My step sister and I have a strange relationship, we are "really close". Recently she had to get a pregnancy test but instead of getting rid of the test in the outside trash she threw it away in the kitchen trash. Our step dad found it and confronted her, he demands to know who she was sleeping with that she would need the test. Our step Dad calls me into the room, he knew more then we thought... He knew I have been fucking my step sister, now he wants to watch what we do when we are alone. Our step Dad sits there as I pound my step sister's tight pussy!