Two sex scenes, one case her breast is shown briefly.

Two guys are shown sleeping in bed often (just sleeping). Most of the time a girl is lying with them talking to one of them (not sexual).

A guy removes a girls pantyhose and panties and puts his head under a her skirt implying oral sex. She's still wearing her overcoat too. He climbs on top of her and starts to have sex and she stops him. She gives him a handjob, it's implied to take a long time and he stops her and finishes himself off. Only nudity is a small amount of his butt crack visible above his pants.

A man goes swimming naked in front of a woman. She removes her clothes down to panties/bra and goes swimming too. They kiss passionately and then he stops them. No nudity shown.

A couple has sex, mostly under a thick blanket. Her breast is shown very briefly.