...your 12-year-old sister is wearing a bra size that is almost the same as yours. I wear a 32A, she wears a 30A. I mean, I'm usually okay with my boob size because it means I have to wear bras less (I hate wearing them for function, but I like wearing them as an accessory, like under see-through shirts and all that fun stuff!). And I guess that is why genetics is so fascinating. She'll probably be taller than me soon, plus she already has a bigger shoe size!