An upward curve just requires a 69 position and it will go down, guaranteed.
But one reply was correct, girth is what's important whether or not it will go all the way down.
I met a man that had 7 inches x 8 3/4 inches. It looked like a stump.smile.
I couldn't get my mouth around it. I met a man that grew to 10x71/2 and it took 45 minutes to get him down all the way.
I can't imagine a man 9x9. I would like to see the mouth that could get unhinged to take down that monster. I am saying it can not be done, not deepthroated,that is.
If you can't get your mouth around a cock, it ain't going anywhere much less down.