Three blisteringly hot months, a messed-up bet, and one very off-limits stepsister... Are you ready for Heartbreak Summer ? Cassidy Lynn is a red-headed, bratty and irresistible little firecracker, and I'm the man that's going to ruin her life. Inked, irredeemable and dirty as hell, I'm the guy she should avoid at all costs. Especially since I just made a bet on her virginity. I shouldn't so much as devour her with my eyes, let alone rip off her bikini top the first time we meet. But I can't help myself around Cass. She wakes up something inside me that's primal. All I know is, I never should've shaken hands on the bet that dares me to sleep with her by the end of the summer... but if I lose, my best friend gets a chance with her. If Cassidy finds out, everything will be over - and that's one thing I can't accept. Not when I have so much left to teach my darlin' stepsister... Heartbreak Summer is a standalone, second chance, light and emotional new adult romance from USA Today bestselling author Isabella Starling.