Chapter Text
The weekend Katsuki spent with Deku through the alpha’s rut will be forever branded in his mind as the pinnacle of his sex life. The omega thought that being 40 meant all the best sexual years of his life were behind him and that it’d be downhill from this point on — with a few past-their-prime alphas and way too many knot toys. Izuku showed him how sorely mistaken he was.
The chance to teach a young alpha exactly how he likes to be fucked wasn’t something Katsuki ever looked up for. In his twenties, he’d have ran away from any alpha that confessed being a virgin; and in his thirties, he didn’t even think it was a possibility to pass by one, alphas seemed to start shoving their knots wherever they could in fucking high school. And yet, those days with Deku involved so much learning for both of them.
There wasn’t even one surface on Katsuki’s penthouse that they haven’t fucked on — Deku made damn sure of that, taking every chance he could to press against the omega, kiss and lick him all over until Katsuki was demanding his knot. And what goddamn stamina the young alpha had; it left Katsuki cross-eyed and with shaky legs, but he would be damned if he didn’t keep up with shitty Deku.
And damned if he didn’t enjoy every single second of it.
Katsuki enjoyed riding Izuku so much that when the weekend was over and the alpha went back to being his awkward, meek self, Katsuki didn’t give him the whole ‘we had our fun but shit stops here’ speech he had prepared. He was honestly ready to try going back to normal with Deku and if the alpha couldn’t do that, to just fire him and hire someone else. Sure, Deku was a great journalist, but there are always great journalists to hire in the country. Katsuki won’t put up with a shitty alpha who can barely walk around the office without slamming his face on the glass doors and that doesn’t know his place. Sticking his knot in Katsuki’s ass isn’t enough to warrant Deku a free pass.
However, Katsuki held his tongue — without a good reason — when he sent Deku home that Sunday night. And, Monday morning, Deku held his head low, worked harder than usual, and was overall the best employee Katsuki could ask for (not taking into consideration his hideous clothes). The whole week Deku was even more diligent than usual to the point his supervisor made a formal compliment of him to Katsuki. And, considering Katsuki himself was way less winded-up and stressed out than usual, it was clearly a win-win situation.
It was impossible to not consider making their little arrangement something that could work on a repetitive schedule.
Still, it wasn’t until Katsuki had an extremely stressful day when a famous foreign model was being a diva during a photoshoot and led everyone to the brink of insanity that he decided to do something about it. Katsuki waited until everyone in the office had gone home for the day and stalked to the journalists’ room where he knew Deku would still be working overtime like he always does.
“You know I don’t allow overtime,” he had said, startling Deku, which almost made his papers fly around from how flustered he got.
“Mi-Mister Ba-Bakugou!” Deku stuttered, a pretty blush already all over his cheeks. “I-I’m sorry! I-I ju-just wa-wanted to-”
“Just wanted to make some extra dime of company money?” Katsuki asked even though he knew there are other reasons Deku stays late at the office.
“N-no, no! I didn’t- I’d never-!” the alpha tried to explain himself, but Katsuki devilishly sat on top of his desk. Deku’s eyes went wide, watching how Katsuki’s pencil skirt hiked up as he crossed one leg on top of the other; the slit on it quickly going from office-cheeky to obscenely-revealing.
“Oh, so you have other reasons to stay past your hours, Deku?” Katsuki teased.
However, he didn’t get a response; Deku’s mind clearly wasn’t in their conversation anymore. The alpha’s scent took the dangerous stormy notes that denounced his arousal, and his eyes didn’t stray away from what was showing of the omega’s thighs.
“Whatever your reasons may be, it doesn’t change the fact you’re costing me money, Deku.”
Katsuki knew his voice was in the honey-dripping tone that did nothing to hide his hidden agenda, but he was way past caring. Deku’s pheromones took his mind back to having the alpha on his back in his nest some weeks ago, and there was nothing that Katsuki wanted more than a redo of that weekend at that point.
“How are you going to pay me back for that?” he asked, uncrossing his legs with little regard to the fact his lacey wine-red underwear was in clear view, precisely on the alpha’s line sight.
“Kacchan…” Izuku whined and crooned. Katsuki could see how the alpha’s hands were shaking with barely constrained need to touch him. He loves to see Deku struggling to keep himself in check when he’s in the room, and that made Katsuki drunk with power.
“Get to work, Deku,” he said, spreading his legs with little regard to the mess of papers he was sitting on.
There was no need to specify what type of work he was expecting from Deku. As soon as he was given permission, the alpha’s hands were on his thighs, massaging him, and Deku’s face was finding its way beneath his skirt.
All rational thought about not fucking the half-his-age alpha who happens to be his employee in an open office went over Katsuki’s head when he felt Deku’s tongue licking his cock over the lace. Katsuki’s eyes went to the back of his head, and he surrendered himself to Deku’s wicked mouth.
