru just sighed and offered a comforting smile to the mother and son, “Please excuse him, he is just not a social person.”

“Oh no worries, he actually acts maturely now compared to when they’re kids, right Izuku?” Inko waved off, “Why don’t we start ordering? I am quite hungry.”

As the adults were ordering food, Izuku’s eyes kept darting towards the washroom. Then he stood up, “Please excuse me, I would like to wash my hands.”

Mitsuki followed Izuku’s direction wondering, “They were such playmates when they were kids, Katsuki was a mean boy, but he never hit Izuku, did he?”

“Oh no he did not. If he did, Izuku would have told me. I hope this would not be an issue for our arrangement.”

“It will be a surprise, but I am confident they will get along after the initial shock.” Masaru answered while sipping his tea.

------


It was just an excuse. Izuku really wanted to talk with his former childhood friend privately.

“How long will you be staying in the washroom, Kacchan?” he called out.

Katsuki went out from a cubicle and headed to the sink to wash his hands. “The fuck you’re following me for?

“It has been years, don’t you think so?” Izuku stepped closer. Katsuki’s warm spices and vanilla spiked a little.

“So?” Katsuki dried his hand with paper towel and folded his arms as he faced the young omega. Now that they’re in a more enclosed space, the lavender and honey is filling much the area. “Why are you here, Deku?”

“Deku, huh? Still a mean bully, ‘Kacchan’.” Izuku stepped in a little and glared at the young alpha. “Will you ever grow?”

“Says someone who still calls a grown man, Kacchan. What, finally got your bone hardened and ready to strike me down? No longer a crybaby, weak mommy’s little omega?”

A deafening slap echoed the walls. “I should have slapped that fucking mouth shut before. You never change, Kacchan.”

Katsuki laughed lowly, as he massaged his cheek and jaw a little. “Hah, feisty little shit. You sure about that, Deku? I know you love my mouth in you. But look at you, blushing like a virgin. I can smell your slick from afar.”

Izuku chewed at his lips, the alpha’s scent wafted in the air that it’s affecting him slowly. Yet he smirked as he saw something interesting, “Really, Kacchan? But who is sporting a hard on in his pants? Surely not me. Oh was it my scent’s fault again?”

Katsuki looked down and confirmed his raging boner, yet he only grinned like the devil and raised his brows, “Then, why don’t you pull your pants down and bend for me, like the bitch you are.”

“I fucking hate you, Kacchan. I detest your smell. You’re the thorn of my life.” Izuku spit his words like venom, yet his body is moving forward toward the alpha.

“I know you do, I fucking hate you too. I don’t want to see your ugly mug ever again.”

Then Katsuki suddenly grabbed Izuku’s hips and slammed him on the wall. His mouth captured the omega’s lips with a searing kiss. He forcefully opened Izuku’s mouth by biting his lips and inserted his tongue. Izuku was losing control as he gripped Katsuki’s shirt. Katsuki broke the kiss, both of them breathless. "I thought you changed now, hah Deku?" He sneered, his lips brushing against Izuku’s ear. "But all I see is the same weak omega, trembling under my—"

Izuku snarled, cutting him off as his teeth sank into Katsuki’s neck, sucking hard enough to leave a mark but not break skin. The alpha growled, but before he could retort, Izuku crashed their lips again together, his fingers tangling roughly into Katsuki's hair. The kiss was fiery, aggressive, and maddening, their teeth clashing as they fought for dominance.

Izuku pressed harder, managing to switch their position against the wall, the omega’s breath hot against his lips as he pulled back just long enough to hiss, “Weak, huh? Who’s the one losing control now, Kacchan?”

Katsuki’s retort was swallowed by another kiss, this one fiercer, as if Izuku was pouring years of frustration and fury into every movement. When Izuku nipped at his bottom lip and deepened the kiss, Katsuki let out a low, involuntary moan, his hands gripping Izuku’s hips tightly.

The sound only spurred Izuku on, a triumphant smirk curling against their lips. "Guess the big bad alpha’s not as tough as he thinks, huh?” he whispered breathlessly, his voice dripping with challenge. “Go wash yourself, Kacchan. I smell your cum in your pants.”

With that, Izuku pressed a soft kiss on the alpha’s cheek before arranging himself then came out of the washroom leaving the mortified Katsuki.

------

The tension at the table was clear, a silent war raging between Izuku and Katsuki. Izuku sat with a triumphant smirk plastered across his face, his chin resting casually on his hand, while Katsuki glared daggers at him from across the table. Their parents, oblivious to the storm brewing, chatted animatedly over the remnants of lunch.

As the waiter cleared the plates, Mitsuki leaned back with a satisfied sigh, fixing both boys with a pointed look. "You know, Inko and I have been talking about this for years," she began, a gleam in her eye that immediately put Katsuki on edge.

Inko chimed in, smiling warmly. "Mitsuki and I have always dreamed of being family. We’ve been sisters in everything but blood, and now that we have an alpha and omega son—well, it just makes sense to take that bond to the next level."

Izuku’s smirk faltered slightly, and he glanced at his mother, brows furrowing. "Wait...what are you—"

Mitsuki didn’t miss a beat, her voice cutting through. "We’re merging the companies." She sat straighter, exuding authority. "Inferno Fashion is the top name in fashion, and Everdale Textile is the backbone of the textile industry. A merger is inevitable. And what better way to solidify it than through marriage?"

The table fell silent.

"What the fuck old hag? A fucking marriage?" Katsuki barked, his voice sharp enough to draw attention from nearby diners. His chair scraped back slightly as he leaned forward, pointing a finger toward Mitsuki. "Like hell I’m marrying this nerd! Find another way to merge the companies."

Izuku wasn’t far behind. "Mom, you can’t be serious! Marriage for business? That’s outdated! We can just draft a partnership plan, there’s no need to drag me into this—"

Mitsuki’s smile turned sharp, cutting them both off. "This isn’t a negotiation, Katsuki. If you don’t mate and marry, you will not inherit the company. And don’t even think about testing me on this."

Katsuki’s jaw clenched, but Mitsuki wasn’t done. She turned to Inko. "And you know as well as I do that Everdale Textiles is struggling. A partnership isn’t enough to pull you out of the red."

Inko nodded hesitantly, her voice soft but firm. "Izuku, you know we’ve been struggling for years. Mitsuki’s company is the only way we’ll survive. This isn’t just about tradition; it’s about saving everything we’ve built. This could help our employees as well."

