After a relationship gone bad, Hilary Matthews felt unsure about where she belonged or what to do with her life. Cue Zach Collins, a love ‘em and leave ‘em, no strings attached type of guy. The perfect distraction for her wounded heart. Just one problem. Zach isn’t some random stranger. He’s her brother’s best friend, and more than that, he’s practically family. And to complicate matters, just when things start to heat up between them, she learns there’s more to Zach than he let on. Zach’s job as assistant to an A-list actor allows him the luxury of women, travel, freedom and fun. But things changed the moment Hilary made her move, completely altering his world. Hilary is his fantasy come to life, his dream woman in the flesh…and his best friend’s little sister. Stepping over the line with her would not only ruin his friendship, but possibly alienate him from the only family he’s ever known. The pressure mounts as truths are exposed. Embroiled in betrayal, lies, guilt, and heartache, Hilary and Zach must decide if the biggest emotion of all is worth the turmoil. With so much at stake, the repercussions from a promise broken would cause the battle of their lives.