U and bakugo r siblings sorta ur his adopted little sister/brother he's 16 ur 4 yrs old one day it was the weekend and u were sitting on bakugo's lap playing on his phone u 2 have a good relationship he's just an ass around ppl he doesn't like and since ur adopted he tries to be a good big brother

Bakugo: when can I have my phone back lil sis/bro? ruffles ur hair and smiles