The alpha pulled the underwear to the side and went to town sucking Katsuki’s dick and eating his asshole until slick and cum were dripping from his chin. All Katsuki could do was hold on tight to the edge of the table and Deku’s wild curls as he rode out his orgasm. Deku drank it all eagerly and licked him clean — but in a true Deku fashion, he didn’t make any move to relieve himself, even though his straining erection had already made a wet patch on his fugly khaki pants.
After coming down from his high, Katsuki took one look at the eager and in awe expression in Deku’s face (and one sniff on the aroused-to-death scent he was giving off) and made his decision. “Let’s go, Deku. I think I have other things I want you to pay me back for at my nest.”
The rest, as they say, is history. Katsuki and Deku went on at wee hours in the morning, until both of them were honestly worried they’d be late for work. And they kept doing it whenever convenient — be it by Katsuki dragging Deku to his nest after work, or having a quickie in the copy room during lunch break. Whenever Katsuki gets horny, he knows Deku will come through to him, and this is doing wonders for Katsuki’s skin and mood.
He’s been in such a good mood he even accepted going out for drinks with the idiots that called themselves his friends during college. That doesn’t warrant them much of Katsuki’s attention, though.
“Can you put your phone down for five minutes, Baku?” Mina complains, rolling her eyes.
“It’s printing week, bitch. You know I can’t,” he grumbles, still pocketing his phone just so they don’t annoy him too much.
“It’s always something, dude,” Kirishima says. “If it isn’t printing week, it’s finishing editorial week, or photoshoot week, or talking to the advertisers week. You need to learn how to relax before you die of an early heart attack.”
“Well, I wouldn’t say anything, but I think Baku has learned how to relax just fine,” Kaminari says, winking to Katsuki like an idiot.
Honestly, Katsuki deeply regrets having pity-hired Kaminari as an IT specialist. First, because he’s a goddamn awful technician (so many short circuits); and second, because somehow he knows more of office gossip than the shitty secretary that plays candy crush during half her shift.
“Oh, really?” Mina asks, already anticipating the tea.
“Oh, yeah. Baku here got himself a boyfriend,” Kaminari states proudly, making Katsuki almost choke on his martini.
A fucking what?
The table fills with wolf-whistles and playful jokes, to which Katsuki barks, “I don’t have a goddamn boyfriend, moron! I’m not fifteen!”
“Don’t lie to me, Baku,” Kaminari huffs. “Everyone noticed you’ve been showing up at work reeking of alpha and your car smells like a sex dungeon. Besides, people saw you leaving the building with a man inside your car.”
Thankfully, it seems that no one noticed who is the alpha that Katsuki has been sleeping with. If Kaminari doesn’t have that information, it means no one in their office knows either. This makes it easy for Katsuki to allege he’s been seeing an alpha from another company that works on their incredibly big building.
Rolling his eyes dramatically, Katsuki huffs, “He’s not a boyfriend, Dunce Face. We have a… fuck-thing going on.”
“A fuck-thing?” Sero raises an eyebrow. “Like a friends-with-benefits kind of deal?”
“No,” Katsuki dismisses promptly, snickering. Deku most certainly isn’t his friend. “He’s more of a... boytoy.”
“Oh, ma!” Mina exclaims, giggling. “So he’s younger? Tell me more, Baku! We need the deets!”
“He’s 23,” Katsuki smirks. “A journalist in one of the other magazines in the building.”
Everyone seems to be in the exact right degree between scandalized and jealous as Katsuki wanted them to — everyone, but Kaminari.
“Nah, I don’t bite it,” he says, crossing his arms. “Boytoy? Your secretary said you got flowers one day, and less than a week later, you got a fancy basket of tea and pastries. Those look like a courting gift from where I’m at.”
That’s a little harder to explain. Izuku has been sending some odd gifts to him. Though the alpha hasn’t signed any of the cards, Katsuki knows it’s him because when he cornered the nerd in the bathroom to offer a thank-you-for-the-expensive-tea blowjob, it was not hard to make Deku spill that he wanted to do something nice for Katsuki for having worked so hard. But that’s the thing — that’s just how Deku is. Deku likes to spoil Katsuki, and why would Katsuki say no to that?
As far as he’s concerned, as long as Izuku keeps their relationship a secret, there’s no reason to forbid the alpha from pampering him. Deku still has that sweet, childish awe for everything that Katsuki does and showers the omega in praise whenever he can. Buying some gifts is just part of Deku’s whole thing, and Katsuki quite likes being spoiled. It doesn’t mean anything, and it certainly doesn’t make them boyfriends.
“He just does that,” Katsuki shrugs it off. “He knows we aren’t in a relationship, and he agreed to keep things casual. We just like fucking.”
His friends shoot him very skeptic glances, but no one dares to openly challenge him. They know better than to antagonize Katsuki when he’s in one of his rare good days.
Katsuki tries to brush off the argument that Deku could be sending him courting gifts as something unimportant. Deku wouldn’t be courting him, for sure. Katsuki hired the damn alpha because of how intelligent he is; Deku wouldn’t do something so useless after he’s already fucking Katsuki. How goddamn stupid an alpha would need to be to try courting an old omega they’re already knotting?
