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Bakugou was busy preparing dinner when Kirishima materialized behind him. He was so quiet that Bakugou didn’t notice the presence.
That is, until Kirishima pounces on him, wrapping his arms around Bakugou’s waist from behind. His hands work their way under Bakugou’s shirt, walking his fingers over the skin on Bakugou’s abdomen gently. He sits his chin on Bakugou’s shoulder, pressing his lips into Bakugou’s ear.
“Wow, you’re so good with your hands, Bakugou. Maybe you should use them for something other than measuring ingredients.” The whisper completes the trance that Kirishima cast on Bakugou, and the blonde’s cheeks darken with a blush rivalling the chilis he was chopping.
“What the fuck?” Bakugou’s stressed groan goes unanswered as Kirishima untangles himself from Bakugou, waiting for Bakugou to turn around before he smiles and walks away.
Leaving Bakugou to wonder what the hell had gotten into him.
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Bakugou had almost forgotten about what Kirishima had done to him by the next morning. He was in the bathroom brushing his teeth when he felt eyes on him, and a sense of dread washed over him. He turned to see Kirishima leaning against the doorframe, a killer grin painting his features with mischief.
“Wow, Bakugou, no shirt? Trying to make me jealous this early in the morning?” Kirishima winks before licking his lips, sending Bakugou into a panic. He swallows, choking on the toothpaste as Kirishima snickers.
Kirishima walks over to the vanity, pulling out his own toothbrush in order to get ready for the day.
“Don’t worry; I have enough ways to keep your attention.” With Kirishima’s eyes burning into him, Bakugou slams his toothbrush down, unable to take the time to rinse off the dried toothpaste. He kicks his shirt up, pressing it to his face as he rushes out the bathroom to hide the reddening of his face.
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Bakugou thought maybe by being around people, he could avoid Kirishima and whatever the hell was making him act insane.
He was wrong. Very wrong.
As Bakugou took a break from training to pour some cold water over his head, he hears the voice he was trying to hide from.
“Damn Bakugou you look fine as fuck!” Kirishima was standing at the other end of the practice zone, hands cupped around his mouth to help his voice carry. Bakugou already felt his face heating up, and picked up a towel to cover his head. He hoped that it would be enough to drown out whatever everyone was about to start whispering about.
Until he heard more voices reverberating around the practice zone.
“Kirishima, I don’t think he heard you! Say it again!” That one belonged to Todoroki, the fucking traitor. Bakugou was going to melt his face off later.
“Yeah, Kiri, say that shit!” Kaminari decided to chime in. Bakugou already wanted to melt his face off for a picture that he drew of Bakugou and Kirishima getting married.
The dress he drew on Bakugou totally wasn’t his style. He was definitely more of a mermaid dress guy than a princess dress guy.
So he was going down too.
“I SAID DAMN BAKUGOU YOU LOOK FINE AS FUCK!” Kirishima’s voice bounced around the practice zone, sending the rest of the class into various stages of laughter and applause. Bakugou rips the towel from off his head, walking out of the practice zone amidst calls for him to return. But his entire body had heated up past the point where he was able to control himself; he genuinely felt like he was going to kill somebody.
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Bakugou wasn’t able to cool off enough to rejoin the class’ practice session, instead heading straight for his room. He was lying down with his head stuck under a pillow when he heard knocking at his door. Flipping over reluctantly, he got out of bed to answer it. Standing in his doorway was none other than Kirishima, freshly showered and tossling his hair dry.
“Hey sexy-” Bakugou slammed the door in his face, going back to his bed and continuing to lie down. He let Kirishima knock at the door for 2 minutes before rolling back over and answering the door. Kirishima, who had stopped to pull his hair into a bun, grins up at Bakugou as he walks into the room.
“Finally. Hey, Kat.” Kirishima sits on the floor, leaning back to look at Bakugou, who had taken a seat on the edge of the bed.
“Don’t fucking ‘hey Kat’ me, bitch.”
“Why can’t I ‘hey, Kat’ you? Would you prefer Katsuki? Or maybe...something a little different?” Kirishima’s eyes sparkle the way they had been all week as he walks his fingers up Bakugou’s leg. He turns around, poking into the soft skin near his inner thigh.
“What the fuck is up with you?” Bakugou half yells, squirming away from the touching that is making his brain melt at a rapid rate.
“What do you mean?”
“Why do you keep saying shit like that?” Kirishima laughs at the question, laying his head into Bakugou’s lap.
“Mina said I should try flirting with you more. Something about keeping the relationship fresh. So, how did I do?” Bakugou took one look at the round eyes and pointed grin that Kirishima was wearing and it hit him.
