She squeezed my balls hard and gave me a stern look. "You've already cheated on your wife—with her baby sister, I might add. You're laying here, naked, getting off on me blowing you. You've groped my tits, sucked my nipples. Face it, John, you might as well stay and enjoy it. It really can't get much worse for you." She softened her look and added, "besides, aren't you having fun? What's wrong with a little fun?"

She began to pump my cock with long, strong strokes. As I moaned, she quickened the pace. "Look at me," she said. I had closed my eyes, reveling in the attention she paid to...