It was hotter and moister than any woman I’ve ever experienced before. I could barely function. It was a natural reaction to start sliding in and ou.... I felt so primal – like a fucking cave man taking my woman and having my way with her. She also had something I had never experienced before – muscles. With each stroke as I slid out, she would squeeze her pussy and choke my cock. She could make her pussy so freaking tight it was incredible. We never said a word to each other. It was all body. She wishes she could ease the chain down but Master would be certain to find out, he always does, and that would be more strokes. Now she can slide the fabric of her thong down the slave chain, ease the ring and key through the slit and finally put away her underwear, halter in drawer, thong in laundry chute; it's much too wet to wear again without washing. Lucky Master has permitted her to make several dozen thongs so she can wash them once a week and still have an ample supply. Last of the. Stood there waiting. I was afraid and excited, both at the same time. What if I'd guessed wrong? It was possible that I was kidding myself here. Was this like an ant trying to rape an elephant? Every second that I waited seemed so much longer than that to me. By the time that I'd begun to be convinced that I had been right, and the voice would have to deal with me on a more equal footing, I started sensing that I was all alone again. I couldn't feel his presence with me at all. Silence. Every inch of her body turned me on. I could of kept going until we heard a knock on the door...I stopped and stood up. Karen had heard it too. She smiled at me and put a finger to her lips, begging for me to be quiet. She reached down and pulled my cock toward and then into her. We kissed and I pumped slowly into her. I looked into her eyes. They sparkled as I pushed into her over and over. My right hand under her left leg, my left hand wrapped around her body. Karen's hands played with her.