In this your gender is male

Aizawa: right so today my son will be joining us Bakugo: wait what!? Momo: since when did you have a son..? Deku: huh-? Sero: the hell- Aizawa: everyone shut the hell up he's not joining the class he's just staying with it for a bit Looks at the door as you walk in go ahead and tell them your name and age bud Shoto: was about to say something but shuts up