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Izuku giggled at the tender kisses being pressed into his skin. Humming happily at the loving caresses of fingers gliding over his skin. 

His omegan body was being worshipped by a loving alpha. 

Hot breath fawning over his skin, light bites in sensitive places, Izuku’s arousal given off by the amount of slick that seeped out, ready and waiting to be taken and filled. 

Loving words whispered in his ears, “Beautiful Omega.” 

Izuku purrs at the praise spoken into his skin. 

“My Omega.” 

Izuku sighs contentedly, what had he done to deserve such an alpha. 

“HEY! YOU SHITTY OMEGA, WAKE THE FUCK UP!” 

Izuku snaps out of bed and a pillow hits his head. 

“GET UP AND SHOWER, I CAN’T DEAL WITH YOUR SCENT STINKIN’ UP THE APARTMENT. WHAT WERE YOU DOING? HAVING A SEX DREAM? CHRIST! IT REEKS IN HERE!”

Izuku grumbled as he fell back into bed, yeah, that was a nice dream. And this? This was his reality. 

“Sorry Kacchan, you know how I get during pre-heat!” He yells out an apology.

“Take a shower Deku!!” Katsuki yells out from somewhere in the apartment. 

Izuku grumbled as he reluctantly got out of bed, dragging his feet to the bathroom. Showering and scrubs himself thoroughly. He dries up, rubbing on his scent blocking deodorant and exits the bathroom only to be assaulted with a strong Alpha scent, he turns to face the living room where Katsuki had previously yelled. 

“Kacchan!! You complain about my scent being overwhelming! But yours is so overbearing !” 

Izuku complains, but really, nothing ever beats Katsuki’s scent. It’s like coming home after a long day in the cold. It’s warming and inviting, which is funny because he’s got a prickly personality.

“Oi,” Katsuki speaks from behind him, causing Izuku to jump, “what did you say?”

Izuku nervously laughs putting his hands up in front of him, “..It’s...it’s just strong okay!? Go shower! It’s all yours!”

Izuku heads back to his room pulling on some clothes and heads to the kitchen where breakfast and a cup of coffee is waiting for him at the table. Izuku sat down with a smile, it was a routine they had developed as soon as Katsuki had asked Izuku to move-in. Katsuki immediately noticed that Izuku was shit at taking care of himself, and quickly adapted to making food for two to correct Izuku’s poor habits. 

He took a bite out of the toast and eggs and internally moaned. Katsuki’s cooking was the best, as usual. Izuku was so lucky to have Katsuki look after him. But, sometimes Izuku worried about when those days would stop. The day that Katsuki admitted to finding a mate was a day Izuku dreaded. Izuku shook his head, he had to accept that; there was no way Katsuki could see Izuku the same way. By the time he was done eating, Katsuki came out dressed for the day as Izuku put his dishes away. 

“Thank you for the food Kacchan! Are you ready to go?” 

“God do you always have to be a ball of sunshine,” Katsuki grouses as he puts on a pair of sunglasses, “You’re too high energy!” 

Izuku laughs as he follows after Katsuki to the front door, slipping his red sneakers on. Katsuki hands him his hoodie off the coat rack, “Kacchan, how can you always be such a grump yet do nice things?” 

Katsuki shrugs, and walks out the front door, “Hurry up or I’m leaving your ass behind.” 

The two commute together by train to the hero agency they both work at. As they file into the car, Izuku looks up and notices the pink and red ads littering the space indicating that the season of love is upon them.

Izuku, like most omegas, lived for Valentine’s Day; the day had become known as the peak mating season for singles. The days leading up to it were similar to that of a mating ritual in which alphas would bring elaborate gifts to their intended. Omega’s often received a good amount of gifts, with plenty of alpha’s to choose from. However, Izuku only got a fair amount of gifts and a few alphas. He wasn’t disappointed when things fell apart or didn’t go the way he’d expected; he figured these alpha’s were intimidated by Izuku being Japan’s top pro hero. In the end, he often spent Valentine’s Day at home, on the couch watching sappy movies and eating ice cream with Katsuki. 

But this year, this year, he hoped it would be different. This year his heat was prime to hit as the holiday came around, and honestly, he’d love to be able to spend it with an alpha. Not that Izuku was lacking in the sex department, it’s just, in the past he normally spent his heats alone or with a beta and some accessories to help him. However, the last few years, he had spent it alone and it didn’t help that he’d been having this recurring dream of this wonderfully perfect alpha that worshipped him. He hoped to find an alpha like that, his mind showed him a vision of Katsuki which he immediately shoved down, Katsuki would never see Izuku as a mate.

Katsuki shoves him with his shoulder as he makes his way to the opening doors, and he shoots Izuku a glare over his shoulder.

“Oh, sorry Kacchan!” Izuku knew that was Katsuki’s way of saying ‘ stop daydreaming or you’ll miss the stop you damn Deku!’

