Anthropological Cock

Genetics has to play a role, but it's not hard science. I look at more like family traits. I think dick size has a lot to do with ancestry. Cultures who have in the past seemed to have had more selection for larger penises either by a very sexualized society or through general nakedness in their culture seem to have them today... Italian (ancients Romans were always swinging it around), Africans (living to a large extent naked amongst each other) Greeks (kind of the same thing as the Romans). East Indians seem to have large penises and a robust sexual past culture. I know there are no hard and fast rules... plus, add in that we are all becoming so mixed up genetically, makes it kind of hard to predict. But still, I think there's something there. In the opposite also... Asians seem to have a culture of much more modesty (highly sexual at times, but more private) and following my logic (if there is any), generally smaller penises.
I come from a combined family and one half of my brothers are completely testosterone ridden and have larger dicks. Unfortunately, I'm from the other side. many Europeans comes from roving Huns who were a pretty randy group, so I think they pasted their fat cocks on to their German ancestors. I think there's some strong evidence that could be plotted out more specifically through some anthropology studies.