Stiff Magnolias(1990)

High school is a crazy time for every one, and especially for horny guys and gals who have girls and guys close to their own age. Such siblings bring home friends a little bit older or a little bit younger, but who are nonetheless fair game for a little on-the-sly merrymaking. That's the theme here as the unlikely high schoolers named in the credits take on their guys and girls' friends in rounds of rollicking, kinky fun