Izuku quickly follows Katsuki out onto the platform and up the stairs to the street that leads to their agency. Silently they dress in their hero outfits and are headed to the briefing room. They were notified the day before that a new addition would be added to their ranks. 

“I wonder who it is!” Izuku says excitedly. 

“Don’t know, don’t care. They better just pull their own weight,” the blond grumps. 

They walk into the room with Izuku smiling and greeting their co-workers a whispered ‘good morning’ as they make their way to sit in the first row. Katsuki doesn’t spare anyone a glance, but that was to be expected; he wasn’t much of a morning person, or—a people person for that matter. Izuku more than made up for his best friend. 

Soon the office manager comes in and briefs them on the day’s objectives before introducing the new employee. Izuku’s fidgeting in his seat with excitement and gasps when the new person walks in. 

“Shindou-kun!” Izuku exclaims while Katsuki slouches further into his seat and grumbles. There’s a mix of collective groans and whoops at the sight of Yo, but the latter doesn’t seem to mind, just wears his confident smirk and goes on to introduce himself.

“Hey yo! I’m Shindo Yo, also known as the hero ‘Grand’. I look forward to meeting and working with you all. I’m in your care,” Yo bows, but quickly looks up with a tilt of the head and a wink, “Nice to see you again Izu-chan.” 

Izuku flushes pink at the nickname, and a low growl next to him goes unheard as he smiles back at Yo, “Welcome to the agency! I look forward to working with you as well!” 

After the meeting is dismissed, Izuku goes to his desk to find a few simple gifts laid across his table. The typical Valentine’s chocolates, and cards. Hardly anything to be used as fuel to compete for the omega. He reads the notes, seeing they came from fellow omega co-workers that just wanted to give the number one hero a token of appreciation. Izuku sighs, he’s really hoping for something substantial, something soft, like a blanket, to add to his nest. 

The morning goes by in a flash due to patrols, and in the afternoon he’s tasked to take Yo around for a meet and greet in the office. Typically, Human Resources does this, but people are more prone to be more engaging when Izuku is the one to do it; it looks more social than it is task-based. Izuku took to this new role gladly, and his co-workers (who hardly got to interact with him to begin with) ran with the opportunity. 

“So, what brings you here Shindou-kun?” Izuku asks as they move between floors on their tour. 

“I needed a change of scenery, wanted to be in the big city y’know. Can only do so much in small towns.”

“Mmm, that’s understandable.”

“I could do so much more with my quirk you know,” Yo smirks in Izuku’s direction, Izuku blushes at the innuendo.

“Ah, I’m sure! Though, major cities wouldn’t benefit much from a destructive quirk like that…”

“Ow, you wound me Izu-chan, it can be isolated vibrations you know, ranging from light to destructive tremors, I’ve got excellent quirk control.” 

Izuku rubs the back of his neck laughing nervously, “That’s great improvement! I guess I can see how that would come in handy in some situations; the need to loosen up compacted rubble when it’s time to clean-up.” 

Yo shrugs, “Yeah, but let’s be honest, I just wanted to be in the city with the rest of the top heroes.” 

“That’s also admirable though! Don’t sell yourself short; it takes a lot of courage to put yourself out there and apply to the big city where the competition is fierce!”

Yo stops in his steps, causing Izuku to pause when he smiles genuinely at him, “You really do see the good in everyone don’tcha.” 

“I, ah—”

“Oi, Deku, are you done touring that extra around?” Their moment is interrupted by a disruptive blond. 

“Oh-oh, Kacchan! I was about to finish touring him on our floor and then I’ll be done for the day.”

“Hurry up, I’m heading to the locker rooms to change out.”

“Yes sir!” Izuku salutes him and Katsuki rolls his eyes and shoots a glare at Yo before he stomps off, “Ah, sorry about that Kacchan likes to leave on time! Let’s finish up the tour!” 

After introducing Yo to the rest of the staff they walk back to the locker rooms to change back into their civilian clothes. As they’re about to enter, Yo decides to ask Izuku a question, “Hey, I really appreciate the warm welcome. I was wondering if you’d like to get a cup of coffee or something? As thanks?” 

A locker slams interrupting them, and out of the locker room comes Katsuki, shoving his way through them.

“Ah, I can’t tonight! I gotta get home with Kacchan! But maybe tomorrow or something we can!” 

“Sounds great. Lookin’ forward to it Izu-chan~.” Yo teases with a sing song voice. 

Izuku books it to his locker and changes out quickly, yells out a good night to Yo, and runs to meet Katsuki in the lobby. The blond kicks off the wall he’s leaning at the sound of Izuku’s squeaky sneakers running down the hall. 

“Took you long enough nerd.” 

“Sorry, Shindou-kun likes to talk.” 

Katsuki gives a non-committal grunt before changing subjects, “What do ya want for dinner tonight?” 

“Spicy curry!” 

“Wh—you’re not asking for Katsudon tonight?” 

“Nope! I want your favorite tonight! Your curry is always the best.” 

“You say that about my cooking all the time!”

