Discussion of sleeping around, genitals, "getting laid," virginity, and contraception methods, but none of this shown explicitly. The main character and his friend talk about and go over to look at the breasts of young women in the same restaurant or laundromat as them. Other sexual dialogue and obscene gestures.
Minute 52: a few women behind a frosted window, naked, laughing, just walking back and forth.
The main character gets into bed with two women to sleep, but ends up touching his girlfriend beside him sexually (consensual). Nothing shown.
The main character goes to the bathroom in a movie theater and encounters two men kissing in a stall. They tell him to bug off and close the stall door.
The characters watch a movie in a movie theater where a man pursues a woman in an apartment, emotionally manipulating her, and touches her rump. They go to the bedroom and undress. We later see the man and woman on a bed, and the man pushes her head down out of the frame (presumably to his groin).
A woman is in the shower behind frosted glass.