With eighth grade halfway behind them, best friends Mikey Elsinger and Margalo Epps can predict certain events, like who can't stand them (the usual) and how their grades compare (about the same), like how they feel about the school play (so-so) and the big dance (negative). What they don't predict is that they'll start to like boys...that way.

Then Shawn Macavity is named the lead in the play, and Mikey is struck speechless -- a completely new experience for her. Shawn isn't just any boy. Beautiful, with a hooked nose (it works for him), black (but not dyed) hair, and a name that isn't spelled S-E-A-N, he's the only boy. And so, with a flash of her bug-squashing smile, Mikey goes after him.

Margalo can't help but wonder, has Mikey lost her mind? WAS SHE ABDUCTED BY ALIENS? Where is the Mikey she's known since fifth grade? Meanwhile she has romantic problems of her own to worry about. And unlike Mikey, Margalo isn't telling the whole school about them.

In this fourth book in Cynthia Voigt's Bad Girls series, as Mikey and Margalo struggle to understand that funny thing called love, they find that boys may come and go, but bad girls are bad for life.