Extreme Sex 4: The Experiment

Extreme Sex 4: The Experiment (1996) is a film directed by Kelly Holland rated 10.0/10.

There's always chemistry when it's Ashlyn Gere! Doctor Horner and his girlfriend/lab assistant Ashlyn believe couples should experiment. In the bedroom and the laboratory. They invite couples to live out their wildest fantasies, monitoring their every twitching move. And if an experiment turns out particularly well, they just might take off a lab coat and join in