Sean Michaels runs an exercise studio where the ladies are encouraged to use sex to firm up those muscles and burn off those calories. What should have been burned was the script, which uses a premise that was old before Ron Jeremy first got laid. Sean's partners-in-crime, Tony Montana and Jake Steed, also show the ladies that rear end porking will evidently firm you up even more. Why this is, I don't know. In any event, there is a fair amount of backside boffing and fair is also the word that applies to the quality of the sex scenes. No muscle or story development. Typical of today's market!