It is for some women, not all are anatomically identical.
But where the problem comes in is fellatio, most men like fellatio but except for rare cases, a man with a penis girth of over 7 1/2 INCHES probably can't find a woman or a man for that matter to open their mouth for him.
And the rare cases that do find someone who can't dislocate their jawbone like a snake but at least is anatomically able to take it; I can tell you what it feels like, it feels like have a mouth muscle spasm, you know lockjaw and if he starts pumping a little; it makes you feel the corners of your mouth will tear.
Then if it's your first time, count on a sore for several days after.
Plus the thicker the penis, the longer and harder it is to get that big boy down the chute, in the case of a man with a true 10x7 3/4 , I think it took me almost 45 minutes to get him to his nuts.
I wasn't crazy about my jaw locking up but man he had a gorgeous cock, great wide hairy chest , huge feet and strong legs and I never saw a man with hands as big as his.
and his blue eyes, yum