We see a couple heavily make out.
In a hotel room, a man is thrusting from behind as she leans against the wall moaning. Only nudity includes her bare breast.
A boy is taking a bath and we see his butt as he dives under the water.
We see married couple having sex. Her bare buttocks are seen as she is on top of a man thrusting.
Brief nudity of a single woman (breast and butt) as she walks away. This post-coital scene with married man implies sex. In fact, they carry on an extramarital affair through much of the film.
We hear a woman moaning as she has sex. Another woman moans and we see a man go under the covers (implied cunnilingus).