Everything that Kirishima had said had been 100% genuine. It wasn’t just lighthearted teasing or some sort of prank.
Kirishima had genuinely been trying to flirt with him.
“Kat?” Kirishima’s confusion came from Bakugou covering his face with his hands in a failed attempt to hide the pink tinge that was coloring his face.
“You really thought that corny ass shit would work?”
“Well, yeah. I meant it. Did it not?”
“Does it look like it worked? It drove me fucking insane, idiot.”
“So what I’m hearing is you liked it.”
“Huh?” Bakugou moved his hands to see Kirishima giggling in his lap.
“You got all blushy and flustered every time I said something. And you never said you wanted me to stop, which we both know you would have said if you genuinely didn’t like it. Bakugou Katsuki, turned into a blushing schoolgirl because of a little flirting.” Kirishima stood, kneeling on the bed and poking at Bakugou’s quickly reddening cheeks.
“I didn’t fucking like it!”
“C’mon Kat, it’s me. You don’t have to pretend.”
“I’m not fucking pretending! You realize how embarrassing that shit is? At least come up with some better lines.”
“Ohhh so you like the flirting; you just want me to get better at it? Well, practice makes perfect.”
“I didn’t fucking say that!” Bakugou pushes Kirishima’s fingers away, watching as the still giggling boy presses his face into Bakugou’s shoulder.
“You can’t even admit you like it! After you asked me to come up with better lines!” Kirishima wheezed, and Bakugou was taken aback.
He did like it. He realized that. He just didn’t realize that it was that easy to see for other people.
“Shut up.”
“That’s your big comeback, Kat?” Bakugou shoves Kirishima off of him, sending him back into a fit of laughter. Bakugou lays back onto the bed, pulling the pillow on top of his face yet again.
“Katsuki. Kat. Su. Ki. Katsukiiiii. Answer me.” Kirishima poked at Bakugou’s sides until giggles came pouring out from under the pillow.
He stopped poking when the pillow flew and hit him in the face.
“Oh, is that what’s happening?” Kirishima’s grin was sinister as he straddles Bakugou, beginning to ruthlessly slap at him with the pillow.
“What th- get off!” Bakugou couldn’t help continuing to laugh as he pulls his arms up to block the hits, though it does little good.
Eventually, the blows lessen until Kirishima drops the pillow back to its original position.
“You like when I flirt with you. Admit it.”
“I’m not fucking saying that.”
“Say. It.”
“Or what?”
“No kiss for you.” Kirishima crosses his arms, a gentle pout settling into his features. It looked unnatural for someone who smiled so much.
“What kind of stupid threat is that?”
“Oh, so you don’t want to kiss me, Katsuki?” Kirishima cocks an eyebrow, and in that moment, Bakugou realized he was caught.
He wanted to kiss Kirishima. Badly. Really badly. So badly that he didn’t understand how he didn’t realize it until after Kirishima said it.
“Ahhh, so you finally noticed?”
“How the fuck did you know?”
“Cuz I know you, Katsuki.” Kirishima’s teasing came with him leaning down, almost brushing his lips against Bakugou’s before they split into a smile instead.
“Shut up and kiss me.” Kirishima covers his mouth before Bakugou can grab the back of his head and force their mouths together.
“Mmm mmm you know the rules.” Kirishima’s muffled demands came from behind his hand and Bakugou audibly groaned, throwing his bed back onto the bed.
“It wasn’t...the worst.”
“Did you like it yes or no Katsuki.”
“Yes! Okay? Just fucking kiss me!” Kirishima obliges, pressing their lips together gently.
Which, of course, wasn’t enough for Bakugou. He deepened the kiss until he was dizzy with lack of oxygen.
“You wanted it that bad?” Bakugou couldn’t stand the teasing, but he was tired of giving in to his embarrassment.
“Yeah the fuck I did. I like you, don’t I?”
“Aw, you’re so cute, Kat.” Kirishima kisses Bakugou’s cheek, nibbling at it with the edges of his teeth.
“I’m not fucking cute, shut up.”
“Not going to happen. Maybe stop getting flustered every time I flirt with you.” Kirishima giggles again as Bakugou begins to blush unconsciously at the mere mention of flirting.
“Shut up.”
“Never. You like when I flirt with you, Katsuki. You get all red n flustered cuz you like it. It’s adorable.” Kirishima presses his forehead against Bakugou’s, brushing his nose against Bakugou’s.
“So what? Damn.”
“Makes me happy. I like this side of you.”
“Just shut up and kiss me again.”