“Doesn’t make it less true! C’mon Kacchan!”

“Alright, but I’m making it extra spicy,” he grins evilly.

“I’m gonna have to get some milk then!”

The two make it to the market, Katsuki keeps Izuku in his orbit by asking him questions, having him look at the ingredients, to see if it’s to his liking. It makes Izuku laugh, “Kacchan, you know what I like and don’t like, why do you keep asking me these things?” 

“I’m not gonna make shit you won’t eat! I hate being wasteful!” 

“But you know , I eat everything you cook!” 

Katsuki sighs, “Whatever nerd.” 

Izuku makes sure to pick up some milk and the two make their way home. Izuku showers while Katsuki cooks, popping into the kitchen to check-in on dinner when he’s done. He peeks over Katsuki and propping his chin on his shoulder, “Mmm! Smells good!!”

“Be useful and set the table.” Katsuki turns to look at him, their faces millimeters apart. 

“I know! I just wanted to compliment you!” 

Izuku turns back to set the table; Katsuki instructs him to make a small salad and some side dishes. Just as Izuku finishes setting things on the table, Katsuki’s done with the curry and rice. The two settle down at dinner as Katsuki serves their plates. Izuku clapping his hands together and saying, “Thank you for the meal!” 

The two dig in and at the end do the dishes together. They’re a little playful at the sink when Katsuki hip checks him or elbows him with a smirk. Izuku just smiles up at Katsuki. It’s little things like this that make Izuku happy that he and Katsuki were able to move past their rocky past. 

After dinner, Izuku makes their usual evening tea as they settle down on the couch for the evening watching late night talk shows, or a movie before one of them decides to call it a night. Katsuki is the first to cave tonight, telling Izuku not to stay up too late as he ambles off into his room for the night. Izuku waves him off, even though he’s slightly sad they didn’t get to spend more time together like he would’ve liked. And, as if Katsuki knew he was upset, he came back scenting him lightly, knowing how much his scent helped him relax before he disappeared again. 

The next morning they move like clockwork about their apartment leaving together once more. They split into their morning patrols and Izuku finds a few more gifts on his table once he comes back for lunch time. He’s gotten a few larger gifts sitting on his table; he feels giddy at the idea from whom they came from. Bigger boxes often meant alphas.

Three boxes sat on his box, moderately sized. He lifted each of them, shaking them gently, they all carried a bit of heft in them. He decided he was going to open them right then and there; opting for the most foreign of the three as it had a scent he wasn’t familiar with attached to it. 

He opened the note card that read:

Deku, a few additions for your growing collection. Happy Valentine’s Day!
                     - Daiki 

Izuku smiled softly, Daiki, also known as Pro Hero Green Giant, was a shy alpha with a deep woodsy scent that was very calming, just like his personality. He was gentle and sweet despite his massive size. He was not lacking in the attractiveness department whatsoever. He opened the lid and saw two boxed figures nestled among tissue paper. It was a limited edition All Might and Nighteye figure set from All Might’s Silver Age collection. 

Izuku pouted, “Aww, that’s sweet, but I have these already,” he whispers the last part under his breath. 

He closes the lid, and sets a reminder to send the alpha a thank you note, it was a very sweet gesture for someone that didn’t realize how much of a nerd Izuku was about All Might’s figure line. 

He picks up the second box, it’s a more familiar scent, a spring scent mixed with the salt of a sea breeze. It was refreshing just like the owner, the newest face to join their agency, and it made Izuku a little excited.

He picked up the notecard from Yo that wrote:

Izu-chan,
          Thanks for showing me around the agency. So, here’s some sweets for the resident sweetheart.
                     -Yo

Izuku smiled brightly at the comment. He knew he was nice, but being a resident sweetheart? That really made Izuku feel good about himself. 

“Oi, reel in your pheromones Deku, you’re affecting people in the office!”

Izuku jumps, “Wah-cchan! Sorry! I um, wow. This is embarrassing; was it really that bad?”

“Dunno, why don’t you look around?” 

Izuku scans over the low height walls of the office, seeing several people shaking their heads out of their stupor and eyelids fluttering as Izuku tries to dampen his scent. 

“This is embarrassing oh my god.”

“What’s got you flustered?” 

“Oh!” Izuku looks back at the package, “Shindou-kun’s left me a gift!” 

Katsuki’s brows furrow in irritation as Izuku lifts the lid, “Ah! He got me a ton of sweets! Look there’s cakes and candies!” He shifts around the shredded pink paper, and pulls out a glass jar, “Ah! Kacchan! He got me salted caramels!” Izuku opens the lid and takes a big whiff, “Mmm, they smell so good, they smell just like you!” 

Izuku places everything back in its place and closes it and before he can pick up the third, Katsuki thrusts a cutely fabric wrapped bento box into his chest.

“You forgot your lunch again,” Katsuki grumbles.

“Oops, sorry Kacchan! Thank you again. You do so much for me, what would I do without you?” 

“Die.”

