She does it .. for science! Whether she is soaking up 9"-of-a-12"er, or 6" of a 9" dong, that is still impressive how much schlong a girl can grind into a mess.
Is that a 12inch driller's fracking-tool? She looks to take 3/4s of it! And notice she studies the sizing of it pretty-good. At one point, the off-screen camera-guy asks her & she sez it feels & fits just fine! She bottoms-out/hits-the-top-end of her vagina, at approx 9" !!