She started to pull back."Try to swallow"She did her best but some of my come ran down her cheek and chin.I moved back in and she quickly came; her le...s bucking up."That's just as good as I hoped" Nikki exclaimed.She got up and headed towards her roomShe looked back"Can we go all the way tonight?" Sure."I went to the gym and worked out and bought some groceries. When I got home Nikki had left a note that she had gone to the beach.We ate dinner together and I told her I needed a napI stretched. It was just about dusk and I noticed the lights go on in the basement. So I looked in the window my sister was taking her night shirt out of the dresser. She had her back to me and she took off her close, panties and all. Now my sister I no skinny minnie, she is quite voluptuous and their was her ass, alabaster white. I was mesmerized at the sight of her ass. I could also see the side of her boobs, they were DD’s at least. I was getting hard as a rock now. She turned around and I was concerned. Following the route he established Adam piloted the Mustang to an older subdivision on the outskirts of the city. He found the street and scanned the houses for numbers. Then he spotted Kara’s Buick parked ahead of a silver, late model Lincoln with New York plates sitting in the driveway of a small white two-story colonial. He pulled into the drive and parked beside Kara’s car.Adam rang the bell and Kara answered. He regarded her in a black skirt and white blouse. “Hi, beautiful,” he said. “You. 'I think my mother's due', I started to comment, but he cut me short, shaking his head and adding, 'She and your father just left for a walk'.I felt my stomach muscles tighten, there was a knot in them, more from his presence, as a sexual urge from deep within was engulfing me, he must have sensed this as he crudely moved the wooded phallic object between his fingers as if fucking them, 'This make you feel really good in your pussy', and he sniffed the air as if trying to smell me.I remained by.