Jouir jusqu'au délire (1977)

The girls go off to a villa in the country and invite Charlie Schreiner and Richard Lemieuvre, and also Dominique Aveline (uncredited) who helps them load the car. At dinner Elisabeth Buré gets under the table and goes down on both males and females. After dinner Chantal Virapin does a dance and strip and Elisabeth Buré and Brigitte Lahaie pounce on Dominique Aveline. An orgy ensues.