Two of my sons were playing at a neighbors house with their 3 yr old. His mom brought them home and said that my older son who is 7 had taken off the little boys shorts and underwear and they were under a blanket together. We asked the little boy if my son touched him and he said no, just that he had taken off his shorts and underwear. I was so embarrassed and angry. I realize now that I should not have been so mad but he's 7 and he knows better. I've told him that nobody is supposed to do that to him and he is not to do that to anyone else. I think it bothers me most that it was a child smaller then him and who did not know any better. I feel like he was being a predator or something. Now I just don't know what to do. He won't tell me why he did it, he just says he doesn't know. I feel so upset and worried and I just don't know what to do. Please help, I need advice. Is he acting normal or do I need to be as worried as I already am?