Katsuki arranges it so he and his Alpha work together so they can be together all the time - because Katsuki is a clinger - so when Alpha has to stay home due to injury or sickness, Katsuki is not only more irritable than usual, he is a pathetic wet cat about the whole situation.
"Bonded pair do not separate has been separated - Active Dynamite" is a code red in his agency's building.
Anon: Pssssss imma need some more omega Bakugou like now no it make him jealous too because why not
AND
Anon: hi! could you do some omega!bakugou x male alpha!reader? nsfw and sfw pls <3
nesting too pls!! idk why but I love the idea of nesting sjdjsnd, pregnant bakugou fluff would be lovely too <3
AND
Anon: Hi I was wonder if you could do omega Bakugou sfw and nsfw please 🥺
(Hey, everyone!! Bakugou is very popular in my inbox! Okay, let’s write some omega!Bakugou headcanons <3 I have another request for pregnant!Bakugou, so I’ll add that part of the middle request to another post 😊 Also, I only write for a gender neutral reader. I hope you all enjoy~)
Warnings: N-sfw under a cut, suggestive behaviour multiple times not under the cut.
Nesting:
Bakugou is not an omega who is big on nesting. He does nest and he’s very proud of his nest, but he doesn’t feel the urge to nest super often.
He doesn’t keep a permanent, all year-round nest, he’s kind of a clean freak so having to constantly clean all the blankets in his nest would drive his nuts.
He does nest during his heat and late term pregnancy, and also after periods of extreme stress, but not often outside of these times.
But if he knows his alpha likes his nests, he might build them for his alpha when they’re stressed, although he’ll claim he just felt like making it and it shouldn’t go to waste.
It’s not a very convincing lie.
His nest is not in a very popular style, mainly because Bakugou overheats so easily.
It’s a simple double mattress on a very low frame, with a couple of pillows and sheet like blankets that he normally uses as a base rather than a covering.
He has a black and red colour scheme that he thinks is the coolest thing ever, and he definitely has an All Might pillow hidden somewhere at the back that he threatens his alpha to keep a secret, it’s very cute.
He likes his nest to be in an easily defendable position, whether that be inside a large cupboard or wardrobe, or a small room with one door and a small window.
Bakugou also keeps a mini fridge by his nest, as a lot of omegas do, to store water and food, but what he has that a lot of omegas don’t, is a mini freezer too.
He keeps ice packs and ice lollies in there to help when he’s in heat because his temperature tends to get way too high.
Bakugou doesn’t like being vulnerable, so his nest is a sensitive topic for him.
It takes him quite a while to let his alpha into his nest, but he’s quicker to let them chill outside of it, holding his hand and keeping him company. He would probably let them outside his nest after courting for a year and knowing them for at least two years. When he lets them inside depends on a lot of factors, including how well they deal with him from the outside of his nest. It could be anywhere from three months to another year.
Pups:
Bakugou has always wanted some pups, but in a removed and distant kind of way. After all, becoming the No. 1 hero was far more important than any of that ‘family’ nonsense.
He only really considers pups when he’s in a very committed relationship and at a comfortable place in his career. He’s not prepared to take time off at a vulnerable career moment, after all.
Bakugou wants two children, because, while he would never admit it, he always wished he had a sibling when he was a kid, so he wants to give that to his children.
But he’s very conflicted about it.
Firstly, two pregnancy leaves would be a huge blow to his career. Prime hero years and prime ‘having children years’ are the same years, so in a way, he has to decide how to balance these two priorities. He isn’t sure he wants to risk his career with that much leave so close together (heroes can’t be in the field while pregnant at all, so it would be a huge sacrifice.)
Secondly, he’s nervous about how useless he would likely feel while pregnant. He’s a workaholic and being confined to his house and losing control over his quirk would drive him nuts.
So, he doesn’t really know what to do. He doesn’t share any of his concerns with his alpha, but he does take their wishes into account too. If his alpha really wants two children, Bakugou does keep that in mind. But he’s not a push over. If he decides that two maternity leaves are too many, then it’s too many. It’s his body and he won’t let anyone tell him otherwise.
