K.N.
R.,
I agree with the advice others have given you so far. We had a situation when my oldest daughter was in elem school, a family moved in across the street. They had a daughter about the same age and the two become good friends. We recognized that their family lived in a way that we didn't want our daughter exposed to. My daughter was allowed to invite her friend over to our house often but we never allowed her to play at their house. When she asked why, we just said, "their family has different rules than what we have here. Its our job as your parents to be sure that you always follow our rules even when we're not with you." She always accepted that explanation and, if she did ever tell her friend the reason why, I don't think it was too awful sounding. If the parents would have ever questioned us, we could have stated the same reason. BTW-jump ahead a few years, my daughter is not friends with this girl anymore by her own choosing. This girls family has dealt with a number of teen pregnancies and even police surrounding the house to find her older sister who had robbed a jewelry store. We are so glad we protected our daughter.
Shelter your child. They have exactly one chance to be innocent children...once that's taken away, they can't get it back.
K.