However, Kaminari’s words stick to his head, and the things Katsuki sees Deku doing in the next few weeks give him a clearer picture of what’s going on.
It started slowly. So slowly that Katsuki didn’t even notice when it began. But day by day, Deku began dressing up better for work. Gone were the cargo shorts and the khaki pants; he started wearing shirts that actually fit him and ties without dumb, nerdy patterns on them. Deku may not be a fashion icon, but it was impossible to ignore the change when a whole week went by without him wearing even one of his grandpa vests.
And Katsuki wasn’t the only one who noticed Deku’s wardrobe improvement. As the alpha began wearing clothes that aren’t three times his size, the other people in the office realized what Katsuki already knew — how fucking hot Deku is beneath the layers of polyester. He’s got thick arms and a nice torso; though he isn’t buff, he’s naturally big and wide like a proper alpha.
Not only that, Deku seems to have gotten over a good portion of his anxiety and isn’t dropping shit left and right around the office. His stutter got much better, and he’s been able to talk more in the journalists’ staff meetings, showing everyone why Katsuki took such a big risk to hire him.
Adding these changes with the fact that Deku has always been a very polite and gentlemanly alpha, the other omegas in the office began truly noticing Deku. Katsuki can see how they bat their fake eyelashes to him and meekly ask the big alpha to carry stuff for them around the office — and, since they have so many omegas in the office, he can smell the sickly sweet scent they’re all giving off that override even their extra-strong scent neutralizers. Never before Katsuki had felt annoyed for working in an omega-dominated industry, but the damn come-hither scent his employees transpire every time Deku walks through the room is giving him migraines.
And Deku, the goddamn idiot, pretends he doesn’t notice anything that’s going on. He prances around the office, with his big, stupid smile and those jiggling curls on his hair, helping every bitch who asks him to carry their pile of clothes. Katsuki feels like yelling at them to remind everyone those fucking extras were hired precisely to carry clothes around!
Even some of the fucking models decided they wanted a piece of the nerd. Never before had so many models decided they wanted the journalists’ input on how to properly model lingerie. Actually, Katsuki doesn’t think any of his models ever thought they needed a journalist’s opinion before posing for any picture. But now, lo and behold, their newsroom became Thong-central.
Katsuki prides himself on being a smart man. It doesn’t take long for him to understand what Deku’s playing for. Clearly, after they began fucking, Deku decided he’s a big shit and is now trying to get all the omegas in the office to fall for him. He may actually even be trying out some of his moves on Katsuki to see if they work before he tries it on the other omegas, like the flower shit.
At first, when Katsuki realized it, he thought it’s a pretty smart move on Deku’s part. No alpha wants to stay unmated forever; it makes sense Deku would take advantage of his newfound confidence to snatch an omega. The nerd is 23 years old, after all, prime mating age.
But as the days go by, this shit starts grating on his nerves.
How fucking pathetic it is to have all his useless employees falling over themselves for shitty Deku?! Don’t they have any sense of decency? Don’t they remember that barely a month ago Deku thought it was alright to wear a Donald Duck tie to work because, and Katsuki quotes, “the blue on the tie matches the blue on my socks?” It took Katsuki a thirty-minute rant until Deku understood why his socks shouldn’t be showing in the first place — hint, he shouldn’t be wearing shorts to work.
Is Katsuki the only one with a fucking memory in this fucking office?!
And if that wasn’t bad enough, Katsuki hates the fact Deku is using him to score other omegas! Now that Katsuki can see past Deku’s pampering for what it truly is — a test to see if an omega would like if Deku did that for them — every one of his acts is tainted in Katsuki’s eyes.
It’s only natural that Katsuki’s moods start to sour after that. He gets irritable and even more demanding than usual — which should mean that the damn omegas in the office should go back to paying attention to their jobs. But no, Katsuki isn’t that lucky.
The moment he arrived at work that morning, he saw his useless secretary blatantly flirting with Deku, right in front of his office! The goddamn nerve of these people!
“Ye-yeah,” Deku stutters, scratching his neck. “It’s new… Figured I could use some new work shirts…”
“It looks great on you! The color really brings out your eyes!” the secretary coos, almost making Katsuki throw up his breakfast. “And the fabric-”
“It’s a goddamn disgrace,” Katsuki interrupts them, startling the two love birds. “Where the hell did you buy this shirt? Old Navy? I haven’t seen something so plastic since this one’s last lip injection,” he points to the secretary with his head. “And don’t any of you have any work to do?”
“I- I’m sorry, Mister Bakugou,” Deku mumbles, lowering his head and quickly vanishing from Katsuki’s sight. The secretary doesn’t have the same luck of working in another room and looks like she knows she’ll be the target of Katsuki’s wrath for the rest of the week.
