The elite Martinis & Bikinis Club challenges you to risk it all. But once you pick a dare, there's no backing out.

Katie Winfield is pretty, privileged -- and a complete disaster when it comes to the male species. Recently she accidentally-on-purpose had sex with her sister's soon-to-be ex-boyfriend, Liam. In a closet. At a Ladies' League function, no less!

Determined to take charge of her romantic life, Katie accepts an invitation to join M&B -- and draws a very naughty dare. Choosing Liam as her willing, if unwitting, accomplice is easy, since she's still totally hot for him and the feeling is mutual. So why share her motives for their steamy sexcapades? Problem is, Katie's not the only one with a shocking secret life...