Category: Education and the Muslim family

I think my brother is gay, and I say this because of the way he talks, the way he does his hair, the kind of clothes that he wears and the things that he is interested in. One time I used his USB and saw some pornography on it, including anal intercourse, and I do not know whether it was between two men, because I closed it quickly and erased the file. I asked him about it and he said he did not know where it came from, but in the end I found more in his room. I also checked his personal computer and I found out that he visits gay websites in the country where he is studying. My question is: do I have to advise him and warn him about the bad consequences of this sin?