Near the beginning of the film, a man and woman have sex in a bathroom. There is no nudity seen. The scene cuts away several times before it is complete.

A man and woman have sex on the beach. You see the man's naked behind.

A man and woman have sex in a cabin. We see them through a window. Again, you only see the man's naked behind.

Two girls kiss before engaging in a threesome with a man. Nudity is seen throughout. (breasts and butt)

Immediately afterward, we cut to a scene of a different man and woman having sex. You see nudity throughout that, as well, including breasts, butt, and full-frontal male nudity.