Why is the penis so different

[SquiddlyDee Senior Member Find all posts View Profile Close SquiddlyDee]

There are men 5 foot 3 that weigh 125 lbs and men 6 foot 6 that weigh 325 so I don't think the size differences between men's dick sizes is even the least bit out of the norm

Yes but that's largely down to environmental factors, such as weightlifting or plain old getting fat. Obviously metabolism comes into play and that is genetic, although it can be effected by environmental factors too.