Eijirou knew better.

Katsuki was in the kitchen of their apartment making what was going to be Denki's birthday cake. It was something Katsuki always did for his friend's birthdays. Giving into his love language of cooking and/or baking for others.

The cakes were always worth the time spent on them. Eijirou was pretty sure all the Bakugou's could bake and cook better than most professionals. He had half a mind to tell them to open a restaurant or bakery instead of working in fashion.

Eijirou was more than happy to let Katsuki do all the cooking while he got all the cleaning jobs in their apartment. It was an easy trade.

He was always so happy to watch him cook, mostly just keeping the blond company since he wasn't really allowed to do much else. It turned out he was not helpful in the kitchen. While Eijirou could make most things for breakfast, that was about where his skills stopped.

But at the moment Eijirou was not about to complain about just watching his boyfriend bake.

Okay, maybe he wasn't totally fine with it because really, he was having some gay thoughts. Gay thoughts that would get him in trouble if he acted on them when his boyfriend was working.

Katsuki rushed around in the kitchen, the lights a bit softer as they usually were when he worked late at night. The blond was only in a pair of boxers that Eijirou was pretty sure were his and Eijirou was dying.

Toned legs, blond hair coating them. An apron around his waist that only added to how much he wanted to push his boyfriend up against the counter and—

"Shitty Hair!" Katsuki yelled.

Eijirou groaned and frowned at his thoughts being interrupted.

He was not in the kitchen.

Technically.

He was still in the living room. His feet stood on the side of the floor that reminded him of that much so really he wasn't doing anything wrong. Just thinking about bending his boyfriend over the kitchen counter and fucking him until he was a moaning mess. Just another day at the Bakugou-Kirishima household; where the horny thoughts won more times than not.

"Come on, you said I could watch you," Eijirou whined.

"Then why do I feel like you're undressing me?" Katsuki muttered.

Eijirou crossed his arms to protest. "I was not!"

Okay, he totally was but come on—his boyfriend was hot and Eijirou was finally able to have a physical relationship with the man he loved after so many years of being a total pining simp for his best friend.

After years of high school and then finally freshman year of college where he realized his long-term crush of a best friend liked him back. It might not have been the most graceful getting together but Eijirou was a grinning idiot for weeks.

Both drunk and ranting, Katsuki grabbed him by the shirt and kissed him. Then twenty minutes later they were leaving in a mess of stumbled running and stopping two different times to throw up on the way to their dorm.

Falling into a relationship for them after so many years of being friends wasn't really all that different other than Eijirou no longer having to joke about calling him babe and getting to hold his hand when they walked to and from practice.

Eijirou was totally fine with being boyfriends and kissing being as far as they went, he hadn't even thought to cross that line. He loved Katsuki for years, nearly as long as he had known the blond.

He knew the man was also more emotionally constipated than anyone he had ever met or heard of; being demisexual—something he didn't learn until college—on top of that Eijirou was more than happy having Katsuki set the pace of their relationship. Just as the blond did with his own boundaries.

But now, after two years of doing way more than making out and a bit of dry humping, Eijirou was ruined. Spoiled rotten by his boyfriend's attention and his perfectly round ass.

Eijirou wanted his dick in his boyfriend all the time. It was something he didn't even think about more than jerk-off material sometimes but really nothing more. He was used to his hand, used to jerking off in the shower and getting on with his day.

But now all he could do was think about sex.

And it was all his boyfriend's fault. Thinking about how fucking good it felt to cum in his boyfriend. How his boyfriend was a screamer in bed, which really, no, he did not know why he was shocked by that. Or maybe it was how fucking beautiful his boyfriend looked when he was fucking him.

How his mouth parted, his eyes rolled back as moans and gasps left his mouth—

Oh, his mouth.

Eijirou could practically feel the warm wet heat wrapped around his cock.

"I'm not even going to ask," Katsuki rolled his eyes.

Eijirou blinked.

Katsuki was looking at him, arms crossed and—damn it—Kiri blinked his apron revealing a hint of what was underneath. Plump pecs pushed together so perfectly, he wanted to—

"Eijirou," Katsuki warned.

But Eijirou was already stepping into the kitchen over the invisible border and walking towards Katsuki. The blond didn't budge, just kept up his glare, his arms still crossed as Eijirou stopped in front of him.

"I am not letting you eat any of the frosting—"

Eijirou pushed Katsuki back against the counter, leaning in and cutting him off the best way he knew how. Kissing him. Soft lips pressed to his bitten ones as he felt the blond kiss him back.

Giving in the moment Eijirou licked over his plump lips, Katsuki opened his mouth and that was enough for Eijirou to know it was okay. He grabbed him by the waist, letting his hands slip under the apron.

