Three French Hotties(1977)

Original title: Suprêmes jouissances

Martine, Mimi and Doris have had enough of providing for their slacker boyfriends. They decide to rent a place of their own, as well as a manservant. Soon, their newfound decadent lifestyles causes them to lose their respective jobs, and the manservant flees because of sexual harassment. Therefore the girls decide to start a private brothel.