Kirsten is a gorgeous personal trainer who doesn't look like she belongs in a gym. She belongs in a supermodel photoshoot. Or on a porn set. If she had her choice, she'd pick the latter. It's Friday and she's bored, but things get interesting rather quickly when an attractive young woman walks in looking for a new gym and workout advice. Kirsten gives her the quick tour and then shows her the showers, where things heat up and Kirsten decides this juicy young woman needs some training in gym etiquette.