A woman climbs onto a stage where a rock band is playing. She takes her top off, showing her breasts.
Several topless women are seen at a pool party, most of them at a distance. One girl says her boyfriend wants her to go skinny-dipping. A girl in the pool is completely naked, but the water mostly covers her.
A guy is in bed with a girl having sex. Nothing is visible until she gets up and walks away, briefly showing her breasts, then her ass. Later, when he attacks her, you see his butt and and a very brief frontal shot of him.
The male and female leads are skinny dipping in a mountain pool. Nothing is visible. They're seen at a distance at first. Later, they're lying naked on the rocks. Jill Schoelen's butt is seen from the side.
The manager wakes the band up in a hotel room one morning scene. One of the guys is sleeping naked and the manager slaps him on the bare butt, lasts about 2 seconds.