Requiem for a Vampire (1971)

Written and directed by French visionary Jean Rollin, Requiem for a Vampire (1971) follows virgin schoolgirls Marie (Marie-Pierre Castel) and Michelle (Mireille Dargent) as they stumble upon an old house in the cemetery and decide to go inside for some Sapphic canoodling. But, far from empty, the house is occupied by a vampire and his harem of chained naked women. The vampire takes the girls prisoner and decides to turn them into the undead, but before he can initiate them both, his servant Frederic (Philippe Gasté) deflowers Marie. What follows is a hallucinatory sequence of torture and a shootout in a mausoleum. Both girls get naked throughout the movie, and that will give you plenty of opportunities to pound your stake.