Nature has produced an astonishing diversity of shapes and sizes for the male intromittent organ. In fact, if you included the hemipenes of lizards, the duck’s corkscrew, and spiky clubs deployed by some insects, you could make a neat poster along the lines of “The Doors of Ireland.” How did the human male end up with his particular appendage? Human females think it’s pretty, that’s how. Maybe.
That’s the proposition of a group that investigated what modern human females find attractive in a male.
Yep, a gang of guys, including one named Peters and another named Wong, showed female subjects oodles of naked-men images. They varied the height of the computer-generated men, and the shoulder breadth, and the size of the intromittent organ.
Which computerized guys would gals find most attractive? Does size matter?
If it does, the authors say, you could conclude that the human sperm-injection device actually evolved its particular size due to female “precopulatory sexual selection.” That is, prehistoric females tended to choose mates based on a visual appraisal of the copulatory organ. This would be possible because humans are unable to retract their penes the way snakes and whales can, and because boxers, briefs, and even penis gourds are recent innovations.
So, yeah, females definitely prefer take penis size into consideration when they’re sizing up a naked male. A larger penis wins a male a higher rating for attractiveness. Not too large, mind you. A really large penis actually erodes a computer-dude’s visual value. So I suppose you could say that size matters in both directions.
1: In other species, it’s generally the internal battle that determines shape and size of penes. Generally, females evolve mating parts that give them more control over whose sperm they receive. Males respond by evolving penises that can defeat whatever barrier the female evolves. It’s the battle of the sexes, Sex Edition. Eg, it’s possible—probable, even—that the peculiar shape of the human penis functions to remove from the vaginal canal any sperm deposited by previous mates.
2: The study was conducted with the women of Ottawa. I’m not saying it’s not a diverse city. But cultural preference have TREMENDOUS influence on what a person deems attractive. The ancient Greeks have already submitted a substantial body of evidence that this preference is not a human universal, not an biological fact of human mate selection. So, when this study has been repeated in the mountains of New Guinea and the bogs of the Amazon, I’ll reconsider.