Tracy in Heaven (1985)

Lustful Tracy (Gina Valentino) dies, but then seduces Saint Thomas (Nick Niter) to get a second chance on Earth and make things right. She decides to change her sinful ways by getting married to Ron (Tom Byron) but her incestuous mother and brother Danny (Marc Wallice) still want to continue their sexual relationship with her. She starts giving into lust once again even though it's a sure fire road to Hell and her judgmental prudish cousin Monica (Tracy Lords), who turns out to have a few secrets of her own as she ends up in a threesome (with Nina Hartley and John Leslie) at one point, helps her get there when she spikes her drink sending her and her guests into lust overload during a party.