"I think I have something else in mind," Eijirou smirked.

He looked over to the frosting. It was still white yet to be dyed the bright yellow that was Denki's favorite color at the moment.

But since Katsuki had yet to dye it Eijirou knew the man would forgive him for messing it up. He always did seem to find a way to make it up to the blond and while the blond complained about a lot of things Eijirou seemed to always be the one person who got away with being his personal annoyance.

Eijirou stuck a finger into the mixer bowl, into the fluffy and smooth buttercream. It was fucking perfect and Eijirou knew it would taste like heaven.

He grabbed his boyfriend's jaw turning him to look at him as he pressed his finger to the blond's lips. Eijirou wasn't going to eat the frosting, Katsuki was.

Katsuki sucked on his finger and not a single complaint left his mouth. Not even when Eijirou pulled his finger back and kissed him again, rough and messy and getting more frosting to press between such perfect lips.

He tasted sweet and much like the mix of real vanilla he always used to make his buttercream frosting so much better.

Eijirou hummed.

"So good, Kats."

He grabbed his boyfriend's ass, the loose boxers doing nothing to hide how much he liked this as Eijirou pressed closer to him. He grinned at how easy it was getting the grumpy man to cave.

Eijirou pressed two fingers to his boyfriend's mouth. Letting him get them nice and coated for him while he leaned down and kissed the blond's neck. Taking extra care of the mark he sucked into his damn near flawless skin.

He pressed a kiss to his shoulder ignoring how much he wanted to rip the apron off of him and kiss every inch of skin he could. To have Katsuki grabbing his hair and demanding him to fuck him already.

Katsuki sucked on his fingers much like he did Eijirou's cock, coating them perfectly in his saliva just as Eijirou wanted him to.

Eijirou pulled back looking into his boyfriend's eyes, seeing his pupils blown out as he looked right back at the redhead. Eijirou knew he would be able to get away with this.

He pulled away from Katsuki only to spin the blond around and bend him over the counter like he had wanted to do. It was just enough to have the plump round ass in perfect view. Eijirou pulled his boyfriend's boxers off of him, leaving the blond in nothing but an apron.

"Tell me you want me to fuck you," Eijirou demanded. He pressed up behind him, rubbing his clothed dick over his ass. "Tell me I can fuck you right here in the kitchen."

Katsuki moaned.

His ass pressed out as if it were an invitation.

Eijirou seriously didn't know how he was able to control himself. Katsuki was right there bent over for him, ass pressed up against him knowing he wanted it just as badly as Eijirou did.

Then all self-control left the fucking apartment when Katsuki answered him.

"Just fuck me already, I still have a cake to decorate," the blond demanded.

"So do I," Eijirou muttered, slapping Katsuki's ass lightly to prove a point.

Katsuki moaned and pressed back into his touch a bit more. Eijirou was thankful they had gotten used to things by now, though he was still working on the whole gay panic thing he at least wasn't a fumbling mess like the first few times.

Tonight though, Eijirou was in charge. Usually, he didn't really care, he was fine with however he got to have sex with his boyfriend. Coming with him in whatever way he could. Sometimes Katsuki liked to have more of the control, ordering Eijirou what to do.

Most of the time though Katsuki was comfortable enough to give that control up. To be mindlessly fucked and to let his boyfriend take care of him fully. Denki jokingly saying one time about how much of a service top Eijirou probably was and Katsuki threw a pillow at him as soon as the statement escaped his mouth.

It was true though.

Eijirou loved taking his boyfriend apart, getting him a moaning mess, and watching him come undone and cum on his cock or tongue. Equally, he liked cleaning him up, carrying him to the shower, drawing him a bubble bath that smelled like oranges and a bit like sage. He loved the blissed-out out relaxed look Katsuki had after he came.

Right now though, Eijirou knew the stress from practice and their upcoming games was getting to him. And it was getting late, at least by Katsuki's timezone so Eijirou didn't take his time. He was rough, taking the control offered to him and making sure he would fuck his pretty boyfriend full by the end of the night.

Katsuki would complain about the clean up but he would also get mad when Eijirou didn't cum in him and really Eijirou fucking loved him for it. Eijirou kissed the back of his neck, soft and simple.

Checking in one last time before he actually did anything and also let him know it was okay to say something if he wanted to stop. Eijirou knew Katsuki would say something but he always seemed to beat himself up about it when he did.

When Katsuki hummed in approval Eijirou kicked off his own shorts, having just showered he didn't even bother with boxers.

He pinned him closer to the counter as he lowered himself to the floor onto his knees. Eijirou reached up for more frosting. Katsuki looked back at him with wide eyes.

"Eijirou don't you dare!"

