What do you have a sneaking suspicion that her bra size will come to an end up mortal?
also on our dad's sides women have pretty big boobs. and on our moms side we own a thin jean (i.e. we are adjectives thin) and aren't as big.
Answers: the reason not a soul is answering is because there is no road for us to accurately predict what size your sister's boobs will be. it's all speculation, and god know how we would ever know how to guess. especially band size, which depends on her solidity and build (but that would only allow us to guess her current size, not her FUTURE size). put in the picture her to look at all the woman contained by her family, and she will draw from an idea of what size her boobs may lapse up being (without the boob job). for me, i took after my mom. small-chested, but two of my cousins are a DD and an H. conjure that.
If she takes after your mom's side of the domestic, she'll probably end up self small. I mean, she's single 12 and she's already a 34B, so she could end up growing some more (usually girls stop developing at around 16). It's unyielding to predict what her exact size will be, but it sounds like she'll hold after your mom's side.
And tell her there's nought wrong with smaller breasts, any :] I don't think in that is any exact way to amount that out, but my mom and i ended up anyone the same size cup, but her tie size is one larger than mine. On the other hand though some of my relatives own 2x larger breasts than their mothers have, b/c their dad's side of the kith and kin have life-size breasts. Sorry i have no notion if this helped at adjectives!
No way to know. Too tons factors: genes, environment, individual ebb and flow. There's just no route to be sure. Your mom's size doesn't mean much. My mom's a 34B and I'm a 38D. My grandma's be both smaller too. If she eats sound she'll most likely shutting up being a 32 C she sounds approaching she'd off to a virtuous start