“Well, I mean--” Izuku pauses, realizing he has no good rebuttal, “Thank you Kacchan.” 

“Make sure you eat. I didn’t bust my ass making that for you to waste it,” he turns to leave. 

Izuku laughs at Katsuki and looks back at his bento. It’s wrapped in a Green furoshiki cloth with a pattern of white bunnies and carrots. It makes Izuku smile fondly at the gesture; his fingers run along the smooth folds thinking ‘ I’m so lucky to have Kacchan. He’d be a great Alpha to his mate. I Wish...’ he cuts the thought off, there’s no way Katsuki would feel the same way. 

Setting the cute bento down, he moved to the third box on his table. Again, he knew this scent; it was the most familiar of the three. Warm notes of caramel filled his nostrils with a hint of smoke and spice. There’s also a notecard attached to it, which he opens reading: 

Deku,
          Figured you might want some new things to add to your nest.
                     -Kacchan

He smiled fondly as he pulled the edge of the orange ribbon, unraveling to expose the box top. Pulling the cover off Izuku giddily pulls out the top item, nuzzling it against his cheek with a soft purr. It’s a soft blanket drenched in Katsuki’s scent. Even before the two had moved in together, Izuku always had one or two items from Katuski to add to his nest, offered to him by the blond. When they moved in together, Izuku had taken to stealing Katsuki’s favorite shirts, which annoyed him; therefore prompting him to supply the omega with new items during his pre-heat. 

Izuku looked back to the box, and found a few other items that had another note attached: 

          For when you have to walk around the house in heat. 

Izuku set aside the blanket and pulled out a matching robe and a pair of shorts. It was made of a luxurious green silk that felt heavenly and cool to the touch. Izuku always complained he had nothing comfortable to wear when he had to leave his room to use the bathroom; it was nice knowing that Katsuki kept these things in mind. What a thoughtful ma— roommate . 

As he put things away carefully into the box, he heard footsteps approach him with the scent of the sea attached to it. 

“Heyyo Izu-chan~!” 

“Hey Shindou-kun! Thank you for the box of sweets! It was really thoughtful of you! How’d you know my favorites were salted caramels?” 

“Hmm? I didn’t, I kinda just grabbed what I thought you’d like.”

“Oh, still! Thanks!”

“Say, you got time to have lunch together?” 

“Sure!” Izuku exclaimed as he picked up his bento.

“Oh, you brought lunch.” Yo shrugs, “let’s head to the cafeteria then, I can pick something up and we can eat together.” 

They head down to the cafeteria, and Izuku finds a spot for them to sit while Yo gets his food. Izuku gingerly unwraps the fabric with care, and sees three bento’s stacked with chopsticks neatly atop it. He places the chopsticks aligned at the top, and opens the three boxes side by side. Izuku wiggles in his seat at how delicious everything looks. 

Yo sets his tray down across from Izuku and takes a seat.

“Wow, that looks delicious Izu-chan. You really know how to make a complete meal. That’s impressive!” 

“Doesn’t it look amazing?! And thanks, you give me too much credit! I didn’t make this.” 

“Oh?” Yo tilts his head questioningly.

“Nope! Kacchan made it for me. Kacchan usually packs my bento’s, ‘cuz he says I’m useless on my own. And, especially with my pre-heat he likes to make sure I get extra protein and fruits. Though, I’m not sure why he makes me eat so much pineapple.” 

“Uh huh, I see,” Yo says.

“Um, you okay?” Izuku asks at the slightly soured scent. 

“Yeah, I was just under the impression that you were single.” 

“Huh? But, I am?” Izuku looks at him confused. 

“Right, sure you are,” Yo says with a laugh, “Anyways, let’s dig in before our food gets cold!” 

The alpha goes back to his cheerful demeanor and Izuku shrugs it off and goes back. Izuku can’t help the small noises of joy he makes when he starts to eat, the food Katsuki made was just so good! As he savors the meal he manages to sneak a peek at Yo whose mouth is hanging agape and his eyes slightly dilated. 

“Uh...sorry,” Izuku apologizes sheepishly, “I struggle to keep my scent under wraps when I’m happy.” 

Yo coughs and shakes his head, “Uh, yeah. It also doesn’t help your face was looking...erotic.”  

Izuku blushes deeply at that, bowing his head, “I’m so sorry Shindou-kun!!!” 

“It’s um, it’s okay, but well, would you look at that, our lunch break is over!” 

Yo promptly gets up saying a quick bye to Izuku and busses his tray. Izuku’s shoulders sag as he pouts; picking at his food as he leans into a hand and sighs, “Good going Izuku, you ran off another Alpha.” 

Izuku’s a little dejected after that, but Yo comes back around later apologizing for having run off like that. That lifts Izuku’s spirits a little bit as he changes out of his hero outfit. Katsuki helps Izuku carry his boxes of gifts home, and they settle into their evening routine once more. 

But, along with Izuku’s tea he brings out the cakes that Yo had gifted him on a tray to serve him and Katsuki on the couch. 

