I hear Megan

Megan calls out from the bedroom, "Sam? .. Dan?"

I act quickly and pull Samantha into the hall closet, by this time she has gotten the head of my cock lodged in her wet pussy. I close the door behind us as quickly and quietly as I can.

I hear Megan call out again as Sam begins to grind on my pole. "Sam are you out there?"

I hear the sound of a door and then footsteps in the hallway, "Dan?" Megan has to be only a few feet away from us on the other side of the closet doorway. I remain as still as possible, willing my wife not to hear us. Sam however is working up a good rhythm now grinding her pussy on my cock. It is surreal that my wife is only a few feet away and I am balls deep in her sister.

The next few moments as I listen to my wife listening for me and Sam, while Sam grinds on my cock like her life depends on it seems to last forever. Finally I hear footsteps lead away and a door close.

"Dammit Sam! This is not okay."

"Ha! You enjoy being my little bitch." Sam gives an couple of emphatic thrusts back into my cock, "I can feel it. Now shut up and let me get off."