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Tonight is the night. Tonight Katsuki will seal the deal with Deku. He can’t even believe they got to this point, but he won’t screw up now. He invested too much to let anything go wrong on the most crucial night of his life.
Some would say this night is more than twenty years in the making, since he and Deku met in the playground near their houses. Katsuki wouldn’t necessarily agree with that timeline, but he can’t deny that the first time he thought about having sex with Deku was almost eight years ago.
He was a freshly presented alpha studying on the top Hero school of the country. He was a cocky asshole who felt he was on top of the world, like nothing could touch him. Nothing could shake his feeling of having life in the bag until shitty little beta Deku showed up holding hands with shitty little Round Face in class.
That shouldn’t have bothered him. Why would a prime alpha like himself care that the useless betas were dating? But it annoyed him, it made him irrationally angry. He felt like tearing the whole school apart and dropping down on his knees to cry afterward. It was such a strong and devastating feeling that he had no choice but to do some soul searching to find out why.
It took some goddamn time and several meltdowns before Katsuki accepted that he was jealous. And not only jealous of the idea of having a relationship or some shit like that. He was jealous that he was not the one Deku was looking at anymore. From then on, several things between his and Deku’s past had to be analyzed in a new light.
The relentless bullying he thought he did because he was annoyed Deku was so useless clearly became a young alpha pulling pigtails since he couldn’t deal with his hormones. The times he caught himself looking over Deku’s growing physique weren’t checking out the competition, but simply checking out the goods.
However, after everything was clear to Katsuki, he still couldn’t do anything about it. The nerd was happily trading spit with Round Face, and it was no secret in class 3-A that Izuku freaked out around boobs. Katsuki lost the fight by default.
Some years later, Deku and the beta bitch broke up. Katsuki saw how sad Izuku was and couldn’t find it in him to make a move. What could he say, ‘hey, if you are tired of pussy, I’ve got a nice knot with your name on it’? Clearly Deku wasn’t interested in what Bakugou had to offer, so he kept his wishful thinking to himself.
Not long after, the nerd began dating an omega Support Hero. The fucking bitch was just waiting for her chance and she didn’t even wait for Round Face’s spot to get cold before she made her move. Izuku might be a beta, but he was also handsome, caring and on his way of becoming a top Hero. Katsuki was sure she was not the only omega with her sights set on the man.
But Deku isn’t the kind of man to keep looking around; so once they began dating, they stayed that way for over two years. Katsuki doesn’t know what happened to split the couple, all he knows is that this time he wasn’t going to give up without a fight.
Deku and he had become very close friends and completely healed their relationship. Katsuki was ready to take the next step so, before any other bitch could do anything, he gave Izuku a courting gift. A box of chocolates, some flowers and a special edition All Might magazine.
He honestly thought he would be turned down. He thought he would have to spend years working slowly towards a chance with the nerd. But that was not what happened. Izuku blushed a pretty red, thanked him profusely and asked if Katsuki would want to take him out for coffee.
They’ve been dating for two months now. Katsuki did everything by the book to court the beta. He is doing his best to take things slow and not freak out Izuku with the whole ‘I’ve got a boner for you’ issue. But in the last two weeks, their dates have grown more physical (their last making out was so steamy that the waiter on the coffee shop dropped some ice cubes on Bakugou’s lap. It was worth it).
So Katsuki got brave and asked Izuku to have dinner at his home. Yeah, they know where the night is going to lead them. And Katsuki has it all planned out.
He bought some expensive lube and has been using some training dildos (Deku is a beta, but Katsuki has felt his dick during their make outs sessions and it’s quite a generous size). He will ride that nerd for all he is worth and prove to Izuku he won’t be missing out on anything for picking Katsuki as a mate.
When Izuku arrives, everything is perfect. They have a nice dinner (Katsuki cooked the nerd’s favorite, katsudon. He doubts any omega can beat him in the kitchen, so he knows he is winning on that aspect) and then sit down on the couch with wine glasses.
Their first kisses are sweet, tentative, tasting of wine and expectations. A first hand reaches for a waist, while some other hand plays with some hair. The inches between them slowly shrink but steadily. Sweet little sighs can be heard in the dim living room.
“Kacchan…” Izuku sighs when Bakugou kisses and nibbles at his ear.
“Deku… do you want to take this to the bedroom?” He whispers in Izuku’s ear without letting his doubts and excitement seep into his voice.
“Ye-yes… I’d like that.” Izuku answers breathlessly.
They stumble across the apartment without breaking their kisses while trying to take off their layers of clothes. It’s messy and uncoordinated, but they smile and chuckle to each other between the kisses, both men too happy to care.
When they get to the bed, they both are only in their boxers, bright red for Deku and black for Katsuki. Bakugou pushes the beta on the bed and straddles his legs before diving down for a deep kiss.
