When They Were Bad — Donna Kauffman

For Cameron James IV, a vacation at Intimacies is his chance to find his inner wild man, if he has one. The new, private club is tucked away on its own island in the Caribbean, where anything goes. In real life, Allison Walker is a computer nerd trying to make her company one of the most successful firms in Silicon Valley. But at Intimacies, she's in over her head--until she meets Cam. And though Cam is desperate to shuck his Mr. Nice Guy image with a wanton and willing woman, it's the nice girl he's just met who's about to bring out the wicked in him...