Beside boob implant, butt injection, transexual surgery, there a lot more of those weird treatments. A lot JAV girls are not hot, but they became hot after these treatments. I think Rio did one of these because her face look so different as Tina Yuzuki. Who cares as long as girl still hotk:The Japanese video below show how girls get their face thinner. http://www.youtube.com/watch?v=Ko1cK7i90NU