And what a shitty week it was. Katsuki had back to back meetings with advertisers who were particularly more keen in fucking with him than usual. He almost didn’t have time and energy to get angry about his employees’ incompetence since he had to battle teeth and nails for every goddamn penny out of those leechers he negotiated with. Katsuki was tired and stressed out, ignoring everything that wasn’t an emergency and lashing out at anyone who came too close.
One of those who didn’t come close the whole week was Izuku. The alpha must have heard about the boss’s terrible mood. Or maybe he was too busy with the brainless omegas in their office to care about Katsuki.
In any case, when Friday arrived, there was nothing Katsuki wanted to do more than getting Deku on his nest to ride out all the tension from this hellish week. He spent most of his afternoon meeting just planning on meeting Deku after work, ordering his favorite takeout, and spending the whole night eating spicy curry and having sex. Actually, make that the entire weekend — Katsuki doesn’t want to see the outside world until he has to come back to work on Monday.
However, when Katsuki finally manages to shoo away the last advertisers from the meeting room, the whole office is empty and dark. That shouldn’t be out of the ordinary, it’s way past office hours, and every one of his workers should already be home — everyone, except Deku. Deku always waits for Katsuki to be done with his things on Fridays. Katsuki can’t even remember if they ever didn’t go home together at the end of the week after they began hooking up.
There’s just one explanation to this — Deku has gone out with another omega.
Katsuki can even see it; Deku and the stupid secretary in some chain restaurant, eating french fries as if they were actually French. The bitch must be smiling with her overlined lips as Deku pretends to know what he’s doing, picking from a wine menu that only has five options.
Something dark and bitter settles on Katsuki’s stomach, and he picks up his phone to call Deku without even thinking through what he’s going to say. All that he knows is that he needs to catch Deku in the act.
The line calls for way longer than Katsuki would normally think is acceptable to wait for someone, but, finally, Deku picks up.
“Good evening, Mister Bakugou,” he says with a wary voice. Probably becoming aware that Katsuki is onto him.
“Deku, where the hell are you?” he demands. “I just got out of my meeting, and you weren’t waiting in your office.”
“I-... I’m sorry… I wasn’t feeling very well and decided to come home….” Deku gives his excuse.
“Home? Are you sure?” Katsuki hisses, fury growing inside him.
“Yeah… I’ll just stay in for the night… Good night, Mister Bakugou.”
So Deku took the bitch home already. He really thinks he’s hot shit just because Katsuki decided to fuck him. But Katsuki will put the shitty alpha in his place. Who Deku thinks he is to brush off Katsuki in favor of some cheap bitch?
Blinded by fury, Katsuki quickly pulls Deku’s address from the employees’ database and drives there.
Katsuki can’t believe Deku’s nerve, thinking he can just finish their arrangement without even talking to him about it! It’s sickening, the petulance of these alphas! They’re all the fucking same; one chance of getting their knots wet and they start thinking they’re all that. If it wasn’t for Katsuki, Deku would still be stuttering and dropping coffee mugs around the office!
As soon as he got to the building, Katsuki marched straight to Deku’s flat. He knocks on the door hard enough to make it shake on its hinges, prompting Deku to come to open up for him as quickly as possible.
“Mi-Mister Bakugou?” he stutters, clearly nervous at being caught in the act. “Wh-What are you doing here?”
“Why shouldn’t I be here, Deku? Are you hiding something? Or someone?” he accuses, already pressing his way inside the apartment.
However, when he enters, he doesn’t see the omega. Katsuki looks around, scrutinizing every corner where Deku could have hidden someone, but from what he sees, it’s not like he has much room to do so. The flat is quite small, the whole thing probably fits inside Katsuki’s living room.
The kitchen and living room are connected, and, clearly, there isn’t anyone there. The place screams ‘Deku’, though. Most of the wall is covered by bookshelves that hold all kinds of books, manga, and magazines, with the odd action figure between them. Besides that, there is an old couch, a TV with too many superhero DVDs piled on it, and a small round table with so many packages on top that Katsuki would be impressed if Deku actually managed to eat there.
“Mister Bakugou?” Deku tries grabbing his attention.
But Katsuki isn’t done with his investigation. Without a second thought, he stalks over the only door around, which must lead to Deku’s room.
And he’s right, it is Deku’s room, but it’s also completely empty. There isn’t even the scent of anyone else besides Izuku’s anywhere in the apartment.
The bedroom is even smaller than the other area. Deku has a modest bed that won’t impress any omega looking for a new nest, a dresser, and an open closet that wouldn’t fit half of Katsuki’s shoes. The place isn’t dirty or ratty, but it’s certainly tiny and economical.
“Mister Bakugou, what’s going on?” Deku asks, having followed Katsuki to his room.
Katsuki turns to Deku and, for the first time that day, really looks at him. Deku is wearing an old superhero t-shirt and some running shorts that screamed ‘staying at home’ attire. Suddenly, the idea that Deku had someone staying over seems absurd, and the words fall from Katsuki’s wavering.
“I thought my secretary was here with you.”
Deku frowns, confused, “Why would she be here?”
