Hot Blooded (1985)

Melissa is a 19-year-old attending college, who gets thrown out of her house by her mother Linda after she's caught "going at it" with the mother's boyfriend Chris. Shacking up with her Uncle Phil, Melissa and her two best friends, Amy and Beth, decide to take over and manage one of Phil's adult video stores as a way to make some money. When Harry and his wife come to get a movie, they are given the back room for themselves. But when Stanley comes alone, Melissa joins him.