Essentially, attractiveness pretty much stopped going up after about four inches in length. So size does matter to women, but ...

"Size matters" sounds like a tabloid cliché, but for evolutionary biologists the size of the human penis is truly a puzzle.

Most women don't care about penis length or girth—but many men don't believe them. A recent study shows that most women ...

Size really does matter, but only up to a point. Men may overestimate the extent to which a large penis makes them attractive ...

Human penis size indicates male attractiveness and fighting ability, with a larger size more attractive to women and more ...