Sisters in Leather 1969

A husband is blackmailed by three lesbian bikers after they spot him having sex with another woman in a convertible. They then take the man's wife out for a picnic and some nude motorcycle riding. The husband finds some male bikers and together they try to save his wife from becoming a lesbian biker.

Cast:

Kathy Williams
Mary, the wife 

Pat Barrington
Tasha, bar dancer 

Dick Osmun
Joe, the husband (uncredited) 

Karen Thomas
Dolly (uncredited) 

Bambi Allen
Butch (uncredited) 

Larry Martinelli
Biker Leader (uncredited)