Flip Chicks(1973)

A trio of roommates who have fallen desperately behind on their rent. So what are a trio of hippie-dippie love birds supposed to do to raise a little fast cash? How about make their own porno movie, of course! The three would-be pornstars enlist the aid of porno legend Georgina Spelvin to get their project off the ground, and the action just picks up from there.