[concordat]

My 9 year old brother likes to secretly dress up in our mother's clothes (he doesn't know that I know, hehe), he also does this cute hip thing and says "do I look like a girl when I do that", but in a mocking way, as in "ew girls and the stupid things they do" way.

Now, I'm not jumping to any conclusions but just in case...what should I do in order to avoid him having future issues?