"Keep your eyes on your sister," he commanded, pumping her fuckhole with a steady gait. "Tell her what Daddy's doing to you."

"O-okay Daddy... umph, oh... Daddy's filling me up so much sis..."

"Yeah? I can feel his balls hitting my clit," Stacy gulped between her huffing breaths, "And Daddy's cock, it's... it's bulging your belly against mine. Ughhh, its sliding so far up and up till it stops, and then back down and... Fuck!"

Robert pressed his cock back into Stacy, spearing into his moaning daughter with his member dripping with her sister's juices. Still he kept his other daughter filled. He shoved two fingers back into his mewling...