I came across it by accident and I'm really shocked. One of my friends who works with youth programmes has my niece as on of her freinds. Their profile pic is very 
Do I tell my brother? Or pull them to one side? Apart from facebook when I googled one of their names they came up in a lot of places like bebo and myspace looking very very provocative and sexualised and I can see their chat history. One is 15 and the other is 19. They are not like this at home.