A bunch of hippies get high and have an orgy

Soft sex film which aims to "scientifically" examine human sexuality under the various signs of the zodiac.

A professor in a sex-education class gives his students a lecture on sexual practices, which are then demonstrated on screen.

Debbie and Fran are roommates. Bill has sex with them and another girl to help out his buddy Wayne who has dates with 3 girls. Meanwhile Debbie has...