Katsuki’s nose scrunches, “What the hell’s that smell?” 

“It’s Shindou-kun’s scent! It’s similar to a seabreeze!” 

“The asshole would smell salty,” Katsuki grumbles. 

“What was that?” 

“Nothing. So what did you get today?” 

Izuku goes on to tell him what Daiki had given him as they ate Yo’s treats. 

“Also, Kacchan! I really loved what you gave me! The blanket was perfect and the shorts and robe!? Ah, what a nice touch! I can’t wait to use them!” 

“It was nothing,” Katsuki murmurs as he sips his tea. 

Izuku is the first to turn into bed, telling Katsuki he needs to start fixing his nest in preparation for his heat. Izuku opens up Katsuki’s gift again, carefully pulling out the blanket and outfit. He hangs the clothes he received on a hanger by the door for easy access, and pulls the soft blanket out and tucks it into his nest. He puts the two figures he was given onto a display shelf and makes his way to the bathroom. 

On his way back he bids Katsuki good night who scents him lightly before he turns. Snuggled in the sweet caramel scent he drifts off into sleep, dreaming of his perfect alpha. 

The next morning, Izuku’s body temperature feels hotter than usual, but he doesn’t think anything of it since it’s typical biological changes leading into his heat. Katsuki makes a comment about his scent being sweeter than normal too, but again that’s nothing new. Yet, Katsuki decides to help Izuku out by scenting him with his Alpha scent. 

At work, Izuku is assigned to do patrols with Yo which makes Izuku a little excited. Katsuki shoots Yo a glare as they pass by one another to their respective patrol zones, and Yo can only smirk in response. 

Izuku fans himself, “Boy, it’s really warm out for February huh,” he states. 

“Hmm, seems about right to me. Are you feeling okay Deku?”

“Eh, nothing I can’t handle!” he continues to fans himself more vigorously and pulling at his costume.

“That’s a pretty bracelet. I don’t recall seeing you wearing that yesterday,” Yo muses, when it slips down from under his glove.   

Izuku sticks out his arm, the silver chain sparkling in the morning sun, clinking slightly with each movement, “Oh this? Yeah, it’s really pretty right? Kacchan got it for me for my birthday two years ago!” 

“You said you were single,” Yo repeats. 

“I am!” Izuku retorts with a furrowed brow, wow, it is getting really hot , he thinks. 

“No, you are not, Izu-chan. You have an alpha,” Yo says incredulously.

“I don’t have an alpha. I’m pretty sure I’d know.”

“Izu-chan, you can’t be that dense!”

Izuku’s heart rate picks up and his vision swims, ‘ What is going on?’ “What are you talking about?” 

“Bakugou. Bakugou is your alpha,” Yo deadpans. 

“No, that can’t be right. Kacchan is Kacchan,” Izuku stumbles feeling light headed as he takes in Yo’s words.

“Deku, think about it. Bakugou IS your alpha.” Yo rolls his eyes at him.

“My…alpha?” Izuku swoons as he thinks about Katsuki being his alpha .

“Hey, Deku, I think you need to—oh fuck,” Yo rushes to catch Izuku before he hits the ground. Yo instantaneously pinches his nose with his free hand, “You’re in heat.”

“Alpha…,” Izuku murmurs before his vision goes black. 

---

Katsuki was a little worried about Izuku’s state before work. His scent was strong, and his face was flushed. He knew his heat was bound to hit this weekend, but he could only infer so much. Izuku, usually worked on his nesting a couple a days before the heat actually hit too. He also knew how difficult Izuku’s heats were, which is why he sent him off this morning with his scent; Izuku seemed to handle his heats better when Katsuki was around. But, he figured, duh, they were in courtship and almost mates, of course Izuku fared better with him around. 

The only thing that Katsuki was missing from his courtship was an invitation to Izuku’s nest for his heat. He’d only provided items for the nest, but Izuku had never shown it to him or invited him. He figured Izuku wasn’t ready to take the next step with him since they had moved in together. 

Katsuki’s phone rang, he picked it up, the screen flashing Izuku’s picture and name “Deku” on the caller ID. He picked it up immediately.

“Oi Deku wha—”

“It’s not Izuku,” Yo answers. 

Katsuki visibly sneers, “Why are you using Deku’s phone?” 

“Look man, I don’t want any trouble. But your mate , who doesn’t know he’s your mate . Just passed out in the middle of patrols. I think he’s in heat.”

Katsuki’s nostrils flare, “Where are you?” 

“I’m sending our location. Listen Bakugou, you gotta get here fast, his scent is...strong and I’m really trying here.” 

He growls slightly into the receiver.

“Hey asshole. You’re lucky I even called you. A prone omega is up for grabs. You’re lucky I’m above that. Now get your ass over here.”  

“Okay, alright. I’ll be right there.” 

