How common is this? Approximately “20 percent of adult men have a 4-inch penis,” says Rowe. To put that number in perspective, if the adult.
1 shaft, 4 heads: The echidna's penis. The echidna is an odd animal for many reasons. It looks like a cross between a hedgehog, a platypus.
My penis is 4.2 inches long erect and 1 inch girth erect is this good enough for sex? My penis is 3 inches when flaccid and 4 inches when erect, I’m 14.. is that normal? 4 inch penis is just under the average size which is 5.2 inches or 13.12 centimeters when fully erect.