So, with all this in mind, Bakugou is fucking thrilled when he finds out he’s having twins.
Two pups for the price of one pregnancy leave?? Sign him the hell up!
Bakugou has twin boys, both alphas, and Bakugou just cannot believe his luck that all his problems just fixed themselves.
“But I don’t want to go!” came a defiant voice from the back seat of the car. Both you and Bakugou sighed, not keen on restarting the disagreement that had plagued the household for the entire morning. It had taken twice as long as normal this morning to get the twins dressed and in the car because of this very argument.
You could see Bakugou about to open his mouth to tell him that they had to, but you held up a hand to stop him.
“Why don’t you want to go, sweetheart?” you cooed at your oldest son.
“I don’t want you and daddy to leave…” whimpered your youngest son, answering in his brother’s stead.
Bakugou winced and reached a hand into the back and squeezed each of his son’s hands in turn.
“I know.” He said simply. You could feel his guilt, even though you both knew it was the best for all of you that the twins get used to nursery so that both you and Bakugou could go back to focusing on your careers. They would be fine, you tried to convince yourself. Millions of kids do this every year and it works out fine.
The nursery came into view, and you refocused your attention onto finding a parking space in the little car park on the side of the building. You could hear your sons shifting anxiously in the back and it pulled at your heart strings. You pulled into an empty space and turned off the engine. You and Bakugou shared a single look before moving to get your children out of the car with practiced ease.
“No,” your eldest son shouted. “I’m not going to go. I’m staying here!”
You had tried to take him out of the car seat, but he had refused to cooperate. You didn’t want to pull him out in case you hurt him. Bakugou came to stand behind you, your youngest son clutching his neck desperately.
“Let me talk to him,” he spoke softly, handing the younger twin over into your arms.
“Hey,” Bakugou said softly, leaning down to peer inside the car where his eldest son stubbornly sat with his arms crossed. “It’s okay to be scared to go to nursery, you know.”
Your oldest son visibly flinched and avoided looking at Bakugou in the eyes.
“I’m not scared, daddy. I just don’t want to.”
“Uh huh,” Bakugou said, eyebrow raised.
“I’m not!” Your son exploded. When he realised that he’d just shouted at his father, the colour drained from his face and his bottom lip started to quiver. Bakugou wordlessly held out his arms and his eldest son accepted the embrace just in time to burst into heavy tears on Bakugou’s shoulder.
“It’s alright,” Bakugou hushed. “I’m not angry at you.”
In your arms, your youngest son was watching his brother cry and letting out little whimpers into your neck. You rubbed his back soothingly and whispered that everything was going to okay.
Out of the corner of your eye, you realised another parent was staring judgementally at your family. Bakugou clearly also noticed because he bared his teeth as a warning and the parent quickly moved on. You scoffed at the idiot who thought it was a good idea to antagonise an omega who was looking after a distraught pup, let alone when said omega was a top ten hero.
“W-What if they don’t l-like me?” your eldest whimpered out.
“Here,” Bakugou wiped some of the tears away with his thumb. “How about this, you tell me if anyone is mean to you and I’ll sort it out, how does that sound?”
“But…” your son hesitated. “But what will you do?”
Bakugou grinned.
“I’ll make their parents regret doing such a shitty job at parenting.”
You gasped, halfway between scandalised and amused.
“Katsuki!” you reprimanded and smacked his lightly on the shoulder.
It did seem to cheer up your sons, though, who were now giggling at your antics.
“Daddy said a bad word,” your youngest twin giggled to you.
“He did,” you pressed your lips together. “And it was very naughty of him.”
Bakugou rolled his eyes and instead placed the pup in his arms on the floor, taking him by the hand. You did the same and slowly, you both made your way toward the school gate. The mood dropped, but neither of your children tried to resist.
You could see a teacher standing at the gate to escort the new students and you made your way over.
“Remember,” Bakugou said before you reached the gate, stopping you all for a moment. “We’ll be back in this many hours,” he held up three fingers. “Can you guys tell me how many this is?”
“One… two… three…” they both said together.
“That’s right! See? You guys are going to be the smartest ones in there,” Bakugou boasted, ruffling their hair.
