Billy Cole has always been the best salesman on the lot—and he never lets anyone forget it.

So when his coworker Jake challenges him to prove that selling cars is just as easy for anyone, Billy takes the bet.

The terms are simple: spend thirty days in a woman's body and still finish as the dealership's top seller. Win, and Billy gets Jake's beautifully restored Camaro. Lose, and Jake gets one night with the new version of him—on Jake's terms.

Billy expects the transformation to be an inconvenience.

He is very, very wrong.

Now living as Billi Hale—a petite blonde with curves, heels, and an entirely different way of being seen—she discovers that the same confidence that made Billy unbeatable doesn't always work anymore. Customers treat her differently. Men stare. Women read her differently. Even getting dressed for work becomes a lesson she never expected to need.

Fortunately, her friend Liz is more than happy to help Billi explore everything her borrowed body can do.

Then there's Jake.

The man Billi has spent years competing against suddenly looks different from this side of the bet. What begins as teasing turns into attraction, and attraction becomes something much harder to dismiss. Soon, winning the Camaro isn't the only thing keeping Billi awake at night.

Because thirty days will eventually run out.

And when they do, Billi will have to decide whether this was really just a bet… or the beginning of a life she never expected to want.