My family environment is limited. I share a room with my brother. Recently, he often comes to see me.

I am not a moral guardian. Don't always shout incest and non-incest, as if you think you are noble. I just want to say that those who have brothers and sisters at home probably have the experience of being curious about the body of the opposite sex at home, especially during adolescence. Your brother is in this situation now. In fact, with other furtive explorations, my curiosity is getting stronger and stronger. It's better to find a suitable opportunity to make a deal with him and let him see your health, so that he can't bother you any more. This is the limit, otherwise he must tell his parents. Of course, if you can accept this behavior, it is another matter, just pay attention to confidentiality and contraception.