My sister leaned over the back of the couch, and that tiny skirt rose up to expose the entirety of her round bottom. She reached back and spread her cheeks, and her glistening asshole was open and ready. I don't know if Dad had thought everything through on the drive home, but at this point his d**k was absolutely sure. It was entering Beth's sexy ass and we had a front-row seat.
"Oh, yes, Daddy," Beth groaned. "I've wanted you to f**k my ass for so long! Do you like the way it feels, Daddy? Is my asshole nice and tight for you?"
"f**k!" my dad gasped. I knew what he meant. If Beth didn't cool it with that dirty talk, he was going to come in a minute, tops. He started pounding her, and her moans were almost as arousing as the filthy 'Daddy' talk had been. "I'm going to come!" he bellowed
