A woman undresses. There is a shot close up of breasts/nipples. Brief full frontal. (Personal opinion deleted.)

A man stands in front of a mirror, his front and back side are fully seen.

While a man and woman are making out, she grabs his hand and puts it on her breasts, and later on her crotch.

She puts her hand on his crotch. This all happens while they're still clothed.

A man takes off his pants. We see his buttocks and genitals.

A woman removes her clothes. We see her breasts.

A couple have sex. Nothing is seen, since they're still clothed.