I posted a few weeks ago about my 5 year old DD sharing a bedroom with the 10 year old brother of her fathers girlfriend during contact. There is no need as its a 3 bed roomed house, they have occasionally shared a bed too and I think it's inappropriate. I told her father this but last contact they still shared a bedroom. I spoke to him this morning about it, he says he knows the boy and I don't, that the boy is young for his age and that he doesn't see an issue. I said he may act young but he is beginning puberty and that both children need privacy and to not be put in a vulnerable situation. He said he'll think about it. I previously spoke to the NSPCC about my concerns to check I wasn't over reacting, they advised I refer the matter to children's services. If they continue to share a bed/room WIBU to do this? Ex and I are amicable and I don't want to spoil that for DDs sake but feel he's being naive here.