#aeroideas

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mitsuki: what you said to izuku in the hospital.. was basically a proposal, wasn't it? its rare to see you so sappy.

katsuki: ? proposal for what

mitsuki: ..marriage?

katsuki:

katsuki, only just remembering that the concept of romance and marriage exists:

katsuki, slowly coming to the realization that his feelings towards izuku are not only of rivalry: oh

———

its a bit awkward at first. even saying "thank you" makes him cringe. for a while, "okay" and "cool" would be the only two non-negative words he could get out of his mouth without tweaking out.

then, he starts saying words like "thanks" and occasionally gives affirming words like "great work" "good job" "nice". everyone finds them a bit off-putting coming out of his mouth but they still accept it happily.

then he gets comfortable. too comfortable. one time izuku passes him the salt and katsuki responds "thanks, love you" without thinking. everyone freezes.

"what.. did you say?" hagakure gapes. she looks between izuku and katsuki, taken aback. "since when did you two start dating?!"

"huh?!" katsuki exclaims, face red.

"you said 'i love you' to midoriya just now!" denki laughs out. izuku is at the corner, still unable to say anything, his equally red face covered by his hands.

katsuki furrows his eyebrows in confusion. "you guys say that to each other every single time over the smallest shit. 'm just following your leads."

"kacchan, that's... " izuku begins to mumble but stops himself. being this verbally affectionate is a huge step for kacchan. it wouldn't be good of izuku to stop him now just because he's flustered. izuku inhales deeply. "just.. be cautious of who you say that to?"

mina laughs, "not me! keep it up, kats!"

izuku blinks. "huh?"

"totally not against hearing bakugou say he loves us," eijirou joins in.

izuku stutters, "wait—"

and quickly regrets his words when katsuki starts saying "love you" to everyone but him.

katsuki makes sure not to say it to izuku. i mean, it sounded like izuku was the only one on the fence about it, so.

(izuku is always extra giddy and active during the summer bc of this)

as soon as it hits 12am, he frowns at being woken up by texts from many of his friends wishing him happy birthday.

in the morning, his parents video call him to show the embarrassing childhood pictures they've kept. "congrats brat, you're old. let's have a proper celebration during the weekend," mitsuki grins. katsuki flips her off before ending the call.

walking through the halls, he hears "happy birthday, senpai!" "happy birthday, bakugou!" every few seconds. he merely grunts in response.

in the afternoon, he's stopped by all might, who asks to eat with him. they spend their lunch talking about katsuki's progress and well-being. "i'm very proud of you, bakugou-shounen. i wish you a wonderful birthday," all might utters softly. katsuki nods and excuses himself first.

he's the first to stand up when class ends, about to leave when he suddenly feels someone ruffle his hair. "happy birthday, problem child," aizawa sighs. "take better care of yourself, huh?"

when he reaches the dorms, he's surprised by confetti and cheers from class 2A, 2B, some students from shiketsu, and some of his alumni. they bring out a big cake and sing really loudly on purpose to embarrass him. everyone comes up to him and thanks him for all he's done and how much they've inspired him. katsuki leaves barely an hour into the party.

he rushes to his room and locks the door, ignoring denki's complaints of him being a 'party pooper'. he turns around and jumps at seeing izuku sitting by his bed with a present.

"oh," izuku blinks in surprise. "hi! i didn't expect you to be up here so early."

"izuku," katsuki jolts. "what the hell are you doing here? weren't you just downstairs?"

"well, i wanted to give you my gift personally," izuku laughs, "and your room seemed like my only chance of finding you alone." he walks up to katsuki, gives him the box, and envelops him into a tight hug. "happy birthday, kacchan. we've been through a lot together, haven't we?"

katsuki pauses before hugging back just as tightly, his vision clouding. "a bit overwhelming," he mumbles.

both of them know immediately what he's referring to: the genuine attention, affection, and admiration he's getting today. in the past, the wishes he'd get would be along the lines of 'you're going to grow into someone with the strongest quirk,' only ever noticing his capabilities and future potential, but never him.

this was his first birthday after the war, and also one of the first birthdays in a while where he's around people who truly care about him.

---

izuku, pulling away: GAHH!! im so sorry, kacchan! you were just too gorgeous and beautiful in the moonlight, i couldn't take it— s-sorry, ignore that. i need to go wipe my nose.

katsuki, pulling him back in: nope. no you dont.

izuku, looking down: ... why are you hard again?

katsuki, also looking down: so are you?

and katsuki is not even phased bc he's seen izuku go on a cursing spree multiple times (and also often ends up on the receiving end of it). he might even go as far as to call izuku the bigger curser. you really think someone who grew up being around katsuki for most of his life wouldn't at least develop a habit of using foul language? inko probably scolded a younger izuku a lot for repeating all the bs katsuki said, but he's now in highschool and living in dorms around other teenagers. those gaming nights are sure to be intense.

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katsuki: DAMN IT, izuku. you cheater.

izuku: piss off! you always get like this when i beat you at a game.

katsuki: i only get like this because i saw you cheat just now. REMATCH.

izuku: go fuck yourself. sore loser.

katsuki: what did you just call me???

izuku: loser. i called you a LOSER. FUCKING LOSER WHO FUCKING LOST

katsuki: SLEEP WITH ONE EYE OPEN

izuku: SHITHEAD

katsuki: FREAK

izuku: FUCK FACE

katsuki: IDIOT

denki: whaaaat the hell am i witnessing right now

he quickly gets frustrated when said sidekick is completely clueless in following izuku's directions. even the most simplest tasks like "make porridge that's this specific temperature so its still hot but not too hot that kacchan will struggle to eat it while sick" or "add three pinches of cinnamon powder to boiling peppermint tea and mix it three times with the long metal spoon kacchan keeps in the right kitchen drawer" have the person dazed.

izuku gets very confused and upset at this, especially knowing kacchan is probably struggling right now and unable to get proper rest. kacchan's nightmares also tend to get worse when he's sick. how odd it is that the things about kacchan that seem common sense to izuku apparently aren't common sense to other people.

"look," izuku sighs into the phone, obviously annoyed. "just.. it's fine. i'll take care of it." to which the person on the other end could only squeak out a shaky okay, thanks, sorry! before ending the call.

what was supposed to be a two week mission somehow wrapped up the following day thanks to deku's focus and resolve. before anyone could ask deku more details about the mission, he's already flying home to take proper care of his kacchan.