Youth fiction by John Green and David Levithan.
This a book for older kids (16+ at least) that seemed very real-life-teen to me.
So when I say it was good, I mean it was engaging, well-written, and also authentic.
Thematically, you might have a problem with your kid reading this. (Example: There was a homosexual character. Okay, two. Maybe more.)
But hey, it's not meant for the moms, right?