Izuku crossed his arms, his green eyes blazing with frustration. "Then draw up a proper partnership. We don’t need to get married to merge two companies."

For the first time, Katsuki agreed with him. "I hate it but he’s fucking right. I’m not tying my life to this loser just for some stupid merger."

“I don’t want a bully for a husband, too. I can’t even stand your smell!” Izuku retorted throwing daggers at the alpha’s direction. But Katsuki just flipped at him, making Izuku tremble in frustration.

Mitsuki smirked, clearly prepared for their protests. She pulled out a sealed envelope and placed it on the table with deliberate care. "You can’t weasel your way out of this. Your grandfather’s will is clear—only a mated Alpha can inherit the company. No mate, no title, no company. Period."

Katsuki stared at the envelope like it might explode. "This old paper can’t tie me, besides if I were to be mated, why does it have to be that shitty nerd?"

“I never even want to see your face again, more so marrying you, I’d rather die unmated!” Izuku pointed at him with sheer disdain.

Inko sighed, her hand reaching for Izuku’s. "Izuku, I know this isn’t what you want, but without this merger, we’ll lose everything. Please, just...think about it."

Before either young man could erupt again, Masaru spoke up, his calm tone cutting through the rising tension. "Alright, enough. Clearly, this is a lot for them to take in. How about a compromise?"

Mitsuki raised an eyebrow. "What kind of compromise?"

Masaru met both Katsuki’s and Izuku’s gazes, his calm demeanor softening the room’s hostility. "You both get married—on paper—for the sake of the companies. If it doesn’t work, there’s always the option of divorce. But first, to ensure this isn’t a complete disaster, try living together for three months. If you can manage to stay civil, then we move forward. If not, we’ll reevaluate."

Izuku and Katsuki froze, both opening their mouths to argue, but Masaru raised a hand to silence them. "This gives you both a chance to figure things out without being rushed into something permanent."

The room was quiet, the tension thick as both young men exchanged glances—Izuku still fuming but visibly caught off guard, Katsuki gritting his teeth but unable to argue against his father’s logic.

"Three months," Masaru repeated, his voice firm. "Can you handle that?"

Katsuki finally leaned back, crossing his arms with a scowl. "Fine. But don’t expect me to play house with this nerd."

Izuku rolled his eyes, muttering, "Like I want to play house with you, either."

Mitsuki smirked, clearly pleased. "Good. Then it’s settled. Three months. And if you survive without killing each other, we’ll plan the merging."

Both boys groaned in unison, much to the amusement of their parents.

-----

[Ten years ago]

The house was quiet—Inko had gone out for errands, leaving him alone for the day.

A sudden, impatient knock at the front door shattered the peace.

“Deku!” came Katsuki’s familiar, rough voice. “Open up, damn nerd! I’ve got shit to drop off!”

Izuku sighed heavily, trudging to the door. He opened it to find Katsuki standing there, holding a bag of neatly packed side dishes.

“My mom said to give this to you,” Katsuki grumbled, shoving the bag into Izuku’s hands before barreling past him into the house without waiting for an invitation.

“H-Hey, Kacchan, you can’t just—” Izuku started, but Katsuki was already kicking off his shoes and making himself at home.

“Shut it, Deku,” Katsuki snapped, scanning the room with his usual scowl. “Your place still looks like shit.”

Izuku’s grip tightened on the bag. “You already delivered it, say thanks to your mom and you can go.”

Katsuki ignored him, smirking as he looked around. “What? Afraid I’ll mess up your precious nerd cave?”

Izuku clenched his jaw and walked toward his room, deciding it was better to just leave Katsuki to his antics. But the moment he opened his door, Katsuki was right behind him, shoving his way inside.

“Get out, Kacchan!” Izuku snapped, but Katsuki was already making himself at home, picking up random manga from the shelves and flipping through them.

“What’s this crap? Still reading kids’ books?” Katsuki sneered, tossing a volume onto the bed before grabbing another.

Izuku followed him, silently picking up the mess Katsuki left in his wake. He tried to stay calm, but with each discarded book and mocking comment, his patience frayed further.

“You’re such a pain,” Izuku muttered under his breath, bending down to pick up yet another volume.

“What was that?” Katsuki’s sharp gaze turned toward him, daring him to repeat it.

Izuku straightened, clutching the manga in his hands. “I said, you’re a pain, Kacchan. Why can’t you just leave me alone?”

Katsuki barked out a laugh. “And miss seeing you sulk like the little weakling you are? Nah, this is too much fun.”

That was the last straw. Izuku grabbed a pillow from his bed and hurled it at Katsuki’s head.

The soft thud was immediately followed by a stunned silence.

Katsuki’s expression darkened. “Oh, you’re dead now, Deku.”

Before Izuku could react, Katsuki tackled him, and they tumbled onto the floor in a chaotic heap.

“Get off me, Kacchan!” Izuku struggled beneath him, his voice muffled as Katsuki pinned him down with ease.

“You’re the one who started this, you idiot!” Katsuki snarled, leaning over him. The young blond wrestled the young greenette, locking his arms and legs rendering him immobile. “Such a weak nerd, can’t get out? You wanna cry and call mommy?”

“Kacchan! Let go of me! Ugh!” Izuku wiggled hardly to be free, yet Katsuki’s hold was firm, and he put more weight to restrain fully the other.

Then it happened.

A sharp, overwhelming wave of warm spices and vanilla filled the air as Katsuki’s pheromones flared uncontrollably, washing over Izuku like a tidal wave.

“Kacchan—what are you—” Izuku’s voice faltered as his body suddenly weakened, his breathing hitching.

The room grew impossibly warm, the faint scent of lavender and honey blooming in the air. Izuku’s eyes widened in realization as heat coursed through him, leaving him dazed. “No…not now, please, please no…Kacc—let go…”

Katsuki froze above him, his pupils dilating as the scent hit him full force. “What the hell…” he muttered, his voice low and strained.

Izuku squirmed beneath him, his cheeks flushed, his voice trembling. “Kacchan… get off… I can’t…”

But Katsuki couldn’t move. His hands tightened on Izuku’s wrists, his breathing heavy as he stared down at the blossoming omega beneath him. The intoxicating scent clouded his mind, and before he knew it, he was leaning closer.

“You’re an omega,” Katsuki rasped, his voice laced with disbelief and something far more dangerous.

Izuku whimpered softly, his body betraying him as the heat intensified, pulling him deeper into the haze. “Kacchan…it’s hot…help me…”

Katsuki has smelled different omega pheromones, and he detests each and every one of them. Yet for some unspeakable reason, the nerd’s scent is reeling him in badly. “Fuck…your smell…damn nerd....”