Katsuki puts his phone away after he receives their location and uses his quirk to blast up the closest building and blasts from building to building until he gets to where Yo and Izuku are. He sees his mate slumped against Yo’s chest, and that the other alpha has his nose pinched to keep from smelling Izuku, okay so he gets a few points, but not many. 

That still isn’t enough to placate Katsuki’s alpha who wants to rip Yo off of him. Smelling Katsuki’s scent the other Alpha bares his neck in submission.

“Bro, I’m not gonna take him. But YOU need to, his scent is…”

“I got him,” Katsuki puts his arms under Izuku to carry him bridal style, “You can go now.” 

Yo gets up, straightening up his costume, “YOU need to talk to him. I had a feeling he was spoken for, but he insisted he was single.”

Katsuki’s eyes bug out a little as he looks at Yo and back at Izuku, “Fuck.” 

“Yeah, fuck.” Yo turns to walk away.

“Hey,” calls out Katsuki. The man turns back to face him, “Thanks, I guess.” 

“Yeah,  yeah. Just take care of him,” Yo waves him off and walks away. 

Katsuki sighs and looks at Izuku, “You idiot.” 

He makes a call to the agency saying that he was taking Izuku home, after having collapsed due to overheating. Izuku really should’ve taken some time off, but per usual, Izuku didn’t notice the signs. Seriously, how dense could this nerd be? 

When they get home, he grabs Izuku’s favorite pair of pajamas and changes him, wraps him in a fluffy blanket and sets him on the couch. 

In a few hours, Izuku starts to stir and Katsuki is by his side instantly.

“Oi, drink some water.” 

“Ngg, Kacchan? What happened?” Izuku reaches for the glass of water being offered to him.

“You overheated. That Shindou bastard called me to get you.”

“Oh,” Izuku says, “OH!” 

Katsuki looks at him questioningly when Izuku starts to blush furiously. 

“What is it?” 

“Ah-hahaha, nothing, just,” Izuku laughed nervously as he starts to ramble, “It’s just, Shindou-kun kept saying I had an alpha, but that’s silly. He even said you were my alpha, and it’s like ‘yeah, right like Kacchan would ever be my alpha.’ Just ‘cuz we live together!! Isn’t that silly? But of course you’re a great alpha! You know Kacchan, you’d make a great mate!” 

“I am a great mate, you asshole!” 

“To who!” Izuku’s jaw drops.

“An oblivious, useless idiot!” 

“That could be—oh.” Katsuki watches Izuku’s eyes light up in realization.

“Oh, is right, dick.” 

“So, how long has this been a...thing?”

“Since we presented.”

“So the scenting…”

“Not platonic.”

“Ah, wow, um...so me moving in..”

“Was me seriously courting you.”

“Ah, and the food and nesting materials?”

“Me, taking care of my fucking mate!”

“So, my lack of Valentines…”

Katsuki rolls his eyes, “You were spoken for. What? RomCom’s and Ice Cream no longer good enough for your high maintenance ass!?”

“No! I didn’t say that! But, Kacchan! We’ve been living together for three years! Why haven’t you, you….yenno??”

“Oi, asshole, I was doing everything by the book. I was waiting for you to fucking invite me in!” 

“You’re an Alpha not a Vampire! You should’ve asked!”

“I didn’t wanna push you if you weren’t ready! I offered to be a heat partner and you were always ‘It’s okay Kacchan! I got this!’” He imitates Izuku’s voice.

“You mean to tell me, I had the perfect Alpha this entire time!?”

Katsuki watches Izuku’s bewildered movements and his even more bizarre muttering. He looks completely shaken, realizing that he’d been taken this whole time.

“All those heats! Especially the unbearable ones, and I had the perfect partner right there . I really am a useless Deku!” 

“Oh, he finally acknowledges it,” deadpans Katsuki.

“Kacchan! I’m—wow, I’m really sorry! I thought you weren’t interested in me like that. I thought yenno, we grew up together, and..wow I’m an idiot. This whole time I’d been pining, and I—I’m sorry Kacchan! Is there anything I can do to make it up to you??”

“Well…,” Katsuki blushes.

Izuku blinks and starts to laugh nervously, “Ah, that.” 

“Kacchan,” he straightens up and takes a more serious tone, “I accept your courtship.”

“Oh boy.”

“You said you were doing this by the book! Seriously, Kacchan. This whole time, I kept telling myself how great an Alpha you’d be to your mate, thinking how lucky they’d be and dammit. I never thought it would’ve been me. It just felt so natural to be by your side!” 

“That’s exactly why I chose you as my mate Deku, it’s always been you. Being with you is as natural as breathing.” 

“Kacchan…,” Izuku’s eyes water.

“Oh God, here come the waterworks. Look, this is not just your fault. I probably should’ve been a bit more straightforward. Though, I never would’ve thought you’d be this dense about it.” 

Katsuki inches closer to grab Izuku’s hand, “So, I’ll tell it to you straight Izuku. I love you, I’ve always loved you, so, be my mate?” 

Izuku tackles Katsuki in a hug, “Of course I’ll be your mate Kacchan! I love you too!” 