“Careful,” you teased. “They’ll turn into you.”
“Are you saying I’m always the smartest person in the room?” Bakugou grinned back.
“No, I’m saying you always think you’re the smartest person in the room.”
“Oi!” he growled, knocking his shoulder with yours. The pups giggled again, seeming to be in higher spirits. You escorted them to the gate at the front of the playground and let the teacher introduce herself.
And with one final goodbye, your pups were off into the nursery and out of sight.
You and Bakugou walked to the car in silence, digesting what had happened and processing that your little ones were now old enough for nursery. You both slipped back into the car and began the drive home.
It was weird to think that your children were neither with you, nor at home waiting for you, but that kind of existential deep dive could wait until later.
Bakugou’s hand settled just a little bit too high on your thigh. For the moment, it was time to appreciate the novelty of an empty house.
Jealously:
I don’t think anyone would be very surprised to find out that Bakugou can get quite jealous on occasion.
In the early days of your relationship, he’s very nervous that his alpha is going to find a ‘better’ omega, an omega who is more traditional, and leave him for them. It takes a lot of bravery for him to leave himself vulnerable to being abandoned, and occasionally the insecurities seep through.
He hates the whiny, simpering omegas that plaster themselves onto the nearest alpha, and it makes him furious to see anyone doing that to you.
He has no subtlety, no brooding angst, he just threatens the other omega(s) away to their face, and then drags you somewhere private to cover you in his scent.
Later in the relationship, things change. He’s extremely confident that his alpha is his. Why would they ever leave him? He’s the best fucking omega ever!
Instead, he gets jealous if he isn’t getting enough attention because you’re spending too much time with someone else.
He doesn’t do this in a possessive way, it’s just that he doesn’t get a whole lot of free time and when his alpha spends that free time with someone else? Another omega? He’s pissed.
He gets surly and passive aggressive about it, and it’s extremely obvious.
The best way to fix it is to just give him lots of attention, he won’t behave like this is you have to leave for something important (he understands duty like the best of them), so it’s very easy to address.
Bakugou idly stirred a pot of miso soup as the radio in the kitchen blasted out whatever awful top 40 song it had picked this morning. He had only put it on to fill the silence really, which was the only thing this awful excuse for music was good for in his opinion.
He was making breakfast for the two of you as a kind of mini celebration. He had two days off in a row, the first time in a couple of months because of his crazy work schedule and he wanted to make sure he spent every moment that he could with his alpha. And so, here he was, getting up early to prepare breakfast for your both.
There was a lull in noise as the radio switched between songs, and in the few moments of silence, Bakugou could hear shuffling coming from the bathroom. He grinned. Perfect timing.
He put down the last plate and waited for you to come out, you should be here any second now.
Fiddling with your shirt one last time you swung open your bedroom door, bag on your shoulder, finally ready to leave. You were interrupted momentarily by a delicious scent in the air. Bakugou must be cooking, so you followed the smell to the kitchen and walked in to say goodbye to him, vaguely sad that you were going to be missing his food, but he was probably only making himself something to bring to work, anyway.
And then you saw the elaborate breakfast spread your heart stopped. Had you forgotten an anniversary? Bakugou looked just as shocked to see you dressed up and ready to leave. However, his shock soon melts into frustration.
“Why are you all dressed up?” he growled, the excitement that had been on his face when you walked in now gone. “You said you weren’t working today.”
“I’m not,” you said quietly, confused as to why he was so upset. “Izuku messaged me while I was getting dressed and invited me for brunch, I was just going to meet him.”
Bakugou’s face screwed up at your words. He went to open his mouth but then stopped. He took a deep breath and closed his eyes. He was doing the breathing exercises that his therapist taught him for when he was angry. What had you done to make him this upset?
The relaxing exercises clearly weren’t working for him because he stood up from the table and stalked out of the room suddenly, shutting himself in your bedroom. You winced as the door slammed shut behind him.
Oh dear… you had made your mate so upset that he had shut himself away in your bedroom. Your stomach twisted itself into a knot. It was time for some damage control (and a quick check of the calendar to makes sure you hadn’t actually forgotten an anniversary or something.)