“Don’t give me that fucking look, Deku! I’ve seen how you two have been flirting! And then you blow me off without a goddamn reason?!” he barks, frustration in every word.
With a tired sigh, Izuku looks around the room. “Well, she’s clearly not here. Do you want to check the bathroom?”
Katsuki squints at him. “Are you trying to be funny?”
“N-no, I just-” Izuku tries talking but stops and takes a breath before going again. “I’m not seeing anyone, Mister Bakugou, and I’m not-”
“And what the hell is this ‘Mister Bakugou’ shit?! You never call me that outside the office!” Katsuki interrupts.
“I’m not flirting with anyone,” he finishes.
“Bullshit! Only an idiot wouldn’t notice you changed your whole goddamn wardrobe to impress the omegas! And there isn’t any goddamn omega in the office who isn’t drooling after you these last weeks!”
“Yeah, actually there’s one. You.” Izuku offers him a sad smile. “I- You’re right… I was trying to impress someone, but it certainly wasn’t your secretary…”
“What?” Now it’s Katsuki’s turn to be confused.
“I- I thought that-” Deku bites his lips and shakes his head. “Nothing important. This is stupid…” And with a defeated expression, he turns around and walks back to the living room, trying to finish the conversation.
But Katsuki isn’t even close to getting the answers he needs, so he follows the demanding, “What did you think, Deku?”
“I thought that… If I dressed a little better and-... If I was a little less of a ‘Deku’... I might have a chance of actually courting you…” With his back still turned to Katsuki, Deku indicates the table with the packages. “Those are for you… I wasn’t planning on taking them to you anymore because I didn’t think we’d meet after work anymore… But since you’re already here-... It’s not like I have anything else to do with them…”
As Deku rambles, Katsuki approaches the table to check out the packages. They’re all gifts — several books from authors and subjects he and Deku discussed between rounds of sex, a bunch of Katsuki’s favorite tea brand, some fancy swiss chocolate, and a designer scarf that Katsuki knows costs about a third of Izuku’s monthly salary.
No matter how much Katsuki would like to deny it, these are all courting gifts picked especially for him.
“Deku…” his voice betrays the conflicted feelings of his heart.
“Don’t-” Deku interrupts him. “I know, alright? I know it’s stupid and that an alpha like me doesn’t have a chance with someone as incredible as you… And I know-” Deku’s voice breaks, and Katsuki can see the tears trailing down his cheek on the corner of his face. “I know you said this was just sex and that I shouldn’t expect anything else. But I really fell in love, and I couldn’t resist trying…”
And now, Katsuki feels like the biggest asshole in the face of the Earth.
He should have known better. He knows Deku isn’t just a knotheaded alpha; he’s sensitive and emotional. And he has had the hots for Katsuki since they met. There was no way someone like Deku would be able to enter a sexual relationship and not catch feelings. Katsuki's heart aches thinking about the alpha spending all his money on these gifts without even knowing if he’d give them to him.
This was terribly unfair of Katsuki. He shouldn’t have led Deku on for so long. Deku is in prime mating age; he should be flirting with Katsuki’s secretary or some of the models, or anyone who isn’t twice his age.
“Deku, it’s not like that,” he says, surprising even himself with how soft his voice sounds. “I- I’m old, I’m not ‘courting material’ and I’m certainly no ‘mate material’. You shouldn’t be wasting your money on me. What you should be doing is looking for someone your age and-”
“I don’t want anyone else,” Deku interrupts him. “I want you… And if you don’t want me, that’s alright. I was expecting it. But you can’t tell me who I should be courting.”
Under the sadness and the tears, there’s quite a bit of stubbornness and pride in Deku. From how gentle and shy he is, sometimes it’s hard to see in Deku the same fire other alphas like to boast around. Which makes it even more special when it does show up — be it in a work meeting when Deku demands to be allowed to pursue the story of Instagram celebrities not paying their sweatshop workers for months, or now when he’s clearly annoyed that Bakugou doesn’t take his feelings seriously.
It warms Katsuki’s heart, and a small smile almost makes its way to his lips. Almost. Because immediately, he remembers he can’t give in to Deku’s charms.
“Well, I know it shouldn’t be me,” he grumbles, crossing his arms in defiance. “You’re a nice guy, Deku, but I’m just not in the market for a boyfriend, even less for a mate. You can start looking for others-”
“What others?” Deku finally looks to Katsuki’s eyes, an inquisitive expression on his face. “For someone so keen on me dating other people, you seemed very angry with the idea of me being here with your secretary.”
“Ah-...” Katsuki opens his mouth but nothing comes out.
Taking a few steps closer, Deku says, “I think you were jealous.”
“Jealous? I’d never-” Katsuki tries denying, but even he can’t say such bullshit. He was madly jealous. He has been jealous for weeks since everyone discovered how hot Deku is.
