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.
[1] Biological anthropologist Helen B. Fisher said that "perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse".
[3] In a 2017 study, using 3D models and eye-tracking technology, Fisher's claim was tested and was shown that the slight thrusting out of a woman's back influences how attractive others perceive her to be and captures the gaze of both men and women.
[1] Spanking was prominent in pornography in Victorian Britain with erotica such as Lady Bumtickler's Revels by John Camden Hotten and Exhibition of Female Flagellants by George Cannon being consumed.
[1] He says: Thus we find, among most of the peoples of Europe, Asia, and Africa, the chief continents of the world, that the large hips and buttocks of women are commonly regarded as an important feature of beauty.
This secondary sexual character represents the most decided structural deviation of the feminine type from the masculine, a deviation demanded by the reproductive function of women, and in the admiration it arouses sexual selection is thus working in a line with natural selection.He adds that The European artist frequently seeks to attenuate rather than accentuate the protuberant lines of the feminine hips, and it is noteworthy that the Japanese also regard small hips as beautiful.
The more jeans sales increased, the more ads were used which emphasized the derriere, to such an extent, in fact, that this particular area may eventually surpass breasts as the number one sexual image of the female body.