You shot a quick text to Midoriya, apologising for cancelling and letting him know that something had come up. He sent back a ‘don’t worry!’ message and about six smiling emojis. Well, at least he wasn’t also mad at you.
Fishing out a tray from the cupboard above the sink, you stacked it up with as much food from the table as you could, thankful that it appeared to still be warm, and carried it to your bedroom door.
“Katsuki?” you called out, knocking on the door with your foot. “I’m coming in, is that okay?”
There was silence. Well, silence was better than swearing, so you carefully slid open the door and moved towards the brooding lump on the bed.
“The fuck do you want?” he growled. “I thought you were going out to eat with Deku?”
You froze at his vicious tone. Was he jealous? Well, that was a lot easier to solve than forgetting an anniversary, at least. With a smile, you slid the tray onto the bedside table and climbed on the bed behind you mate, letting out a reassuring scent. You wrapped your arms around him, ignoring how he tensed in your embrace, and whispered into his ear.
“Why would I spend time with Midoriya when I could be spending time with you, hmm?” you whispered, purposefully blowing hot air onto his neck. You revelled in his full body shiver. “The only reason I accepted plans with Midoriya was because I thought you were going to work.” You pressed as close to him as you could and placed a single kiss right behind his ear. Bakugou melted at the affection.
“Come on now,” you continued, a coy smile on your face. “Let’s not let this delicious breakfast go to waste.”
You reached over and scooped a little bit of rice onto your fingers before holding it up to his lips. Bakugou opened his mouth with only a small grumble in complaint, and you made sure to push your fingers a little deeper inside than perhaps absolutely necessary.
“I promise I’ll make this morning’s misunderstanding up to you.”
Miscellaneous:
Bakugou’s scent is fairly sweet but still quite smoky.
When he’s upset/stressed, his scent is like burnt sugar, and when he’s very happy/excited, he smells like almost like a marshmallow roasting on a bonfire.
It’s a very pleasant scent but it does tend to divide people. Some love it, and others hate it. Bakugou doesn’t care what anyone else thinks about his scent (except his alpha, but shh, that’s a secret!)
In his family, his father is an omega and his mother is an alpha and while they are happy together, Bakugou always promised himself that he would never end up in a relationship like that. He didn’t want some alpha bossing him around like his mother bossed around his father.
Bakugou finds meek alphas (and people) annoying, but he doesn’t like super aggressive alphas either. He’s attracted to people who exist in the middle of those extremes.
Bakugou knew he was an omega from birth, and it was something he was very insecure about for a long time. It was a big part of why he turned out the way he did as a child, he was making up for something that he viewed as a weakness by being as aggressive as possible.
His mother wasn’t great at making him feel secure in his secondary gender, assuming he would like certain things and pushing him in certain directions simply because he was an omega.
His father said that he was there if Bakugou had any questions, but he let Bakugou reach out to him instead of reaching out to Bakugou, and Bakugou was too proud to make the first move.
Bakugou ends up deciding that being an omega wasn’t going to stop him becoming the No. 1 hero. He decided that he could overcome being an omega.
It wasn’t until he was an adult that he actually started to accept being an omega was a part of him that he didn’t need to overcome, but that he could instead embrace and that it didn’t make him weak to do so.
When he does become a mainstream hero, he makes sure to always tell the omega children that he meets that they can do whatever they want and still be an omega.
N-sfw under the cut
Bakugou is a switch, mostly.
Oftentimes he switches multiple times in the same session, so his alpha needs to be quite the brat tamer to keep him from getting frustrated and trying to get on top so that he can control the pace.
He has a very high sex drive, and he likes to have a partner who can match him because he way prefers sex to masturbating.
It would be hard to find someone whose chest and nipples are as sensitive as Bakugou’s, and when he’s in heat, he can definitely orgasm just from his chest being stimulated.
Bakugou is also definitely a squirter, something which he was very shocked and embarrassed to find out.
Bakugou generally prefers slightly rougher sex. He gets bored when the pace is too slow and definitely scratches and bites (and is happy to receive the same in return).
