Eddie is now a high school freshman. Adapting to a larger school, he is still scoping out the bevy of new girls. Although he is getting known as a good boy to know, he meets and befriends a sophmore girl, Holly. She invites him to dinner, where he meets her mother. The mother confides in Eddie that suspecting he has 'experience' she encourages him to teach her daughter about sex.
Incest to beat all incest. Brother and sister have been getting it on between each other for years because they could not find anyone who could satisfy them better than the love they had for each other. The sister had been divorced because her husband wanted a younger girl, so the brother moves in with his sister who had three kids, since he was helping pay some of the bills anyway.