Katsuki’s lips were on his, rough and demanding, as the room filled with the heady mixture of pheromones and unspoken tension.

They were only sixteen, and for the first time, they knew how fatal the pleasure an alpha and an omega together can bring.

After reaching climax once, they settled together facing each other. Sweat covered their body and other forms of liquid scattered on the floor.

“Kaccha—”

“Not a word, Deku. Wait here, clean yourself. Give me some clothes 'coz I’ve to run to the drugstore.”

Izuku nodded and picked their shredded clothing and threw them in the bin, he also got some spare clothes for Katsuki and hurriedly went to the bathroom. He looked at himself in the mirror, he was full of bite marks, and he can still feel the loaded cum of the alpha dripping from him. He turned away and washed his now blemished body.

When Izuku came out, Katsuki was sitting on his bed, clutching a small paper bag, “Here, drink it now.”

Izuku opened that bag and saw a pill. “What’s this?”

“Emergency pill. Unless you want to bear my pup, Deku. Which I fucking don’t.”

“As if I want to, I’d never want anything from you.” Izuku drank the pill and Katsuki went home.

----

What happened once, happened thrice and continued until they reached eighteen. They hated each other, sure. But the call of their bodies and their scents clinging to one another is different story.

“Ahh—Kacchan! No…no more…I can’t continue…”

Katsuki ignored the omega’s wailing and continued to pound him harder, he raised Izuku’s hips and angled deeper. “Fuck…stop squeezing hard, you’ll break my dick off…”

Izuku on his fours, spread his legs wider and raised his hips for Katsuki to hit his spots. “There…Kacchan---no, not so fast…nggghhh…I’m cumming…oh gods---”

“Cum for me nerd, you want my knot? Fucking scream.” Katsuki gripped tighter and slammed deeper, faster, and harder his alphan cock towards the omega’s dripping hole.

“Ahh—Kacchan! Kacchan! Kaccha—nggghhh….” Izuku’s vision blurred out as he reached his orgasm and spurts of white showered the mattress.

Katsuki not long after, popped his knot and continued shooting his load. His body slumped over the tired omega. Their bodies connected through a knot. “Fuck…I fucking hate you, Deku.”

“Ugh…get away from me. Why did you even come today, we already did it a week ago. Stop coming to my house.”

“Haa…you’re the one calling me in. Parading your awful smell around the neighborhood. Like a bitch in heat.”

“Excuse me, it's not me. It's your pheromones which are disgusting. I have to air my room again because of your stink.”

“Hah fuck you, Deku. Go die.”

“No, you die first and make my life peaceful. Take your knot and don’t come back!”

When Katsuki’s knot deflated, Izuku pushed him away and went inside the bathroom to take a shower. The young alpha removed the condom he was wearing and threw it away. He also opened the window to air out.

Izuku went out of the shower and saw Katsuki fully dressed, looking at his framed picture when he was young, carried by Inko. He glared at him for a while and continued drying his hair. Then he remembered something.

“We’re moving out. My mom found a new job, we’ll be moving to a different city.”

Katsuki was startled a little, he put down the portrait and answered curtly, “Good riddance.”

Then he walked out without giving a glance to the omega. Izuku watched him walking away from his window and thought that would be the last time he will saw the alpha. “Good riddance, too.”

They’re not friends, they’re not mates and definitely not lovers. They’re just typical alpha and omega who fulfill each other’s desires.

----

[Back to present]

The apartment was spacious and modern, situated strategically between their respective companies. Its neutral tones and sleek furnishings reflected neither of their tastes but exuded an air of sophistication. The living room, with its plush gray sofas and glass coffee table, felt eerily quiet as Katsuki and Izuku sat facing each other, the weight of their situation hanging heavily in the air.

It was the first day of their new arrangement, and neither seemed thrilled about it.

Izuku crossed his arms, his green eyes narrowing slightly. “Okay, let’s get this over with. Ground rules.”

Katsuki leaned back against the couch, his arms sprawled across the top like he owned the place. “Tch. Fine. Rule one: no one goes into the other’s room. Ever. I don’t care if it’s on fire, stay the fuck out.”

Izuku nodded, scribbling it down on a notepad he’d pulled out. “Agreed. Rule two: no bringing friends or... partners over. This is neutral territory.”

Katsuki shot him a side-eye glance. “Partners? As if. But yeah, no fucking randos in my space.”

Izuku ignored the jab, continuing. “Rule three: alternate cooking schedules. You handle one day, I’ll handle the next. And every weekend, we clean the house together.”

“Fair enough,” Katsuki grumbled, though his tone was laced with annoyance. “But don’t expect me to eat your nerdy health food crap.”

Izuku’s lips twitched into a smirk. “And don’t expect me to stomach whatever spice-loaded monstrosity you call food. We’ll survive.”

Katsuki snorted but said nothing.

Izuku took a breath before addressing the inevitable. “Rule four: if either of us is nearing a heat or rut, suppressants must be taken. No exceptions. And absolutely no... helping each other.”

The room grew still for a moment as the words sank in. Katsuki’s crimson eyes burned into Izuku, a sharp smirk tugging at his lips. “As if I’d ever need your help, nerd. But my door will be open if you came crawling, calling out alpha, please fuck me.”

Izuku flushed slightly but refused to back down. “I would never dream of it. So we’re clear on that.”

The silence that followed was tense, the kind that made the ticking of the wall clock seem deafening.

Izuku set the notepad down, meeting Katsuki’s gaze head-on. “This doesn’t have to be hard. If we stick to the rules and stay out of each other’s way, these three months will fly by.”

Katsuki tilted his head, his smirk fading into a more serious expression. “Yeah, well, just don’t get in my way, and we’ll be fine. We just need to fucking show them that we can live without killing each other, have the marriage papers signed up, I’ll be the CEO of Inferno, you got a partnership, and then after a month, I’ll send you the divorce papers.”

“Glad we’re at least on the same boat. I am doing this for my company, so stay away from me.”

They glared at each other for a while until Katsuki smirked and raised his brow. Izuku abruptly stood and saddled on the alpha’s lap and encircled his arms on the alpha’s neck. “I told you that I hate your smell. Will you ever control it, huh Kacchan?”

“In your dreams, I like seeing you squirm, slutty Deku.”  Katsuki placed his hands on Izuku’s waist and pulled him closer, he buried his nose on Izuku’s neck. “I hate your smell too, stop stinking the place, fucking omega.”

