I noticed how the nipples quivered from her excitement, or perhaps her fear."Cross your hands behind your back," I ordered.I bound her wrists with an ...ld silk scarf of hers. My hand caressed her back and slid slowly down the firm curve of her buttocks. I could now feel, as well as see, her trembling."Are you afraid?" I asked."Very much," she said, her voice barely under control.I brought out my new acquisition. In France it was called a Prie Dieu.Imagine a chair, with a narrow, padded seat,. Even more so when he asked her to go into the bedroom and change. She found an expensive peignoir on the bed and came back wearing it and a huge smile. Her availability rapidly improved as subsequent dates were equally top notch.He couldn’t get a clue how much she was fucking other guys so he hired an agency to shadow her. They came back with an estimate that at least one guy coupled with her almost every day. Some days possibly more. He looked at the schedule they had compiled for the past. When she reached her twin's pussy, she flicked her tongue through her sisters pussy. I was in shock and awe, at what transpired before my eyes. Nadine’s head had rolled back, as her pussy was invaded by her sister’s tongue.Tasha wiggled her ass at me, as she invited me to put my cock inside her. It was an offer I couldn’t resist. I got behind her with my cock in my hand. I teased by rubbing the head of my cock through her pussy lips. She got frustrated, as I teased her. She pushed her ass back. She drove to her parent's house and ten minutes later she came out with the kids. Well, at least she wasn't doing it with the kids around. I waited until after eleven and then I went home.The next day was Saturday and the Barnum and Bailey Circus was in town so I took the kids and headed on out. As I drove I asked the kids if they had had fun at Grandma's last night. Little by little I got from them that they had been spending a lot of time at Grandma's. In fact, for the last two weeks they had.