LAST NAME's ass
From Torg Adventure
After a couple minutes of fucking your sister's friend, you decide that you need more stimulation to come. You pull out of {LAST_NAME}'s pussy and run your hand through her lower lips, covering your fingers in her slippery lubrication. You smear her slickness around her asshole.
She breaks off on licking Mary long enough to say, "Yes, take my ass, {FIRST_NAME}. Aaaah!" Her outburst comes when you poke your steel shaft into her anus. A little pressure and a yank on her hips puts your cock head just inside {LAST_NAME}'s ass.