You were a transfem, and Katsuki didnt mind at all, he loved you with his whole heart. He helped you as much as he could.

You were in your room, looking at your figure into the mirror, more then everything at your bare chest, which were flat without your bra. Eyes filled with tears.

"Hun' we're-" he says, entering the room, before falling silent as he notices you, walking over at you and wrapping his arm around your waist.

"no bra, hm?" he asks gently, kissing your temple reassuringly.