Easy solution: grab the phone & shove it up her twat. With that hole being occupied, you'll have no choice but to relocate your penis to the nearest available orifice - her anus. I call this "How To Get Anal From A Prostitute Without Paying Extra, by eFukt.com".
Initially she makes it pretty clear that she doesn't want anything in her ass. But our hero Johnny Cock Rocket uses the powers of persuasion and before you know it he's making sweet love to her festering cornhole. Not exactly fap worthy but if you're like me you'll fap anyway.
The medical bills for stitching up a busted asshole probally outweigh whatever she was paid to be in this porn. She doesn't even notice the prolapse happen lol.
I like to believe this has less to do with his cock and more to do with her vagina. Some girls are just extremely sensitive down there, and I think that even a 3 inch pecker such as my own could produce the same results. Don't pity me for having hope.