“Say that when you can control your dick from bulging. What’s this pressing on me, Kacchan? Aww little alpha can’t control his peepee?”

“Fuck you, nerd.” Katsuki bit on the omega’s shoulder and inserted his fingers in the slicking hole of Izuku. “Wearing skimpy shorts for easy fuck. Typical of you, nerd. It’s fucking wet, Deku. You want to be filled like a fucking whore.”

“No, shit. Don’t---stop Kacchan! Ngg…don’t push more, shit.” Izuku pressed his nose on the alpha’s neck inhaling more fumes of warm spices and vanilla.

“You say stop but your ass is wiggling and sucking my fingers in. Do you want me to fuck you, Deku? Just say the word and I’ll pound you hard and good, just how you like it.”

Izuku did not answer, yet he just moaned at Katsuki’s ear, “Kacchan…I hate you. Fuck! I hate my body, too.”

“Right back at you, nerd. I fucking hate you with all my life.”

Katsuki hastened his movement. He rubbed on Izuku’s wet shorts as well as fingering fast the clinging omega. In a moment, both shuddered as they climaxed together. Izuku cupped Katsuki’s face and kissed him. Tongues lapping together and tasting each other.

The omega broke off from the kiss and bit the alpha’s lower lip, “You’ll never be my mate, I hate you, Kacchan.”

Then he stood up and went into his room. Katsuki followed his direction for a while and then leaned on the sofa and closed his eyes, “As if I want you to be my mate.”

-----

Izuku was buried in a stack of paperwork, his pen tapping impatiently against the desk. His office was well-decorated—modern, efficient, with clean white walls and sleek wood furniture. A small indoor plant sat by the window.

He was submerged with paper works yet his mind kept drifting to the sinful smelling alpha in their current home. He promised himself to never be swayed again by Katsuki’s scent. He truly hates the alpha and never wants to meet him again, which is why when his mother suggested to move out of the neighborhood, he agreed in a heartbeat.

He took up self defense training and pheromone reaction training. He was confident that if there are alphas nearby trying to use their pheromones to him, he can control his reactions and defend himself.

However, Katsuki is an enigma. Izuku knew that it was a long shot, he knew since they’re teens that Katsuki is different.

“Wake up, Izuku! You’re no longer a teenager. He’s just another alpha. You have refused so many of them. Kacchan is not different. What happened in the living room will be the last. You cannot get drunk with his scent again.” After his mantra, Izuku controlled his breathing to calm down and relax his mind.

A knock broke the silence.

“Enter,” Izuku called without lifting his gaze from his laptop.

The door opened, and there stood his alpha housemate. His blond hair was perfectly styled, his sharp features radiating confidence as he stepped into the space like he owned it. His suit was crisp, his gaze piercing.

Izuku’s shoulders slumped. “Kacchan,” he muttered under his breath, setting his pen down.

Katsuki didn’t waste time. He stepped into the office with his arms crossed and his sharp voice cutting the air.

“Damn nerd,” he began, his voice hard, “this place? God, it looks like it was designed by a high school art class trying to win a participation ribbon.”

Izuku froze mid-motion, glaring at Katsuki. “Excuse me?”

Katsuki gestured at the white walls and minimalist decor. “This. It’s too clean, too safe. A corporate space like this should feel strong, powerful, not... cozy. You want to impress clients, you’ve got to make them feel the power of your company the second they walk in.”

Izuku stared at him for a moment, blinking. “Are you seriously criticizing the walls right now, Kacchan?”

Katsuki shrugged. “I’m saying, it needs work.”

Izuku leaned back in his chair, arms folding, his tone turning sharp. “Oh, you think you can do better? This is how my company runs. Not every company has to scream ‘look at my muscles’ like you probably prefer.”

Katsuki narrowed his gaze, stepping toward Izuku’s desk, voice rising. “Hah. You’re lucky I’m even bothering to learn about your operations. Your design choices? I can’t believe you’d think this is acceptable.”

Izuku leaned forward, his voice a challenge. “Well, maybe if you stopped playing CEO and learned to respect other people’s style choices instead of shoving your opinions everywhere, you wouldn’t be so damn annoying.”

“Your face is annoying.” Katsuki retorted childishly.

“What? Are you just here to criticize our company design? If so, you can see yourself out.” Izuku surrendered and went back to his tablet.

“Tch, give me a tour, I need to at least know what’s going here if our companies merged. You also need to start introducing me as your alpha with your current business partners. They should know that my decision will be valuable soon.” 

Izuku stared at him in shock, a bit overwhelmed yet a bit repulsed. “Wow, such a bastard king. I appreciate your concern knowing more about Everdale, but you don’t have to phrase it like you’re the one managing my company, soon.”

“Whatever nerd, I will still be your alpha in paper, so you better work on it.”

Izuku just glared at him but maintained composure. He stood up, “Fine. Follow me.”

But before they were able to reach the door, Katsuki wrapped his arms around Izuku’s waist. “Your office stinks of you, nerd. I don’t want to stay here even for a second.” Yet Katsuki was tracing Izuku’s neck with his nose inhaling his scent.

“You have the foulest scent in the whole fucking universe. It makes me want to vomit.”

Izuku fumed in his head, “If you fucking hate it, get away from me before I make you.” Yet contrary to his words, he was leaning away to make more space for Katsuki to smell him.

Katsuki chuckled darkly, “It’s amusing how you throw threats, yet your body does otherwise.” He is now unbuttoning Izuku’s polo to reveal more skin and started lapping on his shoulders.

“Mmm---Kacchan—are you talking about yourself? You said you hate it, but you can’t even get enough of it. Fuck---there…”

 Katsuki pulled on the omega’s hair to face him and dipped down to take the omega’s mouth with his. The kiss was bruising obviously both wants to gain control. “Heed, Deku, submit to me.”

“Never, fuck you Kacchan.”

Katsuki lifted Izuku and laid him to his desk, “Present to me, omega.” Katsuki’s voice went down an octave sending Izuku shivers, yet he refuses to listen. “No way. You’re not my alpha.”

Katsuki gritted his teeth and fully unbuttoned Izuku’s polo. He went down to bit on his neck and sucked hard making sure it’ll purple. He then went further south taking Izuku’s perked nipples.

“Haaa---Kacchan! No…don’t…nggg…” Izuku tried to remember all his training to reject Katsuki’s pheromone over him yet to no avail, his body willingly succumbs to the comforting and maddening embrace of warm spices and vanilla.

