Tommy moves to a new school at the beginning of his junior year and he immediately gets a date with Angie, one of the cutest girls in the school. And thus he "falls in lust" as does Angie and what follows is totally erotic.
Karen is not only a high school teacher but she's also a mother of two. That makes her doubly sexy to Tom and then he discovers a naughty little secret that he's able to exploit in getting to Karen.
Tom asked Debbie out on a date when they were in high school. She was too shy and turned him down. He dreamed about her for years after that and several years later, Tom met Debbie again and this time things were slightly different.