Taboo VI: The Obsession (1988)

This time, the subject is twins. Doreen (the voluptuous Nina Hartley) has an overpowering sexual obsession for a fantasy lover. She feels what he feels, lusts when he lusts and is consumed with desire for him. On the advice of her friend, Taffy (Gina Giannetti), Doreen who is a successful daytime soap star, visits a psychic, Natasha (the sensual Krista Lane). Doreen doesn't believe in psychic mumbo jumbo, but she goes because her marriage to Roger (Scott Irish) is falling apart. During the reading, Natasha unlocks Doreen's innermost secret, the lust she has for her twin brother, Dalton (Joey Silvera). Doreen is stunned with these revelations and realizes she must go to her brother. Arriving at his mountain cabin, Doreen deliberately schemes to break up the relationship between Dalton and his fiance Michelle (played by delectable Brittany Morgan). Natasha arranges a seance with Doreen, Dalton and Michelle. With her psychic powers at their peak, Natasha unleashes a vortex of sexuality that explodes on the screen in scorching intensity, in the classic Taboo tradition.