Why the Human Penis is so Big
 

For those of you that don't know, the human penis is disproportionately larger than that of other apes. It's being hypothesized that this is caused by the increase in human cranial size. Bigger brains obviously lead to larger craniums, however this meant that the human vagina also had to be bigger. In order to have satisying sex, the human penis also became bigger. Males with larger penises faired better through natural selection as women preferred them to males with smaller penises as partners for sex. The article concludes that in general females prefer males with larger penises, and probably have since prehistoric times. [1]

[1] https://commerce.metapress.com/conte...ringerlink.com

Thank god for brains!

But they only perfer ones that are only so big. Get to be over 8-9", and they have, according to documents I've seen, claimed that it's too much for them. I'll try to post a link if I can find it again.

I read an article somewhere that most women prefer 5.5 - 7

Girth really matters more than length. There are only nerve endings in like the first 3 inches of the vagina. As long as you can get that far in, you're fine as far as length goes.

Not always so. Get to be too long and you start hitting the cervix (I believe, it's been quite a long time since I read this thing) and at that point it just hurts.

I hate hitting the cervix. Vaginas feel so great but once you hit that fucking brick wall it's just weird, haha.

Well, then, case in point, hitting cervix is not fun for anyone.