Q: My stepson and his girlfriend recently explained to my 8-year-old that sex was when people touch their privates. I didn’t think this was appropriate. I’m upset and don’t know how to deal with the situation. I told my husband that we needed to tell him it was inappropriate and that he shouldn’t be alone with the kids anymore. Lately, they have been going into his room while he lies on his bed, speaking to his online girlfriend. What is an appropriate response? Am I overreacting?