When he’s in heat, Bakugou is a bit different.
He’s not a pillow prince by any means, but he is definitely a lot more passive than he is normally.
He’s not super loud, but he definitely swears a lot, even between waves of heat when he gets grumpy that he’s too hot and sticky. That swearing is a lot less sexy though.
Bakugou’s sexual side doesn’t really come out outside of his own home. He doesn’t like flaunting anything in public and can even get uncomfortable talking about sex with his friends, especially when they tease him with personal questions. He’s definitely a private person when it comes to sex.
Although that is not to say he isn’t confident in the expression of his own sexuality, much to opposite is true. He is definitely the kind of person to order some new toy or outfit on the internet every month to surprise his alpha.
Summary: So, Katsuki thought maybe he was ready to broach a subject the two of them had never discussed before. Not even in passing. "Izu," he said, head pillowed on his arms on the edge of the tub while he waited for his alpha to finish rinsing off and join him.
"Yes, love?" Izuku replied absentmindedly, hands still shoved root deep into his mass of curls. Even wet and brushing his waist, his hair was still thick with a stray curl poking out here and there in rebellion against the water.
Katsuki's omega purred contentedly in his chest at the pet name. He let the sound out, just a quiet rumble from his nostrils, barely loud enough to hear. "Have you ever thought of having pups?"
.....
Or where Katsuki and Izuku discuss having kids, and Izuku lets on about a fear he has.
Pairing: Bakudeku
Rating: T
Author’s Note: It’s a Christmas fic, y’all. Pure and simple fluff. Enjoy!
Katsuki and Izuku had been together for the better part of a rather domestically happy decade. Yeah, they had their bad days just like any other couple, but they were good more often than not. Christmas Eve found them getting ready to wrap up another happy year together. This would be their first holiday season together without being on call for some time because even though the country pretty much shut down for the holiday, villainy never ceased. So, heroes took turns being on call during the holidays. This year they weren't even on the list as backups. They had from the 24th of December all the way to the 2nd of January all to themselves.
So, Katsuki thought maybe he was ready to broach a subject the two of them had never discussed before. Not even in passing. "Izu," he said, head pillowed on his arms on the edge of the tub while he waited for his alpha to finish rinsing off and join him.
"Yes, love?" Izuku replied absentmindedly, hands still shoved root deep into his mass of curls. Even wet and brushing his waist, his hair was still thick with a stray curl poking out here and there in rebellion against the water.
Katsuki's omega purred contentedly in his chest at the pet name. He let the sound out, just a quiet rumble from his nostrils, barely loud enough to hear. "Have you ever thought of having pups?" Whether it was an outcome of his stupid omega brain or a conclusion he'd come to on his own, Katsuki had wanted children with Izuku since they'd gotten together in their first year as pro-heroes. Not wanting to push, he'd never mentioned the topic and figured Izuku would eventually bring it up. They'd been unmarried, sharing a teeny tiny apartment with four other people, just starting out and living paycheck to paycheck. It had been a bad time, so he'd let it drift to the back of his mind, and waited.
Things were different now though, and Izuku still hadn't brought it up. The idea. The possibility. The, Katsuki was hesitant to say, eventuality.
Izuku stalled for the space of a moment, but didn't raise his head to look at Katsuki. It was harder to tell with the heavy moist air of the room, but a sour note slashed straight through Izuku's normally mint and rainstorm scent. He could hear as Izuku swallowed and continued rinsing conditioner from his hair. "Uh, no, not really. Why do you ask?" That sour note flared again.
A lie if Katsuki had ever heard one from Izuku. Taking the higher road, he didn't call him on it.
Humming, he reached out a hand to wrap a strand of Izuku's hair around his fingers. "Just been thinking that we're in a good place for it. We're at the top of the hero charts, have a steady income. We're not starving sidekicks anymore. We've been married for three years now, and mated longer. I think we're ready."
Finishing, Izuku wound his hair into a knot on the top of his head that Katsuki was going to have to untangle for him later, and waited for Katsuki to adjust so he could climb in between his legs. Izuku leaned back against his chest. Catching one of his hands, he dugs his thumbs into the sensitive flesh of his palm, massaging gently.
