Once a mere lab assistant, Erin Shay is thrilled over her new promotion. The curvaceous, brainy, straitlaced beauty has been placed in charge of an important new research project: testing a serum specially designed to substantially prolong a couple's lovemaking. With her research partners, Jay and Laura, off on their honeymoon, Erin's been left alone in the lab . . . with her hard-bodied new assistant, Kale Alexander, a sexy stud who has "playboy" written all over him.

Erin's never even had a one-night stand—but the project's success depends upon her playing the wild, wanton bad girl with Kale. Since she's already learned the perils of leaving herself open to heartbreak, this time she'll be the one calling the shots. Her bad-boy partner is going to know from the get-go that this will be a brief sex-only affair—torrid, steamy love in the interests of science . . . with absolutely no strings attached. But when the loving is this deliciously hot, who in her right mind wouldn't want to prolong it?