While looking for something else, I stumbled upon this article:
http://www.scientificamerican.com/ar...of-the-phallus
Some of the hypotheses are very interesting...
I've been assured by a well-renowned scientist that the head of the penis is slightly wedge-shaped so as to assure, when the male is withdrawing from the vagina, that the vagina doesn't "slam shut" but merely eases closed Originally Posted by ferdburfHuh? I always thought they took a few days to close... (all that stretching ya know)...