So now that Luffy has officially been entered into my “canon”, it’s not surprising to see him crop up in a Character Ask here. This one’s pretty straight-forward, I think. I don’t remember all of the rules laid out for Luffy’s Gum-Gum power since it’s been a long time since I followed One Piece closely, but I know I’ve seen him stretch his arm much farther than the length of a human body. Based on that, I think it’s safe to say he could easily surpass the limit of anybody’s ability to take his cock if he wished, though I think he’d be much more likely to just fill them up to the point that they’re satisfied and go from there.