http://www.time.com/time/magazine/article/0,9171,1840556,00.html

This article above posted in Time Magazine written by Belinda Luscombe is about how teenage girls seem to be getting older, at a much younger age and are becoming more sexually ambitious at a younger age due to a lot of what they read and see through various media outlets. In the article they point out that even facebook pictures posted by the female youth seem to be getting "sexier", which is a lot different than 10-20 years ago. "Nine-year-old girls do not experience dressing up in a sexy way as a sexy thing," says Deborah Tolman, one of the authors of 2007's American Psychological Association (APA) report on the sexuality of teen girls. "They're just wearing clothes and thinking it's cool to look older." School-age girls want to wear thong underwear for the same reason their mothers wanted to wear crocheted bikinis: to drive their parents nuts." 

Please read this article for more information!