V.C.
I agree there is a possibility that he's been molested, but I wonder if calling CPS is a bit extreme for this behavior. We grew up in a different time, but I remember a kid in 1st grade having his friends grab girls during recess and bring them to him to be kissed. He was a bully and was abusing the power he had over kids. I also remember playing "I'll show you mine if you show me yours" with a neighborhood boy near my age. Perhaps they were exposed to inappropriate content on TV or at home, but I think it was in the realm of normal kid curiosity. I'm not saying this behavior is OK, I'd be really upset too, but you have to try and help this boy, not label him too early on as someone dangerous, perverted, etc. Do any of your neighbor's kids attend school with him? If so, maybe they can speak to his school guidance counselor about it and let them investigate with the boy (especially since the parents aren't around during school). Perhaps they know of similar behavior at school and are already trying to address it?