Risky Business (1983)

Meet Joel Goodsen, an industrious college-bound seventeen-year-old, a responsible and trustworthy son ... Meet Lana, young, hot, exquisite and street-smart. Joel's (Tom Cruise) two preoccupations in life are: getting into college and having sex--which until now has been just a fantasy. But Joel's parents are going on vacation and leaving him in charge of the house. Now, what Lana (Rebecca De Mornay) is going to teach Joel about sex and the free enterprise system in this contemporary coming-of-age tale is every parent's nightmare and a very Risky Business.