Celeste Wells didn't think twice about becoming a surrogate mom for her twin sister. But when Zoie's marriage ended suddenly, heartbroken Celeste just couldn't let the little girl go.Clay Sullivan's world shattered once his wife walked out on him and their daughter, and Celeste was a reminder of the painful memories the tough survival guide had "barely" survived. Yet she was everything her sister wasn't--loyal, loving, committed to the child to whom she'd given birth. Not to mention the attraction that sizzled between them the moment they came face-to-face at their fifteen-year reunion! Would falling for Celeste be making the same mistake twice...or giving Abby the mother she was always meant to have?