Kat Caruso wishes her brain had a return policy, or at least a complaint hotline. The defective organ is constantly distracted, terrible at statistics, and absolutely flooded with inappropriate thoughts about her boyfriend's gorgeous best friend, Alec . . . who just so happens to be her brand-new math tutor. Who knew nerds could be so hot? Kat usually goes through tutors like she does boyfriends--both always seem to bail when they realize...