The "teenage girl" actress was in fact 30 years old. Frequent but only mild nudity in the movie - breasts and butts of both males and females. No genitals shown.

Lots of nudity, girl's full front and rear, and a boy's rear.

A teenage boy asks his teenage sister if she's a virgin. She doesn't answer. He says he is.

A teenage boy and girl have sex. His back and butt are seen. Only her face and legs are seen, legs straddling the boy. He's thrusting. She's bored.

A teenage girl walks around in only panties. Her breasts are briefly visible.

A teenage girl removes her clothes and stands naked for a while, then walks around. Her breasts, pubic hair, and butt are clearly visible. The old man rubs oil all over her naked body. Close shots of her breasts and butt are shown while he's rubbing them.

A teenage girl takes a shower in front of a man. Her breasts are very briefly visible.

A teenage girl walks naked into a room with the old man, her butt is visible. He throws her on the bed and her breasts and pubic hair is visible.

A teenage girl removes her robe in front of the old man. Her breasts are clearly visible, she sits on his lap straddling him, and her butt is clearly visible.