Peaches is almost 20 but her divorced mother forces Peaches' boyfriend Bobby to leave when she hears them having sex. Suffering a cramp from the sudden stop, Bobby accidentally tries leaving through the mother's bedroom and hides behind a curtain when she gets back. She then catches him peeping on her and - under kitchen knife point - forces him to strip to see what it feels like to be peeped upon. Once he's nude like her, Bobby's cramp worsens. The mother decides to take advantage and fix it for him. Peaches, who thinks her mother is prude, looks for sexual advise from her stepfather who tells her to just ask around and to never be a tease. His scantily clad secretary overhears this and seduces him as soon as Peaches leaves despite his threat of sexual harassment charge. Peaches then hitchhikes with a trucker to her step uncle. While peaches is in the bathroom of their shared motel room, the motel's prostitute offers her services to the trucker. Peaches joins to watch and learn. While Peaches leaves her uncle's house when his family engages in incest, Peaches' mother and stepfather travel after her. The mother locks the stepfather in the bathroom and has sex with their motel's African American fitness instructor. The stepfather eventually breaks free and replaces the instructor. While Peaches is seduced by a man who initially pretends to be a "grandma", Peaches' mother and stepfather seek information by having sex with the uncle and his lover correspondingly. The lover eventually breaks in and reveals Peaches first wanted to have sex with "The Master" of a sex club in Chinatown, and then with the lover herself who also brought Bobby along for a threesome. Peaches then wakes up to realize it was all a dream.
[when her daughter's boyfriend Bobby has a cramp after being forced to strip for peeping on her mother]
Well, well, no wonder you're in so much pain. You have "lover's nuts", Bobby.
Oh, yeah, these balls are definitely engorged with fluid. I can make you feel better. Why should I? What's in it for me? You've been a bad boy. But, ah, maybe there is something nice you can do for Mrs. Goldblum.
[gives him a fellatio]