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Sexualization of the buttocks , especially of the female gender, has occurred throughout history. Sexologist Alfred Kinsey suggested that the buttocks is the primary sexual presentation site in primates. Some anthropologists and sociobiologists believe that breast fetishism derives from the breasts' similarity to buttocks, but instead provide sexual attraction from the front of the body. 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 as a 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.
That Kim Kardashian has admitted to bottom-boosting injections just confuses the whole issue. Big bum equals good now? Someone help!
Like your face, your butt goes through so many shifts and changes over the course of your life that it could probably have its own sitcom. To get an idea of exactly how your butt changes every decade or so, Cosmopolitan. Karen E. Type keyword s to search. Today's Top Stories. Getty Images. AGE 13 At the age of 13, your butt is as small as it's going to be sorry, small butt enthusiasts.