Starring Dick Smothers, Jr. as "Penny Nichols," porn directrix, this highly amusing effort from Cash Markman deals with exactly what the title indicates: the chemistry of various adult stars on screen together. And there's some pretty hot - if clearly dated - stuff here, too, especially the Allysin Chaynes/John West and the Ava Vincent/Kurt Lockwood couplings.

Retailing: Funny and sexy - what a deal!