She reached down and unzipped my pants, then took her skirt off. Her movements were rushed, urgent. She looked incredible in just her g-sting and I fe...t my cock leap into her hands as she reached into my boxer shorts. She let out a low moan and stroked me as we kissed. Her perfect tits pressed against my chest, and I reached down and squeezed her ass. She slowly kissed her way down my chest and stomach as she sank to her knees. My mind wouldn't allow me to believe what was happening, but it hit. It was the day of Curt’s twenty second birthday. He was barely a year older than the rest.The group was celebrating being friends for just over three years. ‘Body shots!’ Pamela shouted as she held up a bottle of tequila. She was standing next to Hope who was already lying on a long fold out table.Rick got the front row and Pamela poured the alcohol into Hope’s belly button. Some of the liquid spilled out and raced across and down her stomach and sides. Rick took a step closer and prepared. As she turned around I could she had ball gag in her andhad large black strap on.She demanded that I take the dildo from my sissy hole and sit up. "Nowyou little sissy suck my cock and make sure you suck it deep or you willbe punished more." With I took the cock between my lips and began tosuck. The more I sucked it, the she push it deeper into my mouth it wasmaking gag, and the more I gagged the more she pushed. I could herbreathing getting deeper like she was enjoying every minute of it.She. Nina held the open shirt to her and her breasts were visible under the transparent fabic. We started talking and I could not believe there is my sister half naked and talking and smiling. Finally she said "I better get dressed" and went to her room. My cock was so hard I thought it might break.The next morning Nina was leaving the bathroom after her shower and holding a terry cloth robe to her front as she exited. Again we started talking and I could see the bare skin on her hips and shoulders..