In fact, there are still many girls with flat chests. Some thin girls don't have much meat, and they can't be asked to grow on their chests ~ and many flat-chested girls hate being said, which is quite normal. The important thing is that the girlfriend has a good heart, and the outside is second. If you care, put a sponge pad in the bra or something, it will look better outside ~ ~ In proportion, I think girls from A to D have more cups, mainly to match the whole, and generally the fatter they are, the bigger their breasts will be ~