How do girls get breasts?

Answer 1

They don't just "get" them all of a sudden, they grow them. Breasts are glandular tissue and fat. Nothing will help you grow them faster.
Hormones released during puberty cause growth in the breast tissues, which causes girls to get their boobs

Answer 2

All girls are different, but normally it's a 36 C cup.

Answer 3

Breast size is largely determined by genetics, and some girls get genes for large breasts.

Answer 4

When you start to hit puberty is when they grow.

Answer 5

Actually their breast are made of fat. The more they eat the bigger their breast get. This is not true for all women

Answer 6

Depends on your background. If their mother has large breasts they will most likely to. Also some girls mature more early others are more late.