I found out my 13yo brother watches porn?

I was on the laptop yesterday, but I never go on because I normally just use the family computer. I was going through the History and I found a site called 'Pornhub'. I was really shocked, he is only 13. I confronted him, and he admitted he watches porn. I told him not to watch porn anymore, and if I found... show more I was on the laptop yesterday, but I never go on because I normally just use the family computer. I was going through the History and I found a site called 'Pornhub'. I was really shocked, he is only 13. I confronted him, and he admitted he watches porn. I told him not to watch porn anymore, and if I found out he was still watching it, I'd tell my parents. So today I went on the laptop again, and he'd been on it again! I was really disappointed because he promised me he wouldnt watch it anymore. I just don't think he should be watching it at that age, and porn sites also give you viruses (don't they?) and our laptop is fairly new. Should I tell my parents? What should I do?
11 answers 11