“I thought you didn’t want anything with me anymore… I thought you had realized I was dressing up better to appeal to you, and that’s why you dissed my new clothes and spent a week without talking to me. So I was honestly going to give up,” Deku says, entering Katsuki’s personal bubble. The omega needs to look slightly up to keep his eyes on Deku's eyes, since the alpha is taller than him. “But now I think you were moody because you were jealous, and you were waiting for me to come to you.”
The stormy scent of Izuku’s pheromones hits Katsuki like a truck, and he almost whimpers. His inner omega begs for Katsuki to submit and let their alpha take them to his den — as bare and cheap as it is (apparently his inner omega doesn’t have standards for that). But Katsuki stands his ground and looks defiantly to Deku.
“This is nonsense, and you know it. Yeah, I wanted to keep our arrangement, but I don’t want anything more.”
“But I want more, Kacchan… I love you,” Izuku whispers, gently cupping Katsuki’s face.
“You need someone better, someone your age, someone who can still give you pups and all that shit…”
“There’s no one better than you…” Deku whispers, and in his eyes, Katsuki can see he means every word he says. “I don’t want a family if it isn’t with you… I just want to be happy by your side and to make you happy…”
“Deku…” Katsuki whispers, the alpha’s scent making him lax. He doesn’t want to fight with Deku. He wants to hold the alpha close and believe that they can be just together, no mattering how impossible that sounds.
And when Deku pulls him by the waist and kisses him deeply, it doesn’t sound impossible at all. Katsuki is helpless to put on any fight, all he can do is hug the alpha’s neck and let himself be taken to that awful bed that is the only place in the world he wants to be. Izuku hoists Katsuki up, and the omega wraps his legs around Deku’s strong midsection. The alpha carries him to bed as if Katsuki didn’t weigh more than a feather and gently puts him down.
Actually, gentle seems to be how Deku wants to play this all. His hands travel through Katsuki’s body, caressing without dominating; they make Katsuki pliable and warm. Izuku’s lips don’t take his breath away, and his tongue doesn’t rule the omega. Every one of Deku’s kisses feel light and sweet, and they make Katsuki shiver with desire.
It’s unlike any sex they ever had. Usually, Katsuki is under control, and he likes things fast and hard. Deku never protested and actually did everything he could to match Katsuki’s expectations. Now, Katsuki wonders if he shouldn’t have let Deku take the lead before, because, even though it’s not his style, he can’t say he isn’t enjoying it immensely.
Katsuki can’t even say when his clothes were discarded. When he realizes it, Deku’s lips are kissing and licking his nipples, and Katsuki feels he’s completely naked; hard, wet, and legs spread to accommodate the alpha between them. Nonetheless, he closes his eyes and lets himself be swept by Deku’s touches, pitiful little moans spilling from his lips are the only commands he offers the alpha.
Slick pools on the bed as Katsuki’s inner omega is more than willing to take Izuku’s knot — he’s actually begging for it. Katsuki never heeds much to his inner omega, the needy part of his brain, who always seemed to hinder Katsuki’s life more than help in it. When he was younger, his inner omega was the biggest obstacle to Katsuki’s objectives, and, as he got older, he transformed the act of ignoring it to an art.
But now, his inner omega took the wheel and is offering Katsuki’s body like a feast to Deku. A terrible, devastating need to have this alpha’s knot inside him and his fangs on his neck distract Katsuki’s every thought. Not even in his heat he feels so entirely overwhelmed by his instincts as he feels right at this moment. Maybe that’s the result of decades of ignoring his omega’s needs, or maybe this is just Deku’s doing.
Maybe Katsuki managed to ignore his omega’s desires for a mate so far because he never met anyone like Deku. No other alpha has ever treated him with such reverence, has ever made Katsuki feel so powerful and special. No other alpha is so gentle, so smart, and so fucking charming. No other alpha measures up to him, but Deku.
And now, Katsuki needs Deku like he needs air. The almost-there caresses aren’t enough; he needs to feel Deku deep inside him, feel their bodies becoming one. So he whines and cries, thighs open wide and shaking with need. Deku’s wicked tongue is eating him out, gorging on his slick, but that only leaves Katsuki more desperate.
“So beautiful, Kacchan,” Deku whispers, kissing his inner thighs. “You’re so perfect…”
“Shit- Deku,” he whimpers. “I- I need-”
“There’s no need to rush… We have the whole night,” Izuku says before diving down again to lick Katsuki’s hole.
Katsuki’s hands grip and twist the bedsheets, and his hips buck up, trying to get the alpha fucking moving for once. But Deku is still fully clothed and doesn’t seem bothered by how flushed and sweaty the omega is. Heat accumulates in Katsuki’s veins as he begins losing the fight against his impending orgasm.
Feeble attempts at pushing the alpha away don’t do anything to stop the onslaught on Katsuki’s body. “Deku, I’m gonna-” he tries warning, but that only makes Deku increase his efforts.
The alpha sticks two thick fingers inside Katsuki’s hole and orders, “Cum for me, Kacchan…”
The waves of pleasure come crashing down on Katsuki. His cock spurts on his belly, completely untouched, and his legs shake in the alpha’s hold. Deku needs to press him down to keep teasing Katsuki’s hole through his whole orgasm.
