I think in those John Thompson GGG films they just use complete amateurs from where ever, I dont think they are established stars, that might be the only film shes ever been in.
If you watch any of his movies, he usually advertises throughout the film for girls or guys to apply to be in his other movies. Hes based out of Munich, I think.
This is a slow moving thread, but still one of my favs. Here's a little fuck with cum on titties to try and get the ball rolling again. The 4th vid is super hot: