Guys, guys, let's get real here. Assuming she is an average sized girl, this guy has a cock that is almost exactly the same length as mine, which is exactly 6.00", maybe 6.25" if I really press the ruler hard against the bone. This guy is not longer than that. And as far as thickness is concerned, I am definitely thicker, and I am only 5.5" around. I would estimate that this guy is 5" to 5.25" max around.
Now if Kim is considered "tiny" than I would say that this guy could be even smaller - maybe 5.5X5" or so.
But in fairness to this guy I would say that he is somewhere between 6x5 and 6.25x5.25" but not a hair bigger.