Sophie got a request over at Pop Goes the Library for "my 13 year old girl, there was nothing that appealed to me or that I thought would appeal to her, an athlete with little interest in clothes, makeup and to a lesser degree, boys."
Sisterhood of the Traveling Pants is a no-go, because the mother and daughter want to avoid books "about girls having sex and other more adult topics."
Full request is at Pop, along with Sophie's initial responses. My "off the top of my head" responses are in the comments (and I apologize now for typos etc., it's the posting while packing ohmygoodness I forget my makeup madness.)
I know the readers and lurkers here will have tons of suggestions; please post suggestions over at Pop.