Katsuki continued sucking and biting all over Izuku’s flesh like a mad dog. He then unzipped his pants and lower it to his ankles. “You’re fucking wet, Deku. I can smell your slick pouring.”

“S-shut up! Just fucking hurry up, I still have to give you a tour.”

Katsuki smirked and lowered Izuku's boxers freeing his cock. “You’re wet front and back, Deku. You sure you won’t present to me?”

“Over my fucking dead body, I will never sub---ahhh!” Katsuki swallowed him whole. He sucked on the omega’s cock deliciously that Izuku’s brain is melting. “Not at the same---Kacchan---shit...it feels good…”

Katsuki gulped him down as he pressed his digits inside the wet pulsing hole of the omega. The wetness creates a squelching sound, indignant and filthy.

“Shitty nerd, your hole is begging me to enter.” Katsuki positioned his dick on the Izuku’s ass, but Izuku stopped him, “No, condoms…don’t enter me raw…”

Katsuki frustratingly relented and grabbed his legs instead. “Squeeze your thighs, nerd.”

He then slid in between, rubbing his dick over Deku. The feeling simulated real fucking and Izuku felt ecstatic. He squeezed his thighs harder. “No—your fingers. Take it out, Kacchan!”

Katsuki pressed his fingers again inside the omega’s hole as he slid in between the omega’s legs. Katsuki moved faster and Izuku’s moans were filling the room. As the squelching sounds became more profound, they both sullied Izuku’s desk.

They panted heavily and gazed at each other while questioning themselves, why the fuck can’t they take their hands off each other?

Office tour forgotten.

----

Katsuki had just returned from work, his jacket slung over his shoulder as he kicked off his shoes. He barely made it to the kitchen when Izuku appeared out of nowhere, leaning against the counter with an exaggerated pout.

"Kacchan," Izuku started, his voice unnaturally soft and sweet.

Katsuki froze, narrowing his eyes. "What the hell do you want, Deku?"

"I was just thinking…" Izuku clasped his hands together, his green eyes sparkling with faux innocence. "You’re such a great cook, and I’m, well, not feeling my best. Maybe you could make dinner tonight?"

Katsuki’s eyebrow twitched. “No way. It’s your turn to cook, and I’m not about to pick up your slack just because you’re whining.”

Izuku’s smile faltered, and the sweet tone vanished. “Come on, Kacchan! I’m literally dying here! My heat’s coming up, and I feel like crap. Just this once?”

“No,” Katsuki said flatly, brushing past him to grab a bottle of water.

Izuku stomped his foot, his voice rising to a dramatic whine. “Kacchan! Please? You can’t let me starve! Do you want me to collapse in the middle of the living room? Is that what you want?”

“Deku, you’re so damn dramatic,” Katsuki grumbled, glaring at him.

Izuku, not one to back down, upped the ante. His eyes glistened with tears as he sniffled, the picture of pitiful despair. “You’re so mean, Kacchan. All I wanted was some help, and you—” His voice cracked as he dramatically slid down the wall, sitting on the floor with a loud huff.

“Oh, for fuck’s sake!” Katsuki barked, throwing his hands in the air. “Fine! Stop crying like a damn baby. I’ll cook.”

Izuku’s face lit up instantly, the tears vanishing as quickly as they had appeared. “Thank you, Kacchan! I still hate you but you’re the best! I’m craving kimchi stew with pork belly.”

Katsuki grumbled under his breath as he rummaged through the fridge. “Fucking drama queen.”

He ended up cooking the food, the heat level dialed back but still spicier than what Izuku typically handled. The rich aroma filled the apartment, and by the time Katsuki set the bowl in front of Izuku, the omega was practically bouncing in his seat.

“This smells amazing!” Izuku beamed, grabbing his chopsticks. He took a bite, his face lighting up with delight. “It’s so good! Kacchan, you’re a genius!”

Katsuki grimaced, sitting across from him. He is a goddamned walking mood swing. “Shut up and eat.”

Izuku, however, was too giddy to stay quiet. “Seriously, thank you! You’re so thoughtful.” He leaned across the table and, without thinking, kissed Katsuki softly on the cheek.

The room went silent.

Katsuki froze, his chopsticks hovering mid-air. Slowly, he turned to look at Izuku, his face a mix of shock and incredulity. “What the fuck was that?”

Izuku blinked, his cheeks turning pink. “I was just… um… thanking you?”

“Thank me without being weird about it!” Katsuki snapped, his face flushing despite his harsh tone and acted wiping the spot, but deliberately missing it.

Izuku pouted, mumbling, “You’re so ungrateful, Kacchan.”

“And you’re a goddamn pain in my ass, Deku,” Katsuki growled, shoving another bite of stew into his mouth to hide the faint smile tugging at his lips.

----

Izuku stepped into the towering headquarters of Katsuki's company, his green eyes bright with curiosity. This was supposed to be a surprise visit—a small act to match Katsuki’s begrudging tour of his office. Yet the moment he crossed the threshold, an unsettling tension gripped the air.

The unmistakable scent of pheromones hung heavily around him, cloying and saccharine. It didn’t take long for Izuku to piece it together—a staff omega had gone into heat.

Nearby alphas shifted uneasily, their composure slipping as the pheromones overwhelmed them. Some clenched their jaws, others exhaled sharply through their noses in a feeble attempt to keep their instincts in check. Izuku stood rooted to the spot, his own omega instincts sending a sharp jolt of unease through him.

And then he saw him.

Katsuki stood at the center of the commotion, his commanding presence cutting through the tension like a blade. His red eyes narrowed as he barked orders.

“All alphas, out! To the far room, now! I don’t care how strong you think you are—move!”

The alpha's growl left no room for argument, and the alphas quickly obeyed, retreating as staff handed out suppressant injections. Katsuki didn’t flinch as he strode toward the trembling omega, his calm demeanor an anchor in the storm. With surprising gentleness, he handed the staff member off to the company nurse, who arrived moments later to take charge.

Izuku blinked, his heart still racing as he watched Katsuki handle the chaos with efficiency and precision. Relief swept through him, and before he could think twice, he was moving—stepping into Katsuki’s line of sight.

The blond’s sharp gaze snapped to him instantly, his brows furrowing in surprise before he strode forward. Without a word, Katsuki grabbed Izuku by the wrist and pulled him toward his office.

Inside, Katsuki shut the door with a soft click, letting go of Izuku’s wrist as he turned away.

“How?” Izuku finally asked, his voice soft but brimming with curiosity.

