I just told my brother who is gay (Kinsey 6) over the phone that I'm bi. He was really supportive and gave me some advice on coming out like telling me that there's no right way to do it and that I should just take my time and he told me that I should not do it when my mom tells me to do it, but when I'm ready. He also reminded me that tons of people he knows (including his roommate who's also a guy), are also bi. I definitely trust him to keep my secret because I know him pretty well and he is really good at keeping secrets. Of course I had to do it when my mom wasn't around because she doesn't want me exploring this issue right now (you would know how over-protective she was if you have read my previous posts on here), but it just feels like a great weight lifted off of my shoulders that I finally told my gay brother. I'm still not ready to tell all of my friends yet, but at least my brother knows now.
My brother really loves me and is super supportive and we don't really ever fight. Although we used to fight when we were younger but he's much older now. He is probably one of the most supportive, trustworthy brothers out there. A lot of brothers would not be so nice and snitch to try to get their brother in trouble, but my brother never does that thankfully.
Congrats on coming out to your brother! I know how liberating it is to finally tell someone. I've gone through it myself, and even came out to my homophobic strict Christian parents, who took a while to accept it but one day they sat me down and told me that they just want me to be happy, no matter who I choose to date, and that they still love me. It was probably the sweetest, most meaningful conversation I've ever had with them. You say that your mom doesn't want you to come out yet - so I take it she already knows and just wants to protect you from any possible hate you might encounter in your social group or from strangers?
Way to go man! Congrats! I am so glad your brother was so supportive. I am sure your mom will warm up to the idea eventually. I am definitely jealous of your brother knowing so many bi guys though, around where I live there aren't any I've met.