Marry me. Two words Kalli Montgomery never expected to say out loud to Xavier Cruz, even though she's been in love with the sexy, single father for as long as she can remember. Unfortunately, she hasn't just been friend-zoned for the past ten years. No, even worse, he's treated her like a little sister, no matter how hard she tried to prove she could be so much more. When she agrees to spend the summer as the caregiver for his daughter, Lily, she knows it's her last chance to finally make him take notice. As unexpected circumstances threaten to disrupt his home life, Xavier's desperate to keep his family together. He'll do whatever it takes, even if it means marrying a woman he doesn't love. For Xavier and Lily, Kalli will do just about anything, even at the risk of getting her heart broken in the process. Little does she know, sometimes love isn't quite as unrequited as one may think. Xavier sees her-he always has. And the vow he made all those years ago never to go there with his best friend's little sister is wavering, and it's wavering fast. When they come up with a plan that leads to wedding bells, it's a no brainer. This marriage of convenience has one rule: absolutely no falling in love. Easier said than done. Throw together a girl who believes rules are meant to be broken, and a man whose whole career revolves around following orders and you get a recipe for disaster. What could possibly go wrong?