>>719729637
well elves live long right? which would mean that they give birth a lot, and every time a woman gives birth their breasts grow, so elves give birth a lot over their lifetime causing them to have big tits, the "elves have low fertility" is usually a theme because if they had the same fertility as humans then there'd be a shitton of elves considering that they don't die, which would cause the setting to be weird, where you have 90% of the world's population be elves, but you could make it so elves live in another dimension, like you have your fantasy world, where humans live, and there's some elves who sometimes move there from their own dimension, but they have a massive infinite dimension of their own that just has billions and billions of elves, who constantly fuck and have babies