Katsuki frowned, his expression darkening. “Hah? The hell are you on about, Deku?”

“How did you not react?” Izuku clarified, stepping closer. “You didn’t even flinch. An omega in heat… and you—”

“Didn’t lose my shit?” Katsuki cut him off, his tone laced with irritation. He scoffed, crossing his arms. “What, you think I’m some weak-ass alpha who can’t handle his instincts?”

Izuku’s brow furrowed. “It’s not about that, Kacchan. It’s just… impressive. Most alphas would’ve—”

“Most alphas aren’t me,” Katsuki interrupted, his voice low and firm. He turned, his crimson eyes locking onto Izuku’s. “I’m not some pathetic animal who lets a little scent control me.”

Izuku stared at him for a moment, unsure whether to be exasperated or impressed. The alpha's unwavering confidence—borderline arrogance—was as infuriating as it was admirable.

“Of course, you’d say something like that,” Izuku muttered, shaking his head.

“Tch.” Katsuki rolled his eyes but smirked faintly. “You’re damn right I would.” Then he walked towards the coffee machine to make two cups.

Izuku, possessed by a vixen, walked slowly behind his back and whispered to the blond’s ear, “But how can you not handle my scent then? Hmm?”

“Tch. The others won’t gain a reaction from me but yours does, that’s why I hate it. I hate you, shitty nerd.” Katsuki continued his coffee making when he felt naughty hands clawing towards his erection.

“The fuck do you think you’re doing?” Katsuki paused for a while and turned sideways, meeting eye to eye, glistening jades.

“Nothing, just copping a reaction. Oh, I want milk in my coffee and two sugar cubes.” Izuku answered sheepishly yet his hands unbuttoning the slacks of the alpha.

Black slacks fell down the floor, yet Katsuki paid no mind. He continued making the coffee and letting Izuku do what he wants. Izuku moved in front of him and kneeled. He felt a cold breeze when his cock sprang free, courtesy of the omega whore.

“Open your mouth, nerd.”

Izuku complied and opened his mouth with tongue out, then Katsuki pushed himself in. His massive cock immediately filled the tiny mouth of the omega. “Are all your holes tiny, nerd? I want to wreck ‘em all.”

“Mmyu cn cry (You can try)…”

Katsuki put down the cups and held the head of the omega and rammed his dick. Izuku was gagging yet he did not relent and allowed Katsuki to fuck his mouth.

“Ahh fuck…your mouth is so good. Fuck, nerd. Haah---”

Izuku used his two hands to pump Katsuki faster while his tongue lapped him and sucked him up. After a few more thrust, Katsuki came in his mouth and Izuku gulped it all.

Seeing Izuku swallowed him all, Katsuki chuckled darkly and lifted the omega to slam him down the couch. “Did you just come here to be fucked?”

“No, I came here to surprise you and to ask for a tour.”

“Forget the tour, I’m gonna fuck you good.”

“All bark, no bite.”

Katsuki grabbed his hair harshly to meet him in the eyes, “You’re so good in talking back now, shitty nerd.”

“You like me better this way.” Izuku snaked his arms around Katsuki’s neck to pull him even closer.

“No, I hate you even more.”

“Good, I feel the same. Now fuck me, Kacchan.”

Then, again the office tour forgotten.

----

Katsuki stepped into their apartment, his usual scowl softening slightly as the scent of home-cooked food wafted through the air. The greenette stood by the dining table, placing the last dish—a perfectly grilled salmon—next to a bowl of steaming rice.

“You’re late, Kacchan,” Izuku called, not looking up.

“Tch. Work,” Katsuki grunted, slipping off his shoes. He eyed the meal with a mixture of surprise and appreciation. “Smells decent.”

“Don’t push it. Sit and eat.”

Dinner was quiet, save for the clinking of chopsticks against plates. Katsuki grumbled about the seasoning, but he finished every bite. Izuku rolled his eyes but didn’t comment, hiding a small smile.

Days later, Katsuki was hunched over his desk in the study, papers and files stacked high. He barely noticed the door opening until a familiar scent reached him.

“Coffee,” Izuku said, setting the mug beside him. “You’re welcome.”

Katsuki didn’t look up. “Don’t need your help, Deku.”

“I’ll take it back, then,” Izuku retorted, reaching for the mug. Katsuki grabbed it before he could.

“Shut up and leave it.”

Izuku chuckled softly, retreating without another word.

----

The living room lights dimmed as the pair sat on the couch, a movie playing on the screen. Izuku leaned against Katsuki, their shoulders touching as they shared a bowl of popcorn.

“You’re hogging the blanket, Kacchan.”

“Then get your own, dumbass.”

Izuku tugged at the fabric until Katsuki gave up, grumbling under his breath. By the end of the movie, they were tangled together, Izuku’s head resting on Katsuki’s shoulder, Katsuki’s arm loosely draped around him.

That night, Izuku lay in bed, scrolling through his phone when his door creaked open. He sat up, startled, as Katsuki wordlessly stepped inside.

“Kacchan, what—”

“Move over.”

Izuku blinked but complied, scooting to one side. Katsuki climbed in, facing away from him.

“You’re breaking the rules,” Izuku muttered.

“Shut up and sleep.”

The next night, it was Izuku’s turn. He crept into Katsuki’s room, holding his breath as the blond stirred. Before Katsuki could react, Izuku climbed in beside him, pulling the blanket over both of them.

“You serious right now?” Katsuki grumbled, his voice heavy with sleep.

“Shut up and sleep,” Izuku whispered back, throwing his arm over Katsuki’s waist.

By morning, they woke tangled in each other’s warmth, Izuku’s head tucked under Katsuki’s chin.

“Breakfast,” Katsuki muttered, gently nudging Izuku awake.

“Mm… Five more minutes,” Izuku groaned, burrowing deeper into Katsuki’s chest.

“Get up, you lazy nerd.”

As the routine went domestic, both Izuku and Katsuki fully accepted each other’s presence. Over dinner one evening, Katsuki set his chopsticks down, his gaze sharp but unreadable.

“Deku,” he said abruptly.

Izuku looked up. “What?”

“Do you hate me?”

The question hung in the air, startling Izuku. He frowned, but his answer came without hesitation. “Yes, I do.”

Katsuki didn’t flinch. Instead, he pulled a small box from his pocket and placed it on the table.

“Then, marry me.”

Izuku’s jaw unhinged as he opened the box, revealing an emerald ring. He picked it up, examining it under the light.

