Erica Boyer plays an ex-porn star who inherits a posh body building club in San Francisco. To her pleasant surprise a veritable round robin of erotic aerobics takes place behind the club's closed doors. Erica soon realizes the secret to the club's success, sex and plenty of it! Whether it's breathtaking babes taking on swarthy studs on top of her rowing machines, or enticing employees giving new members a little extra bang for their buck, there's never a shortage of sensual shenanigans at this sassy spa. When Erica finally confronts smooth-talking club director John Leslie, the sparks are sure to fly!