lol...it has to do with a couple of factors...and this applies to any Man...diet, are they over weight or not...Testosterone levels within the body...Zinc levels in the body as well...and of course, there is the mental factor...where the mind leads, the body will ALWAYS follow! Now it's just like voyeurwhitemale stated, the bigger the dick, the more ******* is needed...I remember a story of a black male porn star that had like a 22" bbc and every time he was fully erect, it looked like a big black noodle...plus every time he came, he would pass out for a few seconds due to the sudden blow flow from head to head;-) I hope you find a BBC to your liking beautiful, just make sure that who ever the lucky Bull you chose has been fully vetted!