With my eyes closed it was easy to imagine Helen's tongue swirling around my cock as Ellie mimicked her grandmother's moves perfectly. She was acting out every detail I had given her during our incestuously lustful weekend. In no time at all the pressure was building and I arched my back, pushing my cock farther into Ellie's mouth.

I didn't even bother to warn Ellie this time. I didn't think there would be that much and she was getting adept at reading the signs. She slid lips back at precisely the right moment to let her cheeks fill with my hot cum. I jerked and spasmed as she pumped and...