Once upon a time, Mercedes 'Mercy' Hernandez had the most enormous crush on her best friend's older brother, Seb Madison. Now, though, she can't stand the beast. Forget that he's as spine-tinglingly gorgeous as ever. He's a lousy brother and a manipulative bastard, not that she ever thinks about that disastrous one night stand they once had...Still riddled with guilt over the death of his parents, billionaire loner Seb Madison has spent so long emotionally shut off that when beautiful, fiery Mercy bursts into his life again, he doesn't know what's hit him. All he knows is that she confuses him and he doesn't like it. Yet their chemistry hasn't faded and, when hostility turns to attraction, a no-strings affair seems the logical solution. Mercy's taking a much needed break from her family's Argentinian vineyard to study for an MBA and Seb doesn't do relationships. Neither have either the time or inclination for anything other than weekends-only red-hot sex. Or do they...?