A vacation at an all-inclusive resort in Cancun...who could turn that down? A librarian named Sunny, that's who. After learning that her best friend, Tiffany, can no longer accompany her on their dream vacation, Sunny is prepared to stay home in her safe little world. Tiff is having none of that and forces Sunny to take the trip as well as promise to have enough fun for the both of them. Capitulating, Sunny boards the plane with nothing more than her beloved naughty books and her vivid imagination as her travel companions. The only redeeming factor is that she will have an entire week to indulge herself - even if only in her fantasies.

Mexico has so much to offer - the sparkling Caribbean Sea, white beaches, and lush green rainforests. And the heat is not confined to the sun. Sultry Latin men with nefarious plans, an ancient civilization, and incredibly sexy identical cowboys give her everything she needs to fuel her daydreams. So why does one face keep creeping into her dreams?

Ever since she witnessed Tiff's older brother spanking his girlfriend, her mind has replayed and rewritten the scene a thousand times. How many times has she imagined taking the place of the girl over his lap, begging her Daddy not to spank her anymore? But how can Trent become not only her lover but her Daddy if he doesn't know she is alive?

Every time Trent has tried to talk to Sunny, she hurries away, but the look in her eyes has his every instinct humming. Learning that she is alone in Mexico, his plan begins to develop. The moment he spies the beautiful, half-naked young woman over-indulging in Jose Cuervo, he knows it's time to bare his heart and, of course, turn her over his knee and spank her bare bottom. She's always been his Little Sunny but it's time to teach her all the ways she could burn.

What will happen when Sunny discovers that while she could easily choreograph a fantasy and wake up before she truly paid a price for her naughtiness, spankings given by a real flesh and blood Daddy on a bare backside really hurt!? Or is Trent just a figment of her imagination and she is still dreaming?