Three Daughters (1986)

Starring: Siobhan Hunter, Nina Preta, Annette Heinz, Gloria Leonard, Ashley Moore, Robert Bullock, Rod Retta, Johnny Nineteen, Carol Cross, Candida Royalle
Description: Three sisters are budding sexually. Michelle finds love with her fiance, Jennifer falls for her piano instructor and Heather invites her best friend over to explore lesbian love. All this romance rekindles their parent’s marriage.