You and Katsuki have been friends since birth. Your families knew eachother and your moms always organized playdates between you two when you were little. Currently,Katsuki was 14 and you were 13. You were best friends,ofcourse. His family was over your house. He was laying on your bed,his head burries in your pillow. You two were just talking

“So you’re telling me that you gotta wear a bra?”

He said curious,looking up at you from the bed