Sexsations (1984)

In their electronic laboratory, two high-tech researchers have developed a sex-fantasy machine that transports their minds and bodies into the most beautiful and erotic porn stars of today, including Annette Haven, John Leslie, and Paul Thomas. The porn stars lustfully act out the erotic fantasies of these innocent scientists. Passion and desire soon diminish the scientists' abilities to control themselves as they revel in voluptuous, flesh-filled orgies.