No nudity.

A couple is shown having sex with her on top. Her back is shown and his chest is shown, but no nudity.

A couple is shown having sex in a bathroom standing up. They're both naked and her breasts are shown bouncing, but her nipples are hidden by his arm.

Two guys negotiate details for a threesome with a girl.

A girl is raped. We see her panties get ripped off and a guy thrusting on her from behind. No nudity is shown.