Devious - Cecily von Ziegesar

It's January, and a new semester at Waverly Academy means one thing: new students. Make that hot new students. A gorgeous brother-sister pair is taking Waverly by storm, and the campus is abuzz with fresh gossip and even fresher crushes. But while all the girls are busy drooling over the new it-guy, they'd better watch their backs-because his sister is going to give them all a run for their money. After all, there can only be one It Girl...