Help to find the movie! Please

I only remember that there was some sort of crowd of teenagers in the village some or the village away from the city. In this village lived people. Was it girls and they are lured into bed Teens have sex with them and during sex brutally killed them. I remember there was a time there was a girl with short hair for the boy (the blonde) and she bit off a guy's dick, glasses, sharp teeth (teeth were long and in my opinion dark). There was also some girl and it during sex, put some pipe in your mouth teenager, I do not remember, but he painfully died. One of those killed during sex, instead of them there were other clones of these people, but they were on the side of the killers. Then at the end of the film, the teenagers who survived stood and the leader of these murderers were kept on a tray the head of their dead friends. Remember on the tray was the head of a kid with glasses and the head of a Negro and someone and the killer is like saying who wants to try black meat?
Who wants bespectacled meat can't remember any More.
I apologize for the error. Please help to find this movie, I would be very grateful. Watched it like in the 2005-2007 year.