Everyone in 1A is Mineta level pervert.

They are fit hormonal teenagers, so they keep thinking about lewd things, spying on each other and groping whenever there is a chance.

Izuku makes notes no how quirks could be used in bed.

Katsuki's screams "Fuck you" instead of "Die"

Shouto shows his poor understanding of sex.

Momo creates secret cameras.

Tsu has periods when her biology kicks in and she's like an animal.

Ochako likes sex because unlike most pleasures in life it is free.

Mina and Ejirou want to try it with everyone.

Tooru does things in front of everyone.

Dark Shadow spills all of Fumikage's fantasies.

Mezou and Kyouka use their own quirks for spying.

Mineta may not have been expelled, but he was stripped of his uniqueness.

Their homeroom teacher is Midnight and she is delighted. Class 1B is deeply concerned.