After a moment, he slipped it onto his finger. “Fine. I guess I’ll never find someone I hate as much as you.”

Katsuki smirked. “Damn right you won’t.”

----

The apartment was tense, a storm of emotions brewing under polite smiles as the parents sat around the living room. Mitsuki, bold as ever, spoke first.

“Listen, brats,” she began, arms crossed and her piercing gaze fixed on Katsuki. “This isn’t a joke. If you’re not serious about this marriage, just say so now. Just don’t kill each other.”

“Mitsuki,” Inko said softly, placing a hand on her friend’s arm. Her eyes were filled with worry as she turned to the couple. “I believe it’s impossible then. It’s only been two months, and these things… they take time. Maybe we rushed you both into this. If you’d rather wait—if you think there’s a chance—”

“We’re willing to give you more time,” Masaru added calmly, his tone steady and diplomatic. “This arrangement was always about giving you two a chance to figure things out, not forcing you into something you’ll regret.”

Katsuki clicked his tongue, slumping against the couch with a scowl. “Tch. Don’t bother. It ain’t happening.”

Mitsuki’s eyes narrowed. “What the hell do you mean by that, Katsuki?”

“I mean, it’s impossible,” Katsuki shot back. “I’ll never like Deku. Not now, not in three months, not even if you give us a damn year.”

Izuku, sitting beside him, crossed his arms. “And I’ll never like him either. Even if I die, I’ll never like this arrogant, loudmouthed alpha.”

“Izuku—” Inko started, her voice heavy with sadness.

“Oh, for crying out loud!” Mitsuki barked. “You two are hopeless. Why are we even bothering—”

“Because I’m marrying him anyway,” Katsuki interrupted, leaning forward and smirking.

“What?” the three parents said in unison, their voices a mix of confusion and disbelief.

Izuku stood and sat on Katsuki’s lap, leaning on his alpha’s chest. The blond openly wrapped his arms on the greenette’s waist. Then Izuku raised his left hand, displaying the emerald ring on his finger. “That’s right,” he declared, his voice steady and laced with mock bravado. “You need to start planning a wedding. I’m finally marrying the alpha I hate the most.”

Katsuki snorted, burying his nose on Izuku’s neck. “Hah. I hate you too, nerd.”

The room fell into stunned silence before Mitsuki broke it with a loud laugh. “Unbelievable. You’re both insane.”

Inko pressed a hand to her heart, torn between relief and exasperation. “Oh, Izuku, Katsuki…”

Masaru simply smiled, shaking his head. “Well, I suppose this is… progress? I honestly don’t understand what’s happening.”

Izuku glanced at Katsuki, their gazes locking for a moment. Despite the venom in their words, there was an unspoken understanding—a spark that neither would admit but couldn’t deny. Katsuki cupped Izuku’s face and planted a soft kiss on his lips.

“Oh shit, I don’t need to see this. I’m out. I’m gonna call our planners now.” Mitsuki stood quickly refusing to see his son and son-in-law eating each other out.

Inko was a bit flustered and followed Mitsuki in haste and Masaru smiled at them, both lost in their own world, then left.

----

The ceremonial hall buzzed with hushed whispers, the attendees uncertain whether they were about to witness a union or a battle. Katsuki stood tall at the altar, his sharp features framed by the soft glow of the lanterns. His blond hair was combed back, but the trademark scowl on his face made it clear this wasn’t a romantic affair.

Izuku approached, clad in a simple but elegant suit. His green hair was slightly unruly despite his attempts to tame it. He glared at Katsuki as if daring him to make a comment about it. Katsuki didn’t disappoint.

“You look like you fought a hurricane, nerd,” he muttered as Izuku stopped beside him.

“And you look like a cow styled your hair, Kacchan,” Izuku snapped back with a huff.

The officiant cleared his throat, drawing their attention. “If the couple is ready, we shall proceed with the vows.”

Katsuki smirked, his crimson eyes glinting. “Deku first. Let’s hear it.”

Izuku straightened his shoulders, glaring up at Katsuki. “Fine.” He took a deep breath and began, his voice firm.

“I, Izuku Midoriya, take you, Kacchan, as my husband. Not because I want to, but because I can’t think of anyone else who pisses me off as much as you do. You’re loud, obnoxious, and your cooking is your only redeeming quality.”

There were a few gasps from the audience, but Izuku pressed on.

“But if I have to deal with someone for the rest of my life, I’d rather it be the person I know how to handle. So, I promise to argue with you, to call you out when you’re being a jerk, and to never let you think you’re better than me.” He paused, then added with a smirk, “Because you’re not.”

Katsuki snorted, clearly trying to hide the twitch of his lips. He stepped forward, shoving his hands in his pockets as he began his own vows.

“I, Katsuki Bakugo, take you, Deku, as my… whatever. Not because I like you—hell, I can’t stand you—but because I know no one else would survive me, and no one else would survive you. You’re annoying, whiny, and you suck at holding your own in an argument. So, I’ll be charitable and take you in.”

Izuku’s eyes narrowed, but Katsuki didn’t stop.

“But if I’m gonna be tied to someone for life, it might as well be the dumbass who’s been pissing me off since we were kids. I promise to call you out when you’re being stupid, to never let you slack off, and to remind you every day why I’m better than you.” He smirked, leaning closer. “Because I am.”

The officiant blinked, clearly unsure if he should proceed. “Do you both promise to uphold these… unique vows and stay together as long as you shall live?”

“Yes,” they said in unison, their voices dripping with defiance.

“You may now kiss—”

Katsuki didn’t wait for the words to finish. He grabbed Izuku by the collar, pulling him into a heated kiss that was less tender and more a declaration of war. Izuku fisted his husband's collars back and pulled him closer, not surrendering, ever.

The guests erupted into a mix of cheers and nervous laughter.

When they pulled apart, Katsuki smirked, his thumb brushing Izuku’s cheek. “Tch. Still hate you, nerd.”

Izuku glared, his cheeks flushed. “Hate you more, Kacchan.”

And with that, they turned to face their audience, hand in hand, ready to tackle newlywed life—begrudgingly.

----

The moonlight poured through the large windows of their seaside villa, the sound of waves crashing against the shore providing a soothing backdrop. Katsuki leaned against the headboard of the massive bed, shirtless and in sweatpants, scrolling aimlessly on his phone while Izuku finished showering.

The door to the bathroom creaked open, and Katsuki looked up, ready to bark at Izuku to hurry up. But the words caught in his throat.

