Girls Without Men (1975)

aka's: Madchen Ohne Manner/Mädchen Ohne Männer/Girls Who Play Alone

Rita (Rita Waldenberg), Elsa (Uschi Karnat) and Ursula (Ursula Maria Schaefer) share a room in an all girls boarding school located in a beautiful villa. Their favorite and seemingly only class is sexual education taught by Fraulein Steif (Martina Domingo). They gladly accept homework and even do some research of their own, as the local baker (Roman Huber), photographer (Eric Falk), greengrocer and several inanimate objects (Mr. Cucumber & Electric Toothbrush) soon find out. And when they aren't around, the girls still have each other.