The female buttocks

The erotic beauty of the female buttocks was important to the ancient Greeks, thought to have built such statues as Venus Kallipygos (although only a possible Roman copy survives), that emphasize the buttocks. Bare buttocks were also considered erotic in Ming China, where they were often compared to the bright full moon.

The buttocks have been considered an erogenous zonein Western thought for centuries, and the eroticization of the female buttocks was heteronormative and due to their association and closeness to the female reproductive organs.

In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. Testosterone discourages fat storage in these areas. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. Evolutionary psychologists suggest that rounded buttocks may have evolved to be desirable trait because they provide a visual indication of the woman's youth and fertility. They signal the presence of estrogen and the presence of sufficient fat stores for pregnancy and lactation. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. Since development and pronunciation of the buttocks begins at menarche and declines with age, full buttocks are also a symbol of youth.