or its cleverer to just ignore him
ignore .
means she is flirting with you so you should ignore her.
Ignore him so that he will know that he is irratiting
tell ur mom or dad on him
At certain points your friends will ignore whatever your brother because he is your brother but if your brother crosses the limit then your friends will never forgive him. Try to tell your brother that he is making a mistake
Just compleatly ignore him and he will soon get bored.
Only at your own peril.
Ignore it. Guys are idiots. They'll undress anything that moves.
It seems that he has sort some of perverted mind and wants to see it happen in front of him. I'd recommend not letting your boyfriend do this to you, and ignore the brother.
You should trust your girlfriend and if she loves you she will ignore her brother providing you are treating her with respect. If she does not stand up for you and her brother continues to try to break you up she should either stand up to him or, if a minor she should talk to her parents about what her brother is up to.
Ignore him. He will also out grow it. Just be cool. Consider it a complement.