"Izu?" Katsuki said against the top of his head when he didn't answer. He couldn't see Izuku's face, but he could feel the tension all along his back.
"That was a lie."
"I know."
"It's just that..." Trailing off, Izuku released a frustrated little huff.
"Do you not want to have kids?" Katsuki's omega whined pitifully in his chest, jumping to conclusions as it always did. He shoved its head down, refusing to take Izuku's silence as confirmation.
Izuku didn't speak until he moved to Katsuki's opposite hand. "It's not that, it's just that... I'm scared."
Katsuki pressed a kiss to the back of Izuku's neck before moving to pepper his shoulders. "Why are you scared?"
Breath hitching, Izuku tilted his head in submission and Katsuki's omega purred at the display. "It's just that... I didn't grow up with my dad around. I haven't seen him since I was four. I haven't talked to him since I was six! The only reason we know he isn't dead is the flowers he sends every year on my parents' anniversary and my birthday cards!"
Katsuki ran his free hand over Izuku's belly, pulling his flush against his body. "I remember the day he left. It was the first day we met and I shared my ice cream with you because you looked so pitiful. Even your All Might balloon looked depressed, partially deflated and almost hitting the floor. It was so ugly."
Izuku snorted out a small laugh which was the whole reason Katsuki had mentioned it anyway. "I just... how am I supposed to know how to be a dad when I never had one around? What if I'm a terrible dad? I don't... want to be a bad dad. I don't want to be like mine was... is."
"Izuku, baby, listen to me," Katsuki said, moving his hand so that he could slot their fingers together, squeezing tightly, "You're not going to be a bad father, you want to know how I know? Because you had a mother who raised you right. You're great with kids of all ages. And you're you. Nobody is perfect, that's not what I'm saying. Everyone makes mistakes. That's why there's two of us. We're a team."
Izuku struggled against his hold, trying to turn and face him, but Katsuki held fast. He snarled, frustrated. "You don't know that though! You can't know that!"
"I do because you're my mate! I wouldn't have chosen some two-bit alpha who was going to be a shit dad," Katsuki told him truthfully, and sighed when Izuku only continued to struggle. He let his alpha turn to face him, but caught his face in his hands before he could talk. "Izuku, just fucking be there and you'll already be doing better."
Tears filled Izuku's eyes and spilled over just as quickly. Shakily, he asked, "You really think I'd be a good father?"
"Yes."
"You really want to have kids with me?"
Katsuki pressed a kiss to his nose and then his forehead. "Have since we first started dating."
Green eyes grew impossibly wide. "Really?"
"Really really."
Izuku beamed, pressing in for a languid kiss that Katsuki drank up. When they pulled apart, Izuku was still smiling.
"Get back in here, nerd," Katsuki grumbled, pushing on Izuku's shoulder to get him to turn back around. "Tomorrow's Christmas, and I want to get to bed soon."
.....
They woke with the rising of the sun like the did most mornings, but Christmas was a particularly special sunrise for them. It had been the day they'd started dating, tipsy and swaying beneath mistletoe at Yaoyorozu's home. Bundled tight in heavy coats and scarves, they climbed to the top of the roof with cups of steaming coffee to cuddle together as the first rays of sun crested over the horizon. Around them, the world's sounds were silenced with the thick blanket of fresh snow.
Anxiety was a thick cord around Katsuki's throat making it difficult to enjoy that silence, and it was all he could do not to let the anxiety leak into his scent. He tugged at his scarf as he cleared his throat. Izuku glanced over at him with sleepy green eyes and that dopey enamored smiled Katsuki loved so much. "Listen, I know we're not doing gifts till later, but I want you to open this one now." He extracted a thin black box from the pocket of his coat, holding it out to Izuku with a trembling hand.
Sitting up straight, Izuku stared down at the box in confusion. When he traded his coffee mug for it, he frowned and then grinned again. "What's in here, Kacchan? It's so light."
Rolling his eyes, Katsuki huffed, "Just open it, alright."
There wasn't much too it, just a lidded box he'd taped shut and slapped a bow on the top of, but he'd kept it tucked away just for this moment.
