Gina is a bored housewife who wishes she could join in the fun and games she sees at her health club. Her wishes come true with Annie, her exercise instructor, in a steamy love scene set in a sizzling sauna. Soon Ginas really swinging - and we dont mean gymnastics - with Annie, superstuds J.B. and Mark, then for a climax, in a ten-person session of aerobic erotics thatll leave you panting for breath.