He knew exactly what the one sister meant as she spoke of the two siblings being very close.  Yes it was a unique ordeal, and yes it did happen in the world more than people thought.  Even he remembered fantasizing about an aunt when he was growing up.  The shear though that these two were able to enjoy it and get away with it made his cock jump a little.  At that same moment he felt the other sisters hand on hi thy slowly touching the tip of his member as pulsated once more.   His eyes left Amanda's and fell to Chrissies, when her hand was on his cock he winked giving the go ahead as he spoke aloud to both of them.<br/><br/>"What are we waiting for then?"<br/>