Les besoins de la chair (1984)

Dominique Saint. Claire appears to be married to Jacky Arnal. After making love she goes for a walk and meets Christophe in the woods repairing his bike. He gives her a lift on his handlebars back to a large house, where previously we had seen an unidentifed brunette, playing Aunt Annie, giving head to an unidentified young man in a laundry room, who plays Jacques. Dominique and Christophe have sex in the garage and then go inside, where a blonde is cavorting in front of Marie-Christine Chireix, Aunt Annie, Jean-Pierre Armand and an unidentified younger male. The assembled cast have sex in various rooms of the house in various combinations, though Marie-Christine joins in only near the end. Meanwhile Jacky Arnal is wondering where his wife is and goes to look for her. by this time she has left the orgy. He finds her walking home, drives her back, and they have sex again.