The advertisement says she is 21. But, if you look at the copyright stamp at the bottom of the lower picture, it says copyright 2006. So, she was well below 18 at the time the pictures were taken, these aren't the pictures of the provider in the ad, or she's lying about her age. In any case, red flags go up on this one (perhaps this thread should be merged with the "Why do providers lie?" thread).
http://kc.backpage.com/FemaleEscorts...es-21/11292535