Katsuki sighs happily, rubbing his scent gland against Izuku’s before planting a chaste kiss on his lips, “Fuck, this should’ve been a thing a long time ago.” 

“Sorry I’m such a Deku,” Izuku laughs as he kisses Katsuki a little deeper, “come to my nest tonight?” 

“Fucking finally,” Katsuki grumbles into Izuku’s hair, “You bet your ass I’ll be there.” 

Izuku giggles as he nuzzles Katsuki back. Katsuki tries to get up from the couch to get them dinner, but Izuku insists they start their Valentine’s Day tradition now. As much as Katsuki is against having ice cream for dinner, he lets it slide just this once. Izuku had a heck of a day, the omega deserved this. Finally getting out of Izuku’s hold he grabbed the ice cream in the freezer and a couple of bowls and headed back to the living room. Izuku was already flipping through their streaming service picking out a RomCom for them to watch.

Once Katsuki sat down and a  movie was picked, Izuku draped the blanket over both of them as he snuggled up against Katsuki’s side. It was a stark difference to previous years, thinking Izuku was just keeping his distance, not ready for something more physical . Boy, had he been wrong. Izuku was physically affectionate now that the air was cleared between them. 

Katsuki reveled in being able to touch Izuku freely, hold his hand, even sharing a bowl of ice cream made him more complete. He watched as Izuku slowly succumbed to sleep, gently shaking him awake to send him to get ready for bed. As Izuku got ready, Katsuki cleaned up the kitchen and got a small wicker basket out and filled it with Izuku’s heat care package: water bottles, tons of snacks. He had always taken time off of Izuku’s heat to care for the omega, even though it had driven him crazy to be in the apartment with his tantalizing scent. He would pack snacks that would last Izuku during the day, but would still prepare food and leave them by his door for him to eat proper meals. He stayed in the living room, and would keep himself occupied until Izuku called on him for more water or more food. He’d hear the door open and the scurrying of feet knowing that Izuku was running to the bathroom to relieve himself. 

When Izuku’s heat was over, Katsuki always made sure to have a hot bath drawn for him. Despite him saying that Izuku was shitty at taking care of himself, Katsuki took great pride in taking care of his partner. Katsuki scoffed at the thought, but the nerd thought I was just doing this out of the goodness of my heart.

He heard the bathroom door open and Izuku appeared at the opening of the hallway, dressed in the silk shorts and robe that Katsuki had gifted him yesterday.

“Kacchan,” he said bashfully, “um, whenever you’re ready. You can come in.” 

“Ok, I’ll be there in a bit then.” With that Izuku went to his room, leaving his door open. 

Katsuki tried to keep his alpha in check as it wanted nothing more than to dive into Izuku’s nest and hold his omega, but he didn’t want to overwhelm Izuku. The relationship was just starting to shift, and he didn’t want to fuck it up. This was years in the making, and Katsuki could barely contain his excitement. 

After showering and changing into a pair of silk boxers (that he may have gotten as a matching set for when the time came), he collected the basket and walked into Izuku’s room, shutting the door quietly and placing the basket beside Izuku’s nest. Izuku sat cross legged in the center of it, shifting over slightly and patting the space next to him for Katsuki to come. 

He takes a deep breath and exhales, this is what he’d been waiting for, for a very long time. It almost seems surreal, being bathed in Izuku’s scent so wholly and completely in the room. He steps into Izuku’s nest; which consists of a futon separate from his bed, completely surrounded with soft things and pillows, it’s almost like a fort Izuku would build when they were younger.

Katsuki sinks into the softness of the nest and Izuku is the first to lie down. Katsuki follows suit and sighs, Izuku’s nest was fucking comfortable as hell. 

Izuku turns on his side to face Katsuki, who mirrors the movement. Izuku smiles at Katsuki and says, “Happy Valentine’s Day Kacchan,” and leans forward kissing him on the lips. 

Katsuki kisses back lightly, wrapping his arm around Izuku’s lower back and pulls him closer, “Happy Valentine’s Deku,” and kisses him a little deeper. The two exchange kisses and slowly make-out with one another till Izuku starts to succumb to sleep again.

He brushes green curls aside and presses a kiss to Izuku’s forehead whispering “Good Night.”

----

Izuku giggles in his sleep, searing hot lips peppering kisses into his skin. A hot tongue swiping across his scent gland has him moan wantonly for more touches. Hands lightly skim down his burning body making him shudder in anticipation. He can feel his cock straining against his boxers and the slick of his heat starting to pour. His heat is in full effect. 

“Izuku,” a gruff voice calls for him against his skin.

“Mmm?” Izuku’s eyes hazily open and he’s met blond hair in his face. He blinks a few times realizing, oh, this isn’t a dream, “Kacchan…” he calls back softly, recalling the previous nights events. 

Katsuki raises his head to meet Izuku’s eyes, and Izuku’s met with dilated dark ruby red eyes, his alphan scent starts fill his nose, the blond starts to lick his lips before he says, “You’re gonna ...have to take the lead here, otherwise...” 

