Best way to tell my big brother, I'm dating his best friend?

[Splendora]

My big brother has a hot temper. His friend keeps saying we will say it at the right time but this has been going on for three months. I can't keep sneaking around like a kid. How best to let him know?

[LazerBean]

If you're brothers friend is a good, respectful guy it won't be a problem.

[MikeInHawaii]

1) It’s none of his business.
2) If this guy is some kind of jerk who isn’t suitable for his sister to date, why did he choose him for a friend.

[Avicenna]

Your boyfriend should tell him, or the two of you should do it together.

[Guy13]

I am dating your friend...

[Furiousaf800]

Troll...

[In_Trance]

Straight up