That site is fucking bullshit.
Well, not entirely. It has a few facts sprinkled around, but in general it seems set up to reach predetermined conclusions that big cocks are better. Now, I believe this is true, but not for the reasons this site lists.
1) The site gives no references to the research that it's says supports its claims
2) It claims larger testicles produce more semen. In fact while larger testicles DO produce more SPERM, sperm are a tiny fraction of semen volume. Most semen is produced in the prostrate and accessory glands.
3) It claims that stimulation of the AFE spot (a spot that doctors don't even universally recognize and evidently only 1 in 7 women have) increases hip size (among other things) in women. Just imagine the research methodology necessary to tease THAT statistic out of the data. This is illustrated by a set of images claiming that a woman gained 3 inches on her hips through sex with a large penis (presumably in one sex session, since she's in the exact same outfit and pose). It would take a barrel of donuts to do that for the average woman, and if AVOIDING sex with a large cock could take 3 inches OFF a woman's hips overnight, Jenny Craig would be out of business tomorrow. Or you could believe it's photoshopped.
4) It claims that mixed race people are more genetically diverse (true) and hence more sexually developed (a total contradiction, as genetic mixing produces more average, not more extreme, results)
5) A sentence later it claims that blacks are the most sexually developed race. So which is it? Mixed race, or black?
6) It repeats the classic Big Black Cock myth, and throws in one about hispanics as well. BBC is a nice fantasy for all you racial-humiliation cuckolds out there, but it just isn't true. Since the main thrust of this site seems to be reinforcement of this myth, it deserves some attention.
6A) "Black" is a social term, not a genetic one. Central africa contains more genetic diversity than the entire rest of the planet - including the not-very-well-hung pygmies.
6B) This is reinforced in the "world map of penis size" which shows the Congo and Sudan (home of the pygmies) as a the core of Big Black Cockness. It also shows northern south america as the home of big-cocked latin lovers, but this area is populated by people of mixed south american indian/european descent-why aren't spain and portugal better hung if hispanics are better hung? It shows Canada as being better hung than the USA, but both of these are immigrant nations, and the US has a FAR higher proportion of black and hispanic citizens than Canada, so we'd expect to see the opposite. There is no data source given. This map is total bullshit.
6C)
The Definitive Penis Size Survey by contrast gives the results of a very large survey of cock size. In fact it shows that black and hispanics are, on average, slightly less endowed than the average white guy. Sorry BBC fans.
7) The site is advertising cams and penis enlargement. The guy hopes to write a book and conduct college lectures on the subject. What course does he expect to teach? Is he going to put this site in his professorial resume? Why doesn't he reference the papers an academic studying this field would certainly have published on the subject.
8) The site uses the same background colours as cuckolds.com. This is a bit much of a coincidence for me.
Basically, this site seems to be someones pseudoscientific BBC humiliation jerkoff effort. I'm fine with that, but passing it off as real science is just fraudulent.