I've put on some weight recently (junk food for studying, then junk food overload whilst anticipating results in August!) and have gone up from a size 10 upto a 12.
I'm 18 (height 5'5) and have never had kids who I've breast-fed etc.
I was just taking measurements for a bridesmaid dress when this came to my attention.
The size and shape of areolae are also highly variable, with those of sexually mature women usually being larger than those of men and prepubescent girls. Human areolae are mostly circular in shape but many women and some men have areolae that are noticeably elliptical.
The average diameter of male areolae is around 25 mm (1 in). Sexually mature women have an average of 38.1 mm (1.5 in), but sizes range up to 100 mm (4 in) or greater. Lactating women, or women with particularly large breasts, may have even larger areolae.