Suddenly she looked up in shock to see Billy standing at the open doorway to the bedroom, looking straight at them. Sharon froze at the sight of their son, but Howard didn't seem to notice, he continued to pound her from behind, his eyes closed as he let the lust take over his movements. Billy was completely naked and was busy stroking his big cock as he watched his parents fucking. His eye's locked with Sharon's as Howard's hard thrusts jostled her around and she almost came then and there.

Without a word Billy walked quietly across the room towards them, still not alerting his father to his presence. To...