[PaulaJ]

Wow, that's weird. I thought the faster growing boob side was the opposite of your dominant hand, i.e.; writing, throwing, batting, chopping, golf swing, guitar, etc.

Why would that be?

I'm right handed and my right boob is bigger too. I thought it was because the pec behind it was maybe a little bigger and that was pushing it out, though it is also rounder, and the nipple is a bit bigger too.