Confessions Of A Young American Housewife (1974)

Carol (Rebecca Brooke), Anne, Eddie and Pete (Eric Edwards) are a swinging suburban quartet. Carol is married to Eddie and Anne to Pete, but that doesn't stop them from swapping partners or initiating hot foursome sex at the drop of their panties. Enter Jennifer Robinson (Jennifer Welles) - Carol's buttoned up mother, in town for a visit. Sporting a voluptuous body and dripping sensuous allure, Jennifer makes an immediate impression upon Pete, Anne and Eddie, who will stop at nothing to have their way with her - individually or in group session. Once Jennifer comes to terms with her daughter's highly sexual lifestyle and lets go of her own inhibitions - look out! - no one will be safe from her erotic charms. Soon it becomes clear that mother and daughter have long-standing issues and an unspoken attraction between one another, which manifest themselves in the most shocking and taboo way.