Sex. God. Those are the words used to describe Derek Wright around Sapphire Falls. But now that Derek wants to date nice-girl Lucy Geller, those words are coming back to bite him in the ass.

His best friend's little sister, Riley, isn't about to let Derek turn his attention on her sweet friend Lucy. Derek isn't good enough for Lucy, and Riley has no trouble telling him that. But when Derek asks for her help in reforming him from rouge to romantic, Riley can't resist the opportunity to mess with the irritating, know-it-all playboy a little. Because she is not a nice girl.