I Want You! (1970)

A housewife with a not so happy sexual life goes to a psychiatrist and explains in details about her sexual fantasies.

Beneath the Valley of the Ultra-Vixens (1979)

The movie deals with the bedroom hijinx of small-town America -- in this case the fictitious community of Rio Dio, Texas.

Raucous and rude satire is plotless and more fixated on the director's personal obsessions than on any kind of message; believe it or not, film critic Roger Ebert co-wrote the script to this mess.