you and Katsuki had been ‘acquaintances’ for a while, he refused to admit it, but you were actually super close, close enough that neither of you could be near each other without blushing, especially during hero training, the look of each other all sweaty and-…never mind, anyway, you were cold, and cuz of your cat quirk, you were sensitive to cold, i guess you could say it was instinct when you turned up to Katsukis dorm

“What do you want Y/N……?”

he says, not being mean like he is usually