Katsuki blanks out after the powerful release and returns to his senses with Deku already on top of him, kissing the sweat on his temple and whispering sweet nothings. “You’re so good for me, Kacchan… The best omega in the whole world… I love you so much…”
Wrapping his shaky arms around the alpha’s torso, Katsuki purrs. He kisses whatever patch of Deku’s skin his lips can reach, wanting nothing more than to keep the alpha close. Izuku kisses him back, hugging Katsuki tight and crooning in return. Their bodies are melted against each other; however, Deku’s clothes are getting in Katsuki’s way.
He wants to feel his skin against Deku’s and wants to kiss the alpha all over. So Katsuki starts fighting against Izuku’s shirt, pulling and tugging roughly on it without actually managing to take it off.
“Hey, hey,” Izuku giggles. “I like this t-shirt. Give me just a second-” he says, finally taking the offending piece of clothing off.
“Fuck your stupid clothes,” Katsuki grumbles. “You look better naked anyway.”
“Kacchan...” Izuku whines, but whatever complaint he has dies on his lips as Katsuki kisses his neck and rubs his chest.
The alpha digs his fingers on Katsuki’s thighs, pulling him close to rub their groins together. Izuku still has shorts on, and they rub painfully on their skin, so the alpha doesn’t need any more prompting to kick it off as quickly as he can without letting go of Katsuki.
When they’re finally naked, their bodies meld together like perfect puzzle pieces. They don’t even need to change position, their tight hold is enough for Izuku’s cock to find the omega’s hole. Katsuki’s breath hitches as Deku’s cock fills him up in the most perfect way, finally fulfilling the need to become one.
Their position, however, doesn’t allow for much freedom of movement. Deku more grinds than pounds into him as they don’t allow for any kind of space to come between them. In any other circumstance, Katsuki would be pushing Deku away to get on top of the alpha and ride out his cock as fast and hard as he could. But being overwhelmed by feelings and sensations, Katsuki can only hold tight and indulge in every little friction he can get — be it by Deku’s cock going deep inside him or by his own dick being squeezed between their abs.
Deku seems pleased to continue just as they are too. His hands hold Katsuki’s hips firmly, and his mouth is stuck to the omega’s neck, licking and kissing his scent gland over and over. He snaps his hips against Katsuki with strength to make up for the lack of speed, and this slow and torturous sex is making Katsuki’s eyes roll to the back of his head in pleasure.
It’s impossible to keep track of time when being so overwhelmed. Katsuki has no idea how long they’ve been like that because all he can focus on is Deku’s searing body against his and the slow build-up of his pleasure. Every hit of Deku’s cock on his prostate makes Katsuki whimper, and it becomes even better when Deku’s knot starts to inflate, and the alpha needs to push it inside Katsuki more forcefully every time.
“Oh shi-” Katsuki cries as Deku’s knot almost doesn’t fit in his body. “Please knot me, Deku. Please, please,” he begs pitifully. “I need it. I need you!”
“I’ll give you everything, Kacchan,” Deku says huskily and pulls him to a kiss, devouring every one of Katsuki’s whines.
With one last forceful push, Deku’s knot enters Katsuki’s body and inflates, locking them together as the alpha cums deep inside his body. The flood of heat and the way Deku’s hand clasp roughly on him are enough to push Katsuki to his release again. The alpha swallows every one of his loud cries, not stopping kissing Katsuki even for a second.
As they come down from their highs, the little room fills with the sound of purrs and croons. Deku nuzzles him lovingly, a deep rumble coming from his chest and making Katsuki’s omega purr in return. All the stress from the workweek and from the other omegas flirting with Deku completely melted away. Katsuki feels every one of his muscles lax and warm; he wishes he could stay like that forever.
To not let his weight on top of the omega, Deku gently rolls them to their side and tucks Katsuki in his chest. The movement makes Izuku’s knot slightly tug on Katsuki’s inside, and he relishes the friction on his oversensitized insides. “Damn… This is too fucking good,” he moans, slowly moving his hips to feel it again. “No wonder I was being a bitch the whole week…”
Having Deku’s knot really does wonders for Katsuki’s mood — and overall happiness. To spend this whole week on his own was maddening, and now he sees how much he missed their time together.
“You can have me anytime you want,” Deku whispers against his neck.
It’d be so easy to give in. Every fiber of Katsuki’s body wants him to — he knows he’ll be happier with Deku by his side, but he also wants Deku to be happy. And Katsuki doesn’t think he’s the one who can offer the alpha what he needs. “You don’t know what you’re giving up… I’m too old and too much of an asshole to be the omega you deserve.”
Izuku rolls his eyes, “You’re not that old, Kacchan. You have decades ahead of you.”
“I am old, Deku. Twice your age, actually. I’m moody and bitchy, and I can’t give you pups,” he grumbles, annoyed that Izuku can’t see that.
