Hello, Im 18 years old and I only have a bra size of 34A. I don't want really large breasts, as I only have a small figure anyway, but I would like to have a B cup, because I just feel A is quite childish in a way, there are 13/14 year olds with the same size breasts as me! Do you think there is any chance of this happening? I was looking online, and some people seem to think that your mothers size is a good indicator of your eventual size, but my mum is two sizes bigger, so Im not even close :/ So is it possible for there to be breast development after the age of 18, or is this it for me providing that I don't become pregant/gain lots of weight?