The guy behind the Kim Kardashian sex tape says he wants a piece of Draymond Green -- saying he was so impressed with Dray's monster penis, he's offered the guy a 6-figure porn deal!
Vivid Entertainment honcho Steve Hirsch fired off a letter to DG saying he saw the dong selfie Green accidentally posted on Snapchat over the weekend ... and believes it's the perfect centerpiece for a new celeb sex tape.
"Here's the deal: We will give you $100k to star in a porn called 'Drayzilla,'" Hirsch wrote.