It's an evolutionary response. A sign of health among other things.
Evolutionarily speaking, it is to attract potential mates. A large buttocks indicates fertility and that the female will be able to carry and bear young. This is why women developed wider hips and larger buttocks than men.
Playing with one's buttocks can be a personal behavior that varies from person to person. Some men may engage in this behavior while others may not. It is not necessarily common or uncommon, but rather a personal preference.
hell yes
Men typically have narrow hips and less round buttocks. Women typically have wider hips and rounder, fuller (or thicker) buttocks.
Men's buttocks are typically flatter and narrower at the hips. Women's buttocks are typically wider at the hips. Many women's buttocks are also rounder and fuller. Both men and women have "saddle bags", which is extra fat on the sides between the waist and hips.
A female's pelvis is wider than a male's pelvis, especially if a woman has had a child. The male pelvis is narrower and remains narrower throughout life. Also note that some races have smaller buttocks while other races have larger buttocks. The only way to change buttocks that are narrower and flatter to get fuller, bigger, or plumper is if a person becomes obese or if they have filler injected (a surgical invasive procedure).
supposedly
No there all kinds of buttox,
Biologically, women tend to have a higher percentage of body fat than men, which can lead to a larger bottom due to the distribution of fat in different areas of the body. Additionally, hormonal differences between men and women can also contribute to the differences in body shape.
The female buttocks are general bigger because of higher subcutaneous fat storage needs and broader hips.
Men's buttocks are typically narrower and flatter than women's buttocks. However, excess weight can increase the size for both men and women--but men's buttocks will still be narrower hips and flatter, even when overweight.
It is completely a result of genetics.