Izuku was careful as the sky began to brighten. He peeled each piece of tape off to ball up and tuck away in his pocket. When he lifted the lid and handed it to Katsuki, he just stared down in confusion at the contents.
The anxiety reared up again, hot in Katsuki's stomach, musky and so thick in his scent that even he could smell it. His omega whined just as anxiously, a high whistling trill only he could hear. They waited.
Izuku picked up the teeny tiny pair of socks, one patterned with his hero colors and the other with Katsuki's. He chuckled, and Katsuki's throat clenched. Izuku hadn't turned to look at him yet which gave him time to hide the sheer panic that roared through him. "These are so cute, Kacchan," he cooed, "but it's kind of a weird gag gift. These are way too small for me. They're small enough for a-" He cut off abruptly, eyes having dropped back to see what else was in the box.
Tears bloomed in his eyes as he picked up the picture of an ultrasound, hands trembling as he stared. He looked to Katsuki, smile watery. "Is this- Are you- Kacchan?"
Katsuki nodded, mouth still set in an uncertain line as he looked at Izuku. "I'm pregnant. I found out a few weeks ago, but I wanted it to be a surprise. I didn't know how you would react, and-"
With a happy cry, Izuku launched himself at Katsuki, and the careful grip he'd had on their cups disappeared in favor of making sure they didn't go plummeting to their deaths. Their cups clattered down the roof and dropped into the snow with soft ' thumps '.
Izuku pressed kiss after kiss across Katsuki's face until they were both laughing with the thrill of it. "You're pregnant! I'm going to be a dad! I-I-I-I-" He was sobbing, full-bodied and snotty and grinning. "Kacchan, I can't wait!"
"There's going to be nothing to wait for if you knock us off the roof and kill us, shitty nerd!" But he was laughing and holding Izuku back just as tightly as they rocked to and fro. Their scents tangled and mixed as harmoniously as they always had.
Pulling back and kissing Katsuki again, he said, "Let's name her Katsumi!"
"You don't even know if they're going to be a girl!"
"Taiyo if they're a boy!" Izuku replied immediately, smile blinding as the orange sunrise illuminated his face, "But I just know. It's an alpha thing. They're going to be a girl."
Rolling his eyes, Katsuki just hugged Izuku tightly against his chest, pressing a kiss to his alpha's forehead.
"Best Christmas present ever," Izuku whispered.
Of course just like Izuku predicted, when their baby was delivered, they had a little girl.
I know nothing about A/B/O Dynamics but Katsuki?? following Alpha darling and Todoroki?? Interesting 😳 Question about the fic though; is Katsuki also an Omega?
He’s an Omega, without a doubt. Don’t get your hopes up, though. If anything, it only makes him more cocky than he normally is.
I picture secondary-genders being kind of rare, with the majority of the population being Betas or some equilibrate form of neutrality. Omegas and Alphas are genetic outliers, remnants from a more primal age, so it goes without saying that Katsuki is more than happy to have any strong alignment at all. Of course, he doesn’t publicize it, swallowing down suppressants like candy and scheduling his heats like appointments, locking himself up to keep from doing anything stupid. He doesn’t flaunt it, like Shoto, and he’s not going to take his urges out on someone, like Deku (see his allignment in this post). It’s something he keeps to himself, whether or not he’s proud of it.
Of course, his leash grows a little more taunt when you come into the picture. Alpha or Omega or Beta, he doesn’t care, your scent is enough to drive him crazy the moment he catches it. He’s stealing your clothes before he realizes it’s wrong, trailing after you like a lost puppy and finding any excuse he can to touch you and finally giving in to his heats, even if he still going to do so alone. This is a matter of pride for Katsuki, too, he can’t let himself be so vulnerable around another person, regardless of who it is. Even if he does try a few risky things when he’s particularly desperate.
But, that only applies when there’s not another Omega involved, when he’s not being challenged. I can’t imagine how much of an insult it is, to be bested by someone in a game they don’t even know they’re playing. Trust me, though, Katsuki’s going to do his best to prove that he’s the only bitch you’ll ever need, whether or not you seem convinced.