i started at around 13. they were a large b cup for a while and then at about 16, a year after i started the pill, they went to a c. then to a d when i started taking the pill consectutive months. then when i lost my steroid fat they went to a large c.
dont be worried about small boobs. naturally big boobs arent all they are cracked up to be. they flop, sag, bounce, get in the way, distort clothes, pull chest skin, sometimes hurt and usually have stretch marks on them. sorry for the graphic description but its true. id kill to have smaller boobs.