“Fuck, you are hot.” Katsuki says running his hands over Izuku’s torso.
The beta giggles, “I’m glad you like it, I also think you are pretty hot.”
Bakugou smirks predatorily to him. “Wanna see this get hotter?” he asks as he rolls his ass on top of Izuku’s dick.
Deku gasps and bucks his hip up, Katsuki feels victorious.
“I’m gonna take good care of you, nerd.”
“Pl-please, Kacchan” Izuku whines bucking his hips up again.
“Let’s take this off.” Bakugou says getting up to kick his boxers off and pull Izuku’s down too.
He knew Deku’s cock was impressive, but seeing it in its full glory - hard, red and leaking - does things to Katsuki. He doesn’t think twice before going down on it.
Izuku cries loudly when his cock hits Katsuki’s throat, but the alpha doesn’t care. It’s everything he had ever wanted, warm and heavy in his mouth. He laps onto the slit enjoying the taste of the bitter pre-cum.
Shit, he wants Deku to cum in his mouth but he also wants him to cum in his ass. It’s an impossible decision. He hopes that, in the future, Izuku can shoot at least two good loads per night to satisfy Katsuki’s cravings. But he can’t risk it tonight, he needs Izuku to fuck him so he will have to go slow on the blowjob.
Since he needs to go slow, he puts on a show for Izuku. Sticking his tongue out and letting his cock drag through his lips, then sucking his balls before licking all the way back up. He even kisses the tip for good measure.
During the whole spectacle, Izuku's thighs tremble and he makes the cutest noises, little moans and mewls that egg Katsuki on. He really could stay the whole night doing it, but Katsuki is a man on a mission.
He lets go of Izuku’s cock almost mournfully and climbs up to kiss his lover again.
“Did you like that?” He asks nibbling on Izuku’s lower lip.
“Ye-yes” the beta whimpers. “So good, Kacchan.”
“Just good?” Katsuki whispers as he kisses Deku’s jaw and neck. “I may have to work harder to be the best you ever had.”
“N-ahn-no” Izuku moans. “Kacchan is the best, Ka-kacchan is amazing.”
“Exactly. And I’m going to show you just how amazing I am.” The alpha says before raising his body to go through his nightstand drawer to grab the condoms and lube.
Izuku’s breath hitches when he sees what Katsuki took. He tries opening his legs, but can’t since Katsuki is straddling him.
“Ka-kacchan, I need-” Izuku tries saying but Bakugou interrupts him with a kiss on his chest.
“I know what you need, baby, and I’m gonna give it to you.” Katsuki says with a wicked smile as he rips the condom open and goes to put it on Izuku.
Izuku jumps in bed when he sees what the alpha is doing.
“Kacchan, what are you doing?” He asks confused, raising his body from the pillows.
“Well, it’s the first time so I thought we should go the safe route and all that but if…” Katsuki begins explaining himself awkwardly. He didn’t think Izuku would be against the condom, maybe he should have asked and-
“No, Kacchan, why are you putting it on me?” Deku asks sitting in bed. “Don’t you think it’s a little too much? Or don’t you want me to soil the sheet? I guess that makes sense, I should have thought about that before. But then it’ll be double the condoms each night, if I knew I’d have brought more too… Alright, I promise to buy more tomorrow!”
“What? The fuck are you talking about double condoms?” Katsuki asks sitting annoyed in the bed. “The condom goes in you because you go up in my ass. It’s pretty fucking simple, idiot Deku.”
Izuku tilts his head confused. “What?”
“What 'what'?” Katsuki barks.
This whole conversation is making him feel self-conscious. He was supposed to give Izuku the best fucking sex of his life, but now the beta is ruining the mood!
“Wha-why? Kacchan, you don’t need to-... I mean, I know you are an alpha. I know how these things go, I’m ready.” Izuku says with a sweet understanding smile but Katsuki is having none of it.
“WHAT? YOU THINK I CAN’T TAKE IT? You think those shitty bitches you dated could handle you but I can’t?” Katsuki yells furious and Izuku looks at him with a confused and sad expression. “You know what? I’m gonna fucking show you, shitty Deku!”
Then Katsuki pounces over Izuku knocking the beta back into the bed.
“Ka-kacchan?!” Deku asks before his lips are ruthlessly assaulted by the alpha.
The kiss is not playful and sweet like the ones they shared before, this one is hungry, desperate and trying to prove something. Katsuki grinds his own erection against Izuku’s bringing it back to full power in seconds. He will show this idiot how good Bakugou Katsuki can be.
The alpha grabs Izuku’s hands and holds them up over his head. Izuku lets himself be manhandled by Bakugou without putting up a fight and that stirs the alpha’s instincts even more. The air becomes heavy with their arousal and Katsuki bites and sucks bright red marks over Izuku’s neck and chest. His mate will be marked as his so no one else dares to even look at Deku.
