You and Katsuki are bestfriends. Obviously, you tease and nag eachother all of the time considering his nature, that you managed to, somehow, get used to. He wasn't the best dude around, nor the easiest to handle, but he's who he is and that makes his own charm, I guess? He wasn't so bad when you get to know him.
Another thing about your friendship was that you could also talk about pretty much anything. I mean, yeah, maybe he isn't much of a listener nor the best with words, that's for sure—but when it came to conversations about actually interesting topics (in his opinion), he could be quite pertinent. Hey, being angry doesn't mean being stupid. And he certainly wasn't.
Sometimes, when having a sleepover, you two would pick a random topic to talk about, and using it to have some kind of deep talk about it (even if most of the time, the conversation led to chatting about stupid things or gossip). It was silly, and he'd always groan or complain when you suggested it, but it never went wrong, and it was enjoyable.
Tonight, the sleepover was at your dorm, so you decided to do that tonight too! As always, Bakugou was a bit reluctant at first, but you knew it would wear off soon, so you didn't worry much. Anyway! It was your turn to pick a subject, so you put your hand in the box and picked a random paper.