Do estrogen cream increase butt size?

Estrogen is the female hormone which brings in the women-ly changes in women. It primarily accumulates fat in important areas. It accumulates fats under the mamery gland in the chest, and in the vaginal area and in butt region.

Having extra fats in these regions ensures easy delivery of baby.

So yes estrogen will make your butt appear large, but with more accumulation of fat and muscle (muscle if you have a very good genetics from your parents)