An 'instructional' video featuring sexpert Ava Cadell hosting a lesson (Ava does not participate) at Juli Nathan's home for Juli, her boyfriend, and two other couples. We see Ava talking with them, and some couples on the street answering questions about kinks, before each couple make use of various areas - bathroom, laundry room, kitchen, closet, gym. Jonathan Simms is the male half of one of the other couples, although I can't seem to add his credit.
The mood in the clothed part of the lesson is pleasant enough, which sets up your expectations for the rest of the film. Other than a bit of voyeurism, the couples don't sexually mingle, which helps lead to a samey feeling, aside from some fun with props (Nathan and beau having fun with a string of pearls; Simms and gal with a feather duster and clothespins).
The most interesting part of the movie is that the couples all have penetrative intercourse, but there are no money shots - maybe to try to keep the "for couples" idea intact.
