At a friend's lavish wedding, Harley McLain and her twin sister, Charity, meet sexy stock-car driver Cooper Brickman. The more reserved Harley is immediately smitten--until he hits on her twin. But Harley has had enough of being the "nice" girl, and after trading dresses with Charity, she seduces Cooper for a night of wild sex. What was supposed to be a one-night fling gets complicated when Cooper needs a nanny to look after his kid sister--and is convinced sweet, dependable Harley would be perfect for the job. She can't resist the money--or Cooper's hot bod. But when her deception is revealed, will it destroy her dependable image--or will he finally realize how sexy sweet can be?