I have just found out that my DD and her friends have been looking at inappropriate stuff on the internet while at a friends house. I am unsure exactly what they looked at and only found out through the parent of another child who heard them talk about it at school. When I confronted DD she was quite defensive and of course blamed one of her friends. We have had a chat about the dangers of looking at things on the net and I have said if there is anything she is curious about she can come and chat to me. I am still a bit shocked TBH, do I tell the host parent and other parents?