Eijirou spread his cheeks and pressed a frosting-covered finger to Katsuki's pretty pink hole. He massaged the area before he pressed in completely and the blond leaned onto the counter more at the feeling.

Eijirou watched his finger press into the tight heat. He loved taking apart his boyfriend. Fingering him open gently, prepping him his mouth, fucking him with his fingers, or toys, or all of the above.

He licked over his hole, lapping up the sweet frosting which tasted even better when licked off Katsuki. Soon enough he was adding more buttercream to his fingers, pressing two fingers in.

Creamy and sweet.

Finger fucking it into his boyfriend's ass only to lick and lap at the tight rim, adding a third finger and watching how he took him so well. Eijirou stretched him slow and sweet, seeing Katsuki's ass covered in frosting and his spit.

It was dirty and a total fucking mess and Eijirou knew damn well his boyfriend was going to be pissed the fuck off when and after he came but Eijirou lapped up his entrance one more time before standing up. Somewhat hugging Katsuki from behind, his hand messy and sticky as he gripped his boyfriends hips. He kissed the side of his neck.

"Ei for the love of fuck, just—"

Eijirou cut him off as he pulled Katsuki back. Spitting in his hand because he was not about to go to their bedroom for lube. It would have been overkill anyway with the spit and frosting Eijirou had managed to coat Katsuki's hole with. He was slick enough from him.

So Eijirou paused as he stroked the spit over his dick.

"On your knees," Eijirou demanded.

He pulled the blond toward him, turning him around.

"Coat my cock with your pretty tongue so I can fuck that tight ass of yours," Eijirou smirked.

Katsuki dropped to his knees without thought. Even when he was being a brat he would listen for Eijirou. He was a Good Boy as he took his dick into his mouth, letting himself be messy with it. He coated Eijirou's dick in his saliva.

Enough to taste him but not enough to have his face covered in more than one creamy white liquid.

Eijirou pulled him off. "Good job, hands and knees."

Katsuki did just as he said. Eijirou pushed him to the ground a bit more, Katsuki pressing his ass up and in the rush to get down on the kitchen floor Eijirou accidentally pushed the bag of flour off the counter sending a cloud of said flour all over them and the kitchen.

"Eijirou for fuck's sake!"

Katsuki had flour in his hair, on his legs, on his ass, and the floor around him. Eijirou really hoped this was one of the times his boyfriend favored his hornyness over his murder instances when someone messed the kitchen up… Otherwise, Eijirou was a dead man walking.

Taking the hint that if he didn't do something soon he really was a dead man. Eijirou grabbed Katsuki by the waist and pressed up against his ass. Pulling him close as he thrust into him.

He was sure he and Katsuki made the same moan at the feeling. Eijirou grabbed him tighter as he slammed the rest of his dick in.

Warm and tight.

Eijirou felt like he was dead and gone to heaven. Katsuki's ass felt like a holy experience as he started moving.

"Fucking so good, Tsuki!"

Katsuki hummed in agreement. Letting the redhead set the pace for the moment, even when Eijirou's hands kept slipping and soon enough Katsuki was face down ass up on the dirty floor being pounded.

Yet, somehow he didn't seem to mind as he moaned all the louder.

"I can't believe you fucked up my damn kitchen—" he was cut off when Eijirou thrust deep into him. Knowing by now just where to hit to have his boyfriend not complaining.

"Fucking asshole," Katsuki moaned.

"As if you don't like it," Eijirou grinned. "When have I done something you didn't want? I bet you I could have you begging if I wanted to~"

Katsuki ignored him, knowing he was right.

"You messed up my frosting," he grumbled.

"You'll make more."

Eijirou tugged his boyfriend's arms behind his back, making it all the easier to fuck him.

"I'm just saying—it's not like you've ever had to make a dessert that took you hours."

Eijirou rolled his eyes, he knew making more frosting would not take him hours but his boyfriend was dramatic when he wanted to be. Eijirou thought it was a Taurus thing but then again libras were dramatic too, maybe it was just a Bakugou thing.

"I've given you some desserts you loved before," Eijirou said with a wink, then realized he couldn't see him. But his boyfriend didn't get the hint anyway.

"The fuck you have, can't even cook to save your life why would you give me something I liked?!"

"I don't know Kats, I think you like the creampies I give you—"

Katsuki groaned half because Eijirou picked up his pace and half because of the joke.

"I will fucking kill you if you say anything like that again," Katsuki gasped.

Eijirou let go of his arms and leaned over him, his back pressed to his chest and Katsuki whining as he was fucked too well his eyes closed and his mouth parted in gasps with each thrust.

He looked debauched.

Frosting covered him, flour on the floor, while he was being used just how he liked it.

"You're not disagreeing," Eijirou pointed out.

And Katsuki didn't answer.

