After her divorce, horny mom runs around teasing and tormenting her horny son as they spend the summer drifting down river in a house boat. Here, mom teaches her teenage son all about sex. They eventually meet a father and teenage daughter also drifting down the river and decided to make it a foursome for the rest of the summer.
Teenaged Richie Cunningham is stuck at home with his little sister. As if that wasn't humiliating enough, she overhears him admitting that he got shot down by his date the night before. But just when he's most bummed out, little sister comes to the rescue. (Celeste's score: 10, 9, 9)