Tsundere and Sin-namon Boyfriends (Completed)

Chapter 4: Izuku figures it out and they talk.. Sorta

📢 SLIGHT SPOILER ABOUT THE WAR ARC IN MHA CANON FOR THOSE WHO HASN'T READ IT YOU HAVE BEEN WARNED

They didn't know how long the embrace lasted, as one didn't want to let go too fast while the other is still too shocked to even break it.

Izuku has tears beading in his eyes-- because the last time Kacchan initiated something like this was when they had been kids, before the blonde's quirk had manifested and Katsuki didn't disregard him so easily. Izuku wishes very badly that he can read minds, so that he can figure out what Katsuki has running in that mind of his. "K-Kacchan?"

"Shut up. Don't say sh!t." The blonde shifted in his arms, and Izuku vehemently ignored the sensation of Kacchan's pecs pressed against his own, soft yet firm as they are. He had managed to overlook it when they had been grappling each other in the gym, he should be able to do it again. With the proper will-power of course.

Katsuki's hands tensed and relaxed against his back and neck, before the blonde leaned back slightly, just enough for Izuku to see his face and.. Oh-

Katsuki's fair skin, courtesy from having the same genes as his beautiful mother, is red all over the bridge of his nose and accross his cheeks. Red eyes tries valiantly to not meet his green ones, lips pressed down into a cute moue. Kacchan-

Kacchan is embarra$$ed.

A cooing whine bubbled up in Izuku's throat because that might just be the cutest thing he's ever seen. Kacchan tried to... What, rea$$ure him? With a whølesome hug and ended up getting embarra$$ed. Almost shy. Kacchan is the type of person to communicate with his actions but this.. No, Izuku didn't want to overthink things. But.. It's just that Katsuki's behavior towards him lately both elated yet confused him- first the coffee, and now this? It's like Katsuki's trying to tell him something.

Gathering the courage, Izuku tentatively asked. "I'm guessing Kacchan cares about me after all..?"

"I told you to not say sh!t!" The blonde pushed him away roughly, but the way Kacchan's blush darkened and didn't deny the words itself was answer enough.

Izuku wants to count it as progress. He's so happy he could explode. That is, until a memory of an online research he's read years ago hit him like a lightning strike. Izuku gaped, mentally comparing the research towards Katsuki's behavior.

'Kacchan bullies me in a somewhat special way of him trying to toughen me up. Like what aunt Mitsuki does to him.'

'Kacchan can turn his emotions on in an instant. One wrong comment, or even just a look and he goes from zero to one hundred really fast, and often iin a very explosive way.'

'Kacchan can say some mean things but he actually doesn't mean it. He says scary threats all the time because it's his go to response when he doesn't know how to cope with his emotions properly..'

Izuku's eyes widened. Could it be-

'IS KACCHAN A TSUNDERE?'

A few years ago, Izuku would have called bullsh*t on that idea because of... Katsuki's over the top bullying at the time, but that's in the past, and this is the present. Kacchan had redeemed himself. And although old habits d!e hard, Katsuki is clearly trying to be better as both a hero and as a person.

It would make sense, Kacchan's behavior he means. Sometimes saying hurtful things but he also deliberately contradicts himself a second after. Ah but wait, wasn't there one more important thing about Tsundere people-

"Are you sure One for All didn't make you insane in there." Katsuki says suddenly, knocking on the side of Izuku's head. "You're making a weird af face."

Except Deku isn't hearing him.

He remembers now. That tsundere people tend to act in in a very  particular way to only one specific person.

"Deku?" Katsuki glared. "Oi, dipsh!t stop ignoring me."

Very slowly, Izuku's face turned red from the neck until his whøle face is redder than before.

"Deku." Katsuki shook him. "What, are the One for All remnants talking to you again?"

Tsundere people tend to act a particular way to one specific person-

'Kacchan got himself hurt protecting me during the war, chased me down and convinced me to return to UA after I went vigilante. Me, the person he used to bully and supposedly his rival.'

They'd do something as small or as big as a gesture while denying it because they don't want that person to know that they like them. Be it in just a friendly way or.. In a romantic way.

'Kacchan made me coffee that day.' Izuku's eyes widened and shook, remembering the threats that Katsuki said to him that now feels as empty as the air around them. It was so simple, yet he had never felt so... Content. His taste buds satisfied and stomach warm. Izuku ended up savoring it because he thought it was both the first and the last and he wanted to have that feeling for as long as possible. It wasn't as big as what Katsuki did for him, but at the same time it made his heart full.

"G0dd@mnit nerd." Katsuki whispered, the blonde thoroughly convinced that Izuku is talking to the other One for All users in his mind, but the green-haired is looking at him with increasing hope bubbling in his gut. "F*ck, I should leave you here but you need to get that d@mn knee checked."

"Kacchan." Izuku breathed, and it catches Katsuki's attention immediately. "Kacchan."

"You're back already? Well, let's get the f*ck outta here. I don't want people thinking we're friends or anything." Katsuki grumbled, snaking his arm around Izuku's waist again so the other can lean on him. "Come on, Recovery Girl's waiting."

"Kacchan." A tone of desperation laced Izuku's voice, his hands gripping onto the blonde's shirt tight enough for the tendons to pop. "Katsuki."

Katsuki's head turned to him so fast Izuku's almost worried about him getting whiplash. "What did you just-"

It's like the floodgates had opened and all the emotions, and the love and the raw want Izuku had held for the other came pouring out and he couldn't do anything to stop it.

Izuku leaned forward and shut the other up with a passionate k¡ss.

Katsuki froze like a statue against him, likely shocked, but Izuku didn't listen to his rational thoughts that are telling him to stop. It was only when Izuku had bit down on the blonde's lower lip did Katsuki regained himself, grabbing Izuku by his shoulders and pushing him away.

"W-what the f*ck are you doing?!" Katsuki gasps in shock, eyes wider than they normally are and his face flushed a lovely red. His lips are glistening, a dark pink color due to the bite and Izuku feels his grøin stir to life at the way the usually stoic and @sshøle Bakugou Katsuki looked right against him at that moment. "How f*cking dare you!" Katsuki snarls, but even to Izuku it sounds forced and half-hearted.

"I'm going to k¡ss you again Kacchan." Izuku tells him, watching the way the blonde's expression changed indistinguishably. "You don't have to speak... I only need you to be honest and push me away again if you truly don't want me to."

'Don't run away.'

"If you push me away again, we'll.. We'll pretend this never happened."

'Face me head on like you always do.'

When Izuku leaned in again, it was a softer press. He slotted their lips together as gently as possible as if to make up for his abruptness earlier. His eyes fluttering close.

Nothing happened. Katsuki didn't push him away, but he wasn't k¡ssing back either. Izuku refused to be disheartened, so he tilted his head for a new angle and slightly grazed his tongue against the other's lips, silently asking for entrance.

Katsuki still remained stock still, and Izuku felt his stomach drop.

'Was.. Was I wrong to a$$ume that he likes me? Did I make a mistake? Rushed into it? But I-'

At that exact moment, Katsuki's breath against his face steadied, before slowly, the blonde's lips peeled open, letting the slightest bit of tongue peek out to touch against Izuku's. A beat later, Katsuki's head tilted until their faces are slotted more comfortably and he k¡ssed Izuku back.