"So you don't want me to cum in you?" Eijirou asked, knowing the answer.

Katsuki whined.

That was all Eijirou fucking craved. Hearing someone so powerful whine just because he wanted to be filled with his cum was not something he would ever get over. Eijirou leaned down, wrapping his arms around Katsuki as he grabbed the man's throat.

Putting only enough to a bit of pressure to have him moaning louder not hard enough to bruise or affect his breathing.

Katsuki froze under him.

Tightening around Eijirou's cock as he gasped at the feeling, breathless as he came onto the apron he was wearing.

"I love when you cum on my cock," Eijirou whispered.

Fucking into him a few more times before he was coming too, fulling his boyfriend much like he said he would. Fucking his load into his boyfriend's ass.

Eijirou waited a few minutes before he pulled out, taking his time and staring at the frosting that was caked on Katsuki's hips.

Mesmerized, his hand traced his side, down his hip, and back between his cheeks. Smearing the mess on his ass. Taking two fingers and pushing the leaking cum back in.

"Fuck," Katsuki moaned.

Eijirou leaned down and shamelessly licked off his perfect little hole.

"You should clean up," Eijirou muttered. Licking over his hole again, he spread his cheeks. Tasting his own cum mixed with the frosting.

Something he didn't mind all that much when it was in or covering his boyfriend. Eijirou made sure he wasn't at least dripping all the way to the bathroom.

Once he pulled away he helped Katsuki to his feet, ignoring the mess around the best he could.

"When I get out of the shower I want to finish this cake. The kitchen better be fucking cleaned and then maybe you can fuck me again," Katsuki muttered.

Eijirou nodded and kissed him on the nose. "Of course, Tsuki."

Katsuki grumbled the whole way to the shower. Muttering worse than the time his friend Izuku realized they were dating and going over his theories about why he thought they were, and then Shoto who also learned about the news nodded and said something along the lines of: "Knew he wasn't straight."

Eijirou looked back to the kitchen.

He grabbed his shorts and pulled them back on, ignoring the fact he had flour covering them. He did his best to clean everything up, keeping out the things Katsuki would need to remake the buttercream again.

He cleaned the counters, did the dishes, and swept and mopped the floors—getting all the flour and mess off of them. And really the mess was very much worth it.

By the time Katsuki came back out, clean and dressed in a fresh pair of Eijirou's boxers and a towel still wrapped on his head, the kitchen was clean. The only thing left out was the mixer and a few ingredients he needed yet, everything else was put in its place and no longer covered in flour or frosting.

"Out."

Eijirou nodded, kissing him on the cheek one last time before he headed off to get a shower himself. He walked right down the hall and into the bathroom, not wanting to get the flour that was on him everywhere else.

When he got to the bathroom though, his clothes were already set out for him and on the steamed-up mirror written in Katsuki's surprisingly neat handwriting was: "dumbass" and a small heart underneath.

Eijirou smiled.

He quickly got into the shower in perfect timing, the frosting was getting uncomfortably sticky. Not to mention that he was pretty sure he wasn't going to ever be able to look at buttercream frosting the same way again.

Katsuki set the cake on the table.

Fully complete with the added details he spent way too much time on. The frosting was bright yellow much like Denki's hair with mini lightning bolts covering the entire thing. It matched Denki's aesthetic completely.

The squad cheered at the sight.

Eijirou tried not to look at the cake or the blond man who had ignored him the whole night. Still annoyed he had to remake the buttercream and that he didn't get into bed until ten thirty that night.

Katsuki cut even slices of the cake and handed everyone their piece, Denki getting his first since it was his birthday cake after all.

When he handed Eijirou his piece all the redhead could think of was how the vanilla frosting tasted on Katsuki's tongue. How smooth it was when he fucked into him—he looked away blushing as he took the plate.

"Do we even want to know what happened this time?" Hanta asked.

"No," they said in unison.

Denki looked between them.

"Not in front of my cake?!" he groaned. "You two promised after Mina's cake when we walked in on you—"

Katsuki glared at him.

Eijirou knew he was annoyed the time he was getting ready to make Mina's cheetah-themed 2000s vibe cake—at her request… and because of blackmail—when she used her emergency key to walk into their apartment to see Eijirou on his knees and Katsuki coming down his throat.

Hence the rule of Eijirou not being allowed in the kitchen when Katsuki was baking, at least most of the time.

"Shut the fuck up about it already, your cake is fine," Katsuki muttered.

Not arguing with the blond everyone shrugged it off, at least until next time.

And really Eijirou couldn't help it if he took some of the frosting into his mouth, locking eyes with his boyfriend and smirking as he sucked his finger clean. Maybe he would be lucky enough for Katsuki to give him a second dessert when their friends left.

THE END