Paradoxically, one of the least endowed men I ever played with was the biggest shooter. We just jerked off together and he drenched me! I was rather happy, shall we say...
I have had the same experinece. It was incredible how much cum shot out of the guys little dick. I wrote about it in my little blog. Here is the link
I only post true experiences i have had.
And here is the load he shot all over me. It is hard to see how much cum from the photo. But he shot a river of cum that ran down my chest and pooled on the bed.