I got the idea to read E. Lockhart's book The Disreputable History of Frankie Landau-Banks by reading reading Lenore's review on Presenting Lenore. It's geared toward YA but I absolutely loved it!
Frankie is a high school sophomore at a boarding school. Over the course of the past summer, she went from an invisible stick girl to a 'curves in the right places' girl. So, naturally, one of the senior popular fellows notices her and they start going out. But Frankie feels like she's not really 'in' his crowd and that he never wants to be part of her world. And he's got some mysterious things he does with some of the other guys. Frankie sets off to find out what that's all about and ends up with a 'disreputable history'.
I felt like Ms. Lockhart captured the different 'types' of teens and the group dynamics that play out in high school really well (at least from what I can remember!). I loved Frankie - she is independent but desires to be loved, she talks to herself (LOL), and she's got a fierce intelligence.
It's a quick read, but a great one that you don't want to miss!