I'm surprised the Netherlands isn't on there. They apparently have the tallest population in the world and I suspect that penis size has a lot to do with overall body size. That would at least explain why the Koreans and Japanese always seem to do so poorly on these tests. I wonder if they ever study biggest balls?

I would like to know if the ladies can speak to this so we can all know from their viewpoint.

Biggest I've seen was on a German guy, smallest on an American (but then I bet 95 % off all dicks I've seen where attached to either Germans or Americans).

Black guys tend to be a little bigger on average than average white guys... but it's just the averages, there are small ones and huge ones just like everybody else's.

I've seen a huge one on an Asian guy. HUGE!

Yes, general body size has a lot to do with it, but there are surprises. Some short guys do have big dicks. Tall guy with little one? Dunno.. can't recall anybody.

Body fat makes it shorter. A lot. I'm going back and forth with my theories... maybe it's not only the fat that just makes it relatively shorter, maybe a guy with a little pecker might develop self esteem issues and get fat just because of feeling like "I'm unattractive anyway"?
but naaaw, I do think it's mostly that just two more inches of belly fat make two inches less of length.

Something else: it can change a lot in the same guy. I've been seeing one guy for years, and when he's in better health and especially mentally fit, he has one inch more... when he's depressed, it's really shorter (yeah, I did measure, discreetly) even if fully erect.

Honestly the largest I have ever come across was a Puerto Rican\Black man who was almost 13inches. He didn't request FS and for that I am thankful

In my opinion, black guys tend to be thicker, but length via the races is all over the place.

Lucia is right that it's about body fat. The bigger belly a man has, the smaller his penis is but there are always exceptions to the rule and I've met fat guys with giant cocks.

Tall guys tend to be atleast average, but the thin men are almost always monstrous in size.

Are you sure that the penis just doesn't look bigger on thinner men? I find it hard to believe that penises change size based on health. I do believe that a guy who is depressed or out of shape might have trouble getting as much blood to his cock as a really turned on stud. Any guy will tell you that not all erections are the same. When I'm super horny and haven't had sex in awhile, my dick is definitely bigger because it is harder.