“You’re not old,” Izuku says, gently kissing his lips. “I’m pretty sure you can have pups if you want. And if you don’t want to, it’s fine for me. You, better than anyone, should know you don’t have to have kids to have a fulfilling life.”
“So you’re just gonna give up having a normal life to put up with me?” he asks, looking deep into the alpha’s green eyes.
“Yes,” Izuku answers unwaveringly. “Besides, I think you’re not getting the point here; I’m the one who doesn’t have much to offer...”
Katsuki huffs, remembering the bags in the living room. “You really are an idiot. I can’t believe you spent most of your wage in that scarf.”
“How do you-”
“I’m the one who pays your salary, Deku, and I have a bunch of stuff from that brand.”
Looking down, Deku says, defeated, “I know… That’s why I choose that… I wanted to buy things that would make Kacchan happy…”
“I don’t need you to give me things. My closet is one pair of shoes away from becoming a hoarders episode,” Katsuki states blatantly, making Izuku wince. “I need someone who won’t run away when I get in one of my awful moods. Someone who will help me forget about work when I get home. Someone smart who talks to me about something other than clothes for a change.” Katsuki nuzzles against Deku’s throat, basking on the alpha’s fresh scent and whispers, “and I think you have plenty of that.”
“Kacchan…” Izuku looks at him, hopeful, and hugs Katsuki tighter. “I’ll be the best mate I can if you give me a chance…”
“I can’t believe you’re actually making me consider this…” he shakes his head in disbelief. “How would that even work? You’re still my employee! People would talk, the omegas in the office would go crazy…”
With a short peck on his lips, Izuku silences him. “I can look for another job if it helps.”
“And leave me without a worker with more than two brain cells?”
“They’re not that bad,” Izuku rolls his eyes with humor. “And who cares if people talk? I’m sure you’d have fun putting them in their places… And about the other omegas, I’m sure they’ll lose interest the second I appear with a bite on my neck…”
“You want me to bite you?” Katsuki asks, even more in disbelief. It’s very usual for only the omegas to wear mating bites; most alphas refuse because it supposedly makes them seem weak.
“Of course. I want to be Kacchan’s, and I want Kacchan to be mine,” Deku whispers, blushing. “I love you…”
“You stupid-” perfect alpha. Katsuki doesn’t manage to finish his phrase before pulling Deku to a rough kiss. “Fuck it. I’m keeping you. Not my fault you’re dumb.”
“You just said I was the only employee you have with more than two brain cells…” Izuku interrupts him, smiling with humor.
“That doesn’t mean much. The bar is really low when working with models,” he grumbles. “Anyway, as I was saying, I tried to warn you. But if you insist on this bullshit, we can do this.”
“This means you’re accepting my courting?” The way Deku’s eyes shine should be totally against the law. How would Katsuki say no to him like that?
“Yeah, we can say that. If nothing else, at least it’ll keep you from going bankrupt by letting the designers rip you off.”
Izuku nuzzles against him, crooning even higher. “I’m so happy, Kacchan! I can’t believe you’re going to be my mate!”
“I can’t believe it either,” Katsuki says gently, caressing Deku’s hair.
A part of him is a bit terrified about being someone’s mate after he spent most of his life saying he’d never bow down to any alpha. But looking at the cuddly Deku he has on his arms, Katsuki knows this one will never make him bow down to anyone.
When Deku’s knot goes down, a flood of cum and slick spreads on the bed, making their situation very uncomfortable.
“I think we need a shower and a change of sheets,” Deku giggles.
“I think we need a bathtub and a new bed,” Katsuki retorts. “This one is too small for us anyway. I can get a new one delivered here this week.”
“I think this one is a perfect size,” Deku smiles. “It forces you to cuddle me closer.”
Katsuki rolls his eyes, biting back a smile of his own. “You’re the worst sugar baby ever.
“I’m not a sugar baby, I’m gonna be your mate,” Deku states proudly, warming Katsuki’s heart.
“Also, you spent a fortune on the scarf and the tea, and bought your clothes in department stores? Haven’t I taught you anything?”
Deku pouts, “I didn’t have enough money to buy you nice gifts and buy expensive clothes for myself…”
“I’m the one who should buy you gifts,” Katsuki says.
“I don’t need new clothes, Kacchan. The ones I just bought are still new, and I only bought them to court you anyway. If you already accepted my courting, then they did their job well,” Deku smiles cheekily.
Katsuki pulls him to a bitey kiss and slaps his ass hard enough to make Izuku yelp. “Your omega is telling you that you’re gonna get some new clothes. What do you say to that?”
“Th-thanks, sweety?” Deku answers with an uncertain smile.
Katsuki smirks at him, “Good boy. Now go take a shower, I'll meet you there for round two.”
Izuku hops out of the bed and runs to the bathroom, leaving Katsuki to think when will be his next heat, if he stops taking his pills tomorrow. Maybe, if they organize this properly, he and Deku can take some vacations, travel to Hawaii, and claim each other while spending his heat in a resort...