I think to some degree, big men do have bigger penis but bigger doesn't mean it's going to be like 8+ inches long all the time. The average is only like 5-5.5" so bigger can be 6-7.5 inches long.
A lot of you here have well above average dick sizes that only occur once in a while in males.
I say most big guys have bigger cocks. I am asian and I am not even bigger than 6" long. I am just 5'7 tall and kinda skinny. I know there are hung asians out there but the ratio is too small to make a claim that dick size really has no relation to body size. I mean how silly does it look for a big guy to have a smaller penis than a smaller guy? That just doesn't sound natural at all. A 5" on a 5'7 guy just doesn't look the same on a 6'7 guy!
Having said that, I am into NBA basketball and I REALLY want to find out if those big, super tall basketball players are hung like hell (they are black too!). I am gay by the way and I love shaq. I am only attracted to big guys (chubby/stocky/bear).... I found this pic on Google the other day and I was drooling... Shaq in suit!! I was mad that NBA players wear jockstrap and I can barely see any bulge. But this pic got me thinking... maybe Shaq does have a big one? I've always thought he had a small one. lol