My son knew it was wrong because we have had very open conversations with him about sexuality already, (mostly my husband though). The father is home a lot and we do things together. My son knew it was wrong, that's why he told his sister that she wasn't supposed to tell. The emotions I'm feeling are quite normal, and you are entitled to your own opinion. The church we go to teaches purity, which is what the bible teaches, no in turn, we also teach that at home. We have already expressed to our son that the fact that he's curious is quite normal, but doing something he knows is wrong, is not right. Anyhow, thanks for your post.