Why are there so different asses?

Weapon of seduction, the human butt is made up of two fleshy, soft and swaying hemispheres, especially the female ones. The shape of each buttock is determined by a muscle known as the gluteus maximus, whose function under normal conditions is none other than to stabilize the pelvis and provide stable support to the lumbar spine, apart from serving as a cover for anal odor. Thus, the anatomy of the butt, almost as varied as that of the face, depends on the shape and development of the buttocks, which is partly determined by heredity and partly by physical activity : exercise, for example, makes the buttocks are firmer and tighter; and sedentary lifestyle, on the contrary, favors fat deposits and flaccidity of the buttocks.