This is the age they tend to become more self-conscious and inhibited – so something is clearly going on with your son and you need to find out what. Teenagers often test the boundaries with their parents, but it’s not usual for boys to make suggestive sexual comments to female members of the family, and less usual still that they expose themselves. I monitor his internet access and I haven’t found evidence he watches porn or adult content. In general, he is quite an anxious, angry and unhappy person at home. I’ve tried punishments that we use for other poor behaviour.
I want to show him, in front of his sister, that his behaviour could be classed as criminal.