Well you guys could date but it might be a little awkward.
Tell him she sees him like a brother , or just as a friend , or she likes someone else.
You have to think to yourself, is friendship more important then love. Then you have to think if your friends brother likes you back. It would really suck if you lost both things, your friend and her brother.
Warn your friend about your brother and hope she listens. When she learns you are right be there for her.
Larry, Whitey, and his brother, Wally. He also likes playing with Wally's friend Eddie
Ask your friend first, if she says it's okay then go for it.
That means your friend (the girl) doesn't want to be anything more than friends you are now permanantley in the friend zone.
Then the guy likes you and his friend hates you.
If he likes you and you like him,then definitely you guys should date.But make sure your friend is okay with you dating their brother. Before you guys go out,make sure that whatever happens,you guys will always be friends:)
If your friend's brother likes you a little it means that he likes you a little.Maybe you should talk to him and see how he feels about you. Your friend may be lying or her brother likes you a lot he's just to afraid to say it to your face. Hope i helped you out.
I would stick to your friends advice. He/She knows her brother more than you and knows how he treats people.
Imagine him going out with one of your friends. How did this make you feel? Figure out if your feelings are mutual, if not, then tell him you love him like a brother.
Its provably that hes too shy to do it himself, but talk to him!