Hmm. It seems that the faces in these images have been faked. The expression is too similar in all of the pictures. I would say that someone has taken a single face from another woman and pasted it on top of all these pictures, Photoshopping them a bit.
Anyway, the body is that of Kira from justteensite.com:
I found a gallery of her that had an image to confirm this properly (*exact* same pose and background as in one of those pictures), but the link is not allowed here.
