I think it may just be the hair; doesn't do much for me, but I understand how they have to do something to their look every now and then. My only gripe is that butt piercing; I don't like that hemorrhoid-looking thing it caused her ass in that Anal Nymphos clip.
Na, she just got superlazy. She is what, 27, 28? If she hit the gym regularly she could still look like a million bucks but even the greatest butt genetics in the world won't stand up to years of doing fuck all but sitting on it and smoking pot.