In this same vein of humor, I’ve always been fond of the non gender specific joke: “what kind of architect puts the playground right where the sewer pipes let out?” That said, there is a bit of scientific puzzle here. We don’t actually know why human females develop and maintain full breasts. Among primates and “close” genetic relatives to humans, it’s pretty unique. Among most mammals it is uncommon at the least. Some apes DO develop a full breast, but it is most common among animals that this change only occurs in pregnancy or in some cases to signal a mating period. HOW it happened scientifically is probably reasonably clear cut- a gene mutation causing tissue development was passed down. But… why that mutation was selected for breeding remains a bit of a mystery.
Likewise the human butt is a bit of a mystery- or specifically the female butt.
Now, I won’t dive too deeply into the general topic. I will say that there is a general observation that on the whole the male of the species finds the “hourglass” shape pleasing and this seems to be historically true for the most part. While there are cultural differences in preferences for body type, even where higher body fat is seen as attractive, it is generally the case and observed in historical preferences from cultures world wide that a certain ratio in which the female bust and hips/posterior to waist size ratio tends to favor where the hips and chest are larger than the waist. Exactly WHY this association exists is a puzzle but it certainly appears to be related to mating and perhaps as a sign of fertility. It is true that this “female shape” differs greatly from the average shape of the male and that of the pre pubescent in general- so that could be a factor or cause as statistically if one were to be in doubt of fertility, odds are far better that one with this body type…
.. would at least theoretically be able to bear offspring than those of a different body type. In other words, it is an easy way to tell a female of roughly aging age from a male or underage female.
Specific to the subject of butts and breasts though- one hypothesis is rather interesting here I feel. This hypothesis put forward in anthropology is…. Breasts are butts for the front. What? Indeed. You see, the prevailing theory is that as is general common among animals and primates, human ancestors and most certainly our pre bipedal ancestors did things “doggy style,” from behind. This likely meant that visual stimulus or association with sex for the male would be with the butt, that’s what you mainly see along with the back when sex is performed this way.
This theory holds that the increased personal intimacy of this type of intercourse led to more committed pair bonding and perhaps was a major factor in the formation of the basis of nuclear family.
Building off of that theory- the hypothesis is that males who were used to sexual association with the visual of the butt would favor selection of women with chests because.. essentially in plain terms-
Likewise the human butt is a bit of a mystery- or specifically the female butt.
Specific to the subject of butts and breasts though- one hypothesis is rather interesting here I feel. This hypothesis put forward in anthropology is…. Breasts are butts for the front. What? Indeed. You see, the prevailing theory is that as is general common among animals and primates, human ancestors and most certainly our pre bipedal ancestors did things “doggy style,” from behind. This likely meant that visual stimulus or association with sex for the male would be with the butt, that’s what you mainly see along with the back when sex is performed this way.