Josh and his gorgeous young fiancée, Hope, are both determined to save themselves until marriage. But with their passion running hot, each knows that if either of them caves to their desires then the other will quickly and eagerly follow.

His stepsister, Tara, has made it clear that she thinks he's an idiot and that his prudish abstinence is a tragic waste of a sexy young woman like Hope. One of her favorite games is to torture him by describing in graphic detail all the nasty things she'd do to his girlfriend in his place...

When Josh wakes up disoriented and in the wrong room, he's shocked to find that he and Tara have switched bodies. Guessing what his scheming stepsister is up to, he races to protect his fiancée...

But the only way he can stop Tara from seducing Hope is to offer her something his stepsister wants even more–himself in her body!