When Katsuki deems Izuku thoroughly debauched, he lets go of his hands and quickly puts a condom of the beta’s dick and slicks it with lube. He thought they would do plenty of foreplay to prep him but he still worked his asshole loose in the shower before dinner. It will be a tight fit, but it should be good enough.
He puts a hand on Izuku’s chest for balance and aligns the beta’s dick to his hole. Now is the moment he has been waiting for so long, Katsuki thinks as he drops down slowly into Izuku’s cock.
“I’m gonna fucking show you who is the best, shitty Deku.” Katsuki says with a wrecked voice.
It’s fucking tight, so damn tight that the alpha’s eyes roll to the back of his head in pain and pleasure. Shit, Deku is bigger than he expected. Bigger than his training toys, and so fucking hot. It’s a searing pleasure burning through him from his asshole. The alpha’s breath is completely knocked away as he bottoms out.
He can feel Izuku’s body shaking underneath him, or maybe it’s Katsuki himself who is shaking. He can’t really tell, so he looks down to Izuku to try and find out. But that line of thought goes out of the window at the sight of Deku’s expression looking at him.
The beta looks enchanted, completely bewildered by Katsuki. His eyes shine and his mouth is open in a small ‘o’. The alpha can’t help the victorious smirk that breaks into his face because that is exactly how he wanted Izuku to look at him.
“Enjoy the show, nerd.” Katsuki teases before he starts moving.
The friction is fucking delicious. Izuku’s cock is stretching him just enough and it hits his prostate perfectly when Bakugou rolls his hips the right way. It doesn’t take long before Katsuki forgets he is supposed to be putting on a show and just focus on chasing his own pleasure.
It feels too fucking good. Katsuki knew being penetrated was potentially good, and he managed to cum with a dildo up his ass when he was training. But the real thing was something else entirely, so much better and hotter. He can’t even be bothered to care about the moans and cries that are coming off his lips.
He does care when his legs start to give up. He trembles trying to keep the rhythm he wants, but the shitty legs just can’t keep up.
“Shit! Fuck! More, shit, more!” He whines without noticing, but Izuku hears it loud and clear.
“Everything you want, Kacchan.” The beta says breathlessly before holding onto Katsuki’s waist and flipping their positions.
When Katsuki’s back hits the mattress and Izuku’s body weights down straight into his prostate, Bakugou wails.
“YES! SHIT! YES! MORE!” He cries loudly and Izuku complies pounding into him mercilessly.
The beta grabs his legs and pushes them up to Katsuki’s ears as if he was a doll. This makes the position even better for the maniac rhythm Izuku sets and Katsuki is very in favor of it. Every strong and perfect hit Izuku gives his prostate makes the alpha even closer to popping his knot. He knows the second he touches his own dick, it’s over for him.
“Please, Deku, fuck! So close! So close!”
“Do- do you wanna cum for me, Ka-Kacchan?” Izuku stutters because he is completely breathless and wrecked, but he will not stop until he gives his Kacchan everything the alpha wants.
“Yes! Please, Deku, please!” Katsuki pleads and Izuku complies.
The beta grabs his neglected cock and begins pumping it in the same rapid pace he is fucking Katsuki. It takes a second before the alpha’s knot pops and drenches them in cum.
Izuku drops his hand to the knot and massages it while still pounding Katsuki’s ass leaving the alpha an oversensitized mess and bringing wave after wave of cum out of him.
Only when Katsuki stops seizing under him that Izuku allows himself to tip over the edge. His orgasm shakes him to his core and he drops on top of Katsuki.
It takes a few minutes of they just laying there without moving before they catch their breaths. But the beta doesn’t stop massaging the alpha’s knot the whole time. The feel of Izuku’s big, strong and scarred hand is even better than an omega’s cunt, as far as Katsuki is concerned. Never before he has been so satisfied after sex.
“Told you I could do anything those bitches could.” Katsuki teases when his knot finally starts deflating.
“Shut up, Kacchan” Izuku says taking Katsuki by surprise. The alpha freezes under him feeling unsure, but the beta just grabs his face and kisses him deeply. “You don’t need to compare yourself with anyone because I’ve been thinking you are the most amazing person of all since I was four years old.”
Izuku smiles beautifully before kissing him again.
“Yeah, the sex was the best of my life.” Izuku whisper in his lips. “But I knew it would be because you are the best in everything, Kacchan.”
“You are damn right I am, nerd” Katsuki smirks at him.
“Maybe next time we can switch it up, I was looking forward to being fucked by you today.” Izuku says with a predatory look on his face.
Katsuki smiles wickedly and flips them over.
“Why wait next time? We can still go a few more rounds tonight.”