Researchers at King’s College London think there's a “concern that some men have about their penis size.” No, really?
So they stuck 15,000 guys in a room and broke out the schlong-o-meter. The results?
The flaccid muff wrangler is 3.6" dangling free, 5.2" when stretched a bit (don't ask), and 3.7" in circumference.
Erect the average Mr. Johnson rises to 5.1" standing and groans to 4.5" in girth.
Okay dude warm-up a Stanley FatMax and see what's what...just don't get caught by your wife and end up divorced and on YouTube.