She is called "Natalyia" in the site Cosplay Mate, and she cosplays Rukia Kurosaki from Bleach : http://www.cosplay-mate.com/tour2.html
Is she some known model, or she can only be found in those centerfold sets in Cosplay Mate?
#1: glamour lez with "Isabeli" (cosplaying Yoriuchi Shihoin)
#2...