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Kirishima loves to leave notes for Bakugo, no matter how small or the location.
A “ K ♡’s B” left somewhere on a classroom chalkboard. A messily scrawled drawing of Katsuki’s frowning face on a small sticky note left on his desk.
An “I ♡ You” left on his closet door so it would be the first thing he saw in the morning.
On Katsuki’s lunch container filled with food he made for them both, “Thanks for lunch!! Love you a bunch!!”
Katsuki has saved them all, has a special box for them in his desk drawer that Eijiro doesn’t even know about. His favorites are the ones he finds on his homework and textbooks. The novel or manga that he’s currently reading.
“You’re the smartest and ily. Thanks for the tutoring :)”
“Hi handsome!! This book looks so interesting. Maybe you can tell me about it later ;)”
“Ooo cool pictures :) Can I borrow this one next? ♡”
“What do you mean? I’m not cheating off your homework :O”
“Hi baby! I miss you. Come back from the bathroom already and kiss me :(“
“Katsuki!! Let's get dinner out today! Also, I love you lots :)”
The notes are never mentioned between them, always just something Katsuki finds. Something that makes his heart flutter, his cheeks heat.
One day, he’s taken aback by a folded paper that's left right on his bed. Eijiro was supposed to stay the night, so the single sheet of paper in his place made him nervous.
He swallowed his stupid nerves down and opened the note right away.
Right on the top was his name, “Katsuki :)”. He grinned when he saw a page full of Eijiro’s messy scrawl of handwriting.
Dear Katsuki,
Hi handsome! I felt like writing you a letter today. You probably think I'm taking notes or something in class, but really I'm writing this just for you.
I can't stop looking at you. Do you know how gorgeous you look? Just sitting there, writing your notes with that little cute wrinkle on your forehead that I love to kiss? I love that you're like that. I love how smart you are. How dedicated you are. You're my most favorite person in the whole world ♡
I can't believe I get to call you my boyfriend. I can't believe I get to kiss you whenever I want. Well. Not whenever cause if I could? Right now I'd be kissing you all over. But I love kissing you. I love hugging you. I love you.
I love when you fall asleep on me. You always snore so loud and cute. But, those days where you're really tired? You're so quiet. So I get to watch you just a little before I fall asleep. And I've never seen anything so beautiful. When your face is relaxed and you got a little drool on your mouth. How your hair is so soft and I just get to play with it as long as I can before I'm drooling too?
But, I also love when you're awake (obviously lol) and you're on the battlefield, flying in the air with fire behind you and that wild look in your eye. That determination in your face. You're gorgeous. I can't believe that you're all mine. All that strength. All that determination. All that passion. I get to kiss all that? I get to love all that?
I am so in love with you, Bakugo Katsuki.
-Eiji ♡
Katsuki doesn't even notice the tears streaming down his face until he sees one drip on the page, smearing the blue ink slightly.
He sniffs, laughing at how ridiculously in love he is with his stupid sappy boyfriend.
Katsuki decides to pay the favor back, knowing his boyfriend would get a kick out of it. So, instead of taking notes today in Mic’s class, he wrote Eijiro a letter.
Dear Eijiro,
I miss you right now. Even though you’re right there across from me, not fucking paying attention in class like you should be. But, hey. Who am I to talk? I just can’t help it, Ei. I can’t help but look at you across the room. You’ve always caught my attention with that stupid hair of yours. Coming up to me for the first time and asking if I wanted to spar like an idiot. You don't know how much my heart skipped a beat. But I'm telling you now, because you deserve to hear it.
And maybe I'm being a sappy bastard but hell, look at who I'm dating? The sappiest person on the planet. But I love that you're like that. I love how much you love. I love how strong you are. I love that you love me. I don't know how you love me, Eiji.
That's what you taught me, though. You're always going on and on about the shit I teach you (even though half of the time it's in your boulder brain already) but you taught me how to love, Eijiro. You taught me what kisses feel like. What being cared for feels like. About being so goddamn in love that it hurts.
Honestly, fuck anyone who says we're too young to feel this shit. I'm in love with you, Eijiro.
You're so strong, and there's not even a question of how. You're just strong. Strong enough that you deal with all my shit, that you waited for me. If I was in your shoes? If I had to wait for me to get my shit together?
I don't know how you did it, Ei. I'm not worth waiting for. But you did. And you make me feel worth it. I love you so fucking goddamn much.
Thank you for loving me. I promise I'll try my hardest to love you like you deserve.
-Katsuki
Katsuki closes up the letter, folding it into a square and writes ‘ Eiji ’ on top.
All day, Katsuki felt like a hole was burning into his pocket. He didn't want to risk giving the note to Eijiro during school and having anyone else seeing it, so he waited till the day ended. And now here he was, standing in the open door of Eijiro’s dorm. He knew his boyfriend would be out a the gym with Denki and Sero, so now was the perfect time.
He leaves the note right on Eijiro’s desk, next to the change of pajamas he had left out. He knew Eijiro would see it then.
Like a coward, Katsuki left to his room, deciding to get ahead on the work he slacked off on in Mic’s class that was due at the end of the week.
He was pretty much done when he heard his door click open. He knew it was Eijiro, but he was in the zone. That was the reason why he didn't look up at him. So the reason. Not because his heart was beating out of his chest.
He saved his document, adjusting the sleeves of the hoodie he was borrowing, and glanced up at Eijiro for just a second.
But he didn't have time to process anything as his laptop was yanked out of his hands, as lips descended on his, as Eijiro pushed him down gently.
He lost himself in their kiss, his hands coming to wrap around Eijiro’s back, his legs rising to cage him in.
They kept kissing, Katsuki’s skin feeling on fire, lips brushing over his gently. Hands caressing him softly. He needed to catch his breath, but he didn't think he could ever. Not with Eijiro kissing him like that. Not with Eijiro loving him like he does.
Eijiro pulls apart from him for a second, and his eyes are filled with small tears.
“Yeah?” He asked, the only thing his blissed out brain could supply.
“Katsuki.” Eijiro whispered, sniffing. He smiled at him, so radiant. His favorite sight on every earth.“I love you so much, Tsuki.” Tears started falling down his cheeks at his confession, and Katsuki reached to wipe them away.
He smiled, “Hey, don't cry about it, dummy.”
“I can't help it.”
He gave Eijiro a kiss. Kiss after kiss.
“I love you more, Ei.”
Eijiro shook his head, coming back for another kiss.
Fuck, if letters made Eijiro this happy? He'd rearrange the constellations, the sky, the galaxy. Just so he could spell out how much he loved Eijiro in stars.