Pants on Fire (novel)

[2] Katie Ellison lives in the town of Eastport and is about to be a high school senior.

Her boyfriend Seth Turner is a member of the high school football team.

She has been making out with a drama club member, Eric Flutely, behind Seth's back.

To avoid being shunned by association, Katie participated in driving Tommy out of town by helping Seth spray paint Tommy Sullivan is a freak on the exterior of the new gymnasium (it is later revealed that Seth had wanted to spray paint a harsher word than freak, but Katie couldn't let him).

Katie can't help but start making out with him behind her boyfriend's back, too.