I was babysitting my niece (7) and nephew (9) who had to use their Dad's computer to do their homework. We couldn't find the login so my nephew clicked on the Opera browser icon to see if would work on a different browser. When we did so about 1001 porn windows opened up, plus a chaturbate screen (indicating he was using porn webcams). They laughed in shock, I quickly grabbed the machine and closed everything down. Now I don't know what to do. He's a nice guy, my sister says they often fight because he wants more sex and she's tired. I sense the best thing is to say nothing, but it was very easy to find and it seems my niece and nephew often use this computer. What should I do???
Thanks.