Fifteen-year-old Calli has just about everything she could want in lifetwo loving moms, a good-looking boyfriend, and a best friend who has always been there for support. An only child, Calli is excited when her parents announce that they want to be foster parents. Unfortunately, being a foster sister to Cherish is not at all what Calli expected. First Cherish steals Callis boyfriend, then begins to pit Callis moms against one another, and she even steals Callis iPod. Tired of being pushed around and determined to get even, Calli steals one of Cherishs necklaces. But this plan for revenge goes horribly awry, and Cherish ends up in juvenile detention.Isolating herself from her moms, her boyfriend, and even her best friend, Calli wrestles with her guilt and tries to figure out a way to undo the damage shes caused. When her moms are asked to take on another foster child, Calli sees an opportunity to make amends for her past mistakes.

Funny, moving, and emotionally rich, Calli is a portrait of an endearing young woman caught between adolescence and adulthood, striving to do the right thing even when all of her options seem wrong.