Izuku doesn’t hesitate to crash their lips together for a messy make-out session. Katsuki’s hands run up and down his back and Izuku moans out, “Touch me,” as he reaches back and drags Katsuki’s hands lower to cup his ass. 

Katsuki groans into Izuku’s mouth as he slides his hands under Izuku’s silk shorts and squeezes his ass, pulling his cheeks apart, allowing more slick to slide down his thighs. He breaks from their kiss cursing, “Fuck, Deku you smell so god damn good, I want to taste you. ” 

Izuku sits up shimmying out of his shorts and gets on all fours, lowering his chest to the floor as he presents himself to Katsuki, “Please, Alpha.” 

Katsuki growls as he moves behind Izuku. Izuku feels Katsuki flatten his hot tongue press against his taint, dragging up to the source of his slick. Izuku whines and Katsuki moans, “fuck, you taste so sweet,” 

Katsuki continues to lick and lap at Izuku’s hole, more slick pouring out with Izuku’s growing arousal. Izuku jolts when Katsuki’s tongue pushes through the rim of tight muscle and simultaneously stroke’s Izuku’s member. 

Izuku moans long and loud with each stroke and each penetration, soon he begs for more. 

“Ka-Kacchan, please,” he pants, “Need you, need your knot.” 

Katsuki pulls off, sitting back on his knees, Izuku’s slick shining across his face; he uses the back of his hand to wipe off the excess before telling Izuku, “get comfortable then.” 

Izuku rolls onto his back legs spread. Katsuki moves a pillow under Izuku’s back before he takes his place between Izuku’s legs, leaning forward till he’s completely atop the omega. Izuku wraps his arms around Katsuki’s neck and kisses him deeply.

“Ready?” Katsuki asks as he lines himself to Izuku’s entrance. 

Izuku nods and swallows thickly in anticipation. The air freezing in his lungs when Katsuki starts to push forward; his knees clamping at Katsuki’s waist as he gasps. 

“Baby, I need you to relax,” Katsuki says against Izuku’s ear, “it’ll hurt more if you don’t relax.” 

Izuku whimpers but nods, willing his body to relax as Katsuki waits patiently to move again. 

“Okay, I’m okay,” Izuku pulls Katsuki’s face to meet his, and caresses his fair skin. Katsuki nods in understanding and kisses Izuku till his body is more lax and starts to push further in. Izuku’s eyebrows pinch as he groans into Katsuki’s mouth at being filled. 

When Katsuki is fully seated, he pulls off of Izuku panting, red eyes searching green, “I’m okay Kacchan, just. A moment,” he wiggles around getting himself comfortable at being so full.

Katsuki growls, “I only have so much self-restraint.”

Izuku giggles softly, watching Katsuki’s composure being tested, “Ok ok, I’m—you can move now.” 

Katsuki grunts in response, slowly shifting his hips and withdrawing, “Fuck you’re so tight,” he just about whispers. 

The rhythm is slow and tenuous, getting them both accustomed, Katsuki listens for Izuku’s vocal cues on when to go faster, “Ah Kacchan, yes! More, more! Harder!” 

Katsuki pulls off of Izuku’s body, his hands gripping Izuku’s waist as he starts to pound the omega harder, Izuku’s hands gripping his forearms, blunt fingernails scraping down them as Katsuki drives deeper and harder. Izuku’s moans get choked up as he gasps for air. 

“Ah! Right there!” Izuku cries when Katsuki finds his sweet spot. Katsuki adjusts his position again, leveraging his body weight by placing his hands next to Izuku’s head. 

Izuku’s hands wrap around his back and his legs around his waist, his back arching off the bed as Katsuki continues to graze his prostate, “I’m close, so close.” 

Katsuki growls, wanting to make Izuku cum, pistoning his hips slightly faster.

“Ah, Kacchan! Knot, I want your knot!” 

“Fuck,” chokes out Katsuki, those words appealing to his alpha, “I’m close.” 

Izuku loosens his arms around Katsuki, falling back into the nest, reaching for Katsuki’s face and pulls him down flush against him. 

The omega licks and nips at Katsuki’s scent gland; the blond feeling his knot starting to swell. 

“Come with me,” Izuku says, Katsuki almost snarls at the words as he slams into the omega one more time. Izuku cries out loudly when he feels Katsuki’s knot lock into him filling him up with cum. Izuku comes simultaneously, spurting white between them.

The two pant, coming down from their high. Izuku’s hands running up and down Katsuki’s arms, with a loving smile. Katsuki lies atop Izuku one more peppering kisses across his face, nuzzling at his scent gland whispering, “My Beautiful Omega. I love you, Izuku”

Izuku cries with happiness at the words, he’d been dreaming of the perfect alpha all this time. But the perfect Alpha was in front of him all along. He kisses Katsuki passionately before saying,

“My Perfect Alpha. I love you too, Kacchan.”