Izuku stepped out, his damp green curls clinging to his forehead, wearing nothing but a thin robe that barely clung to his shoulders. His skin glowed faintly from the steam, and his bare feet padded softly against the floor as he approached the bed. Swirls of lavender and vanilla hit him strongly that he instantly salivated.

“What’re you lookin’ at, Kacchan?” Izuku teased, his voice lower and more confident than usual.

Katsuki’s eyes narrowed, his lips curving into a smirk. “You. What the hell are you up to now, nerd?”

Izuku didn’t answer immediately. Instead, he untied the belt of his robe, letting it slip off his shoulders and fall to the floor. The lingerie beneath—white lace, intricate and delicate—left Katsuki speechless.

“I thought I’d make tonight… memorable,” Izuku said softly, his cheeks flushing but his gaze steady. He climbed onto the bed, straddling Katsuki in one smooth motion.

“Damn nerd,” Katsuki muttered, his hands instinctively resting on Izuku’s hips. “You really know how to get under my skin.”

“Good,” Izuku replied, leaning in until their noses almost touched. “Because I’ve decided that tonight, you’re going to let me take the lead.”

Katsuki’s grin widened, his crimson eyes darkening with challenge and amusement. “Oh yeah? Let’s see if you’ve got what it takes, Deku.”

Izuku kissed him and inserted his tongue, Katsuki let him dominate and enjoyed Izuku’s assertiveness. “Hmm…not bad, baby.”

“Am I your baby now, Kacchan?” Izuku bit the alpha’s lower lip earning a low growl. “Yeah, my slutty baby.”

Izuku then moved towards his neck where the base of the pheromones situated, Katsuki let out a wave of warm spices and vanilla mixing with Izuku’s lavender and honey that evokes the feeling of sitting by a warm hearth on a spring evening, surrounded by blooming flowers and enjoying a spiced dessert with honey drizzle.

“Your scent makes me crazy, Kacchan.” Izuku continued sucking on the scent gland, tasting the aroma.

“Hah, I’ve been crazy of yours since we're sixteen.” Katsuki murmured while caressing Izuku’s plump ass.

Izuku then left trails of kisses from his neck to his chest and captured one nipple. The alpha squirmed yet Izuku did not let go. He pinched the other one and bit lightly the other.

“Fuck, De-Izuku! Shit---” Katsuki’s bulging shaft is pressing deeper in Izuku’s dripping hole.

After Izuku’s fun time creating map on Katsuki’s neck and chest, he straddled the alpha with legs spread wide. He moved his panties sideway and showed his weeping hole to the alpha. He then put two fingers in, fucking himself.

“Hnghhh---Kacchan…look at me…ahh.”

Katsuki freed and palmed his bulging cock with the tip leaking with precum. His eyes locked on Izuku's mouth to his nipples peaking in the bralette down to his weeping cock and finally to the fingers fucking the omega fast and wet. Katsuki was panting hard, matching Izuku's breathy moans and whimpers. "Haa fucking bitch. I'm gonna fuck you to death you'll gonna crawl."

Izuku kept moving his fingers inside and out and moaning sinfully. "Kacchan...look at me more. Look here..." Izuku spread his legs wider for Katsuki to watch him fuck himself. 

His pheromones spiked more making Katsuki delirious. “Goddammit, fucking put my dick in or I’ll put my whole arm in.”

Izuku chuckled weakly and removed his fingers. He positioned himself. Rubbing his slicked hole to Katsuki's aching dick. “How many pups should we make, Kacchan?”

Katsuki shivered with the thought of Izuku round with a pup. His pup. His knot prompted to swell yet held himself. He was about to shoot one so he bit his lip, “Five, ten, fucking hundred, just put my damn dick in, nerd!”

Izuku sat down and Katsuki’s cock sheathed in. “Ahh shit Kaccha---fucking hot. You're so hot, baby.” The omega moved his hips lewdly riding the alpha’s balls, slowly at first, feeling the fullness of the alpha's massive length. Then he used more strength bouncing as he wiggled his plump ass more. “Ahh---Kacchan…so damn big. Such a big boy.”

“Shut your mouth, Izuku! Fuck!” Katsuki gripped tighter on his wife's hips and started moving to match his whore of a wife. He pushed himself upward angling himself, hooking his omega in.

Izuku put his weight on Katsuki’s chest and lifted his ass more just to slam it down. Both he and the alpha moaned in ecstasy as Izuku kept repeating his ministration. “Ahh…Kacchan…I want a baby…your pup. I want it.”

“Fucking mouth, Izuku. Move your hips, baby, don’t fucking stop. Shit! My knot’s popping. I'm breeding you pups, fuck--Izuku take my knot.”

“Knot, knot, knot. I want it. Kacchan, I will hate you forever if you won’t give me your knot.” Izuku practically bounced like on yoga ball slotting himself while opening more to cater the alpha's length. "I can feel your cock here, baby. Hit it more, shit..." Izuku traced the active bulging of his husband's cock on his stomach.

Katsuki lifted his hips more urgently to meet Izuku’s riding. Making sure to angle properly and hit Izuku's womb. Slapping of flesh echoed on the walls together with the whimpers and grunts of the newlywedded couple. Izuku felt Katsuki’s dick clawed in his womb, reaching depths more than ever. “Kacchan…I’m close. Faster!”

“You move faste---ahh fuck! Deku, I'm...” Katsuki’s knot popped and he trembled as he released load and loads of cum in Izuku’s womb.

Izuku was also in euphoria as he was drunk in Katsuki’s pheromones, his orgasm climaxed that he quivered voicelessly, unable to utter even a syllable as if his life was sucked out of him. His womb was hard-knotted with overflowing seed.

It was just the first round. 

By the time the first light of dawn filtered through the curtains, the two lay tangled together, breathless and satisfied. Katsuki pressed a soft kiss to Izuku’s forehead, murmuring, “You’re still a damn nerd.”

“And you’re still a stubborn jerk,” Izuku replied, his voice laced with affection. "...I think I'm pregnant."

"Tch. You should be. I bred you fucking good." Katsuki hovered his hand over Izuku's belly and rubbed it slowly. "Soon."

"I hate how good you fucked me. I hate everything about you." Izuku muttered, yet nuzzled on his alpha's chest.

"Shut up, shitty nerd. Just be pregnant and give me my pup." Katsuki pulled him close and embraced him tightly. "Slut."

"Fuck you, jerk." Izuku chuckled lightly as sleep washed over him.

Neither would admit it, but in that moment, hate had never felt so much like home.

End.