There is no average, everyone is different, I'm 12 and a 32DD but my friends are AA-C, so whatever you have at the moment will surly develop in the future it's just that some People develop quicker and before others. Hope this helped xoxox
12-14
Age 12-15
No. God has a plan for everyone. God had a plan for your sister and her breasts is part of it. Besides, who really cares how big your of your sisters breasts are? What about your straight A's or your backflip in gymnastics?
Depends on the age. Girls from the age 0-11 usually don't have boobs. Girls from 12-14 have A's, 15 usually B's.. But, everyone older varies. C's are normal size, D's are big, Double D's are huge.
It depends give them time
Ages 12 to 15 sometimes at ages from 16 to 18
It depends what age you are, but im a young teenager and my breasts are about the size of a coconut
nothing that pretty big for a 12 year old nice
We can grow big breasts by doing sex with other boys because they suck our breasts.
It depends mostly on the size of the breasts in relation to the size (height and weight) that she is. Also, age and body type factor in a little bit, too.
Possibly
there isn't a specific size---it all depends. Everyone develops differently