<human>: Can you provide a brief overview of the text?

Is there a parenting subreddit for this? 

Anyways, as the title says, I'm a little upset right now but I'm not sure how to explain why I'm upset to him. We all know that it's a natural thing and I'm not angry at him for that...in fact I laughed when I caught him but felt bad because I could tell he was upset. He left without closing the browser but when I went to close the browser I was a little shocked. He left a picture up on a site designed for jailbait pictures. Of course, I'm not angry at that just because I feel it's natural to be attracted to girls your own age. Here's what makes me a bit upset. I'm almost positive it's illegal. There was no nudity but it seemed suggestive. 

I'm afraid that my ISP will see this and I'll be facing charges because I'm the owner of the computer. Excuse my ignorance on the matter though...I've never really thought of this situation. How should I tell him that what he was looking at was bad legally but I don't want to tell him he's wrong for being attracted to girls his age. Also, how should I approach the situation legally? I'm sure he's visited these sites other times that I didn't catch him...
<bot>: Caught my 15 yr old son looking at "jailbait" sites. How should I tell him it's wrong without confusing him and how should I defend my son's situation if he came into legal trouble from the ISP?