I - naturally, I think - was a bit shocked, but covered it up by laughing and saying, "Gosh this is so sudden!" He told me he was serious and that she...liked to be tied up, and used for hours at a time by him and now wanted to experience the same thing with a stranger.I asked to talk to Debbie alone, and he said, "OK." (I wanted to be sure it wasn't just his fantasy and not hers. She came over and was obviously very shy. She is a bank manager - charming, lovely, and very nervous. I talked to her. She did ask me to swap towels because the one she was lying on was now so wet that it was distracting. Furthermore, she wanted to catch it before she wound up sleeping on a wet spot tonight. I had no trouble sympathizing with the wet spot aversion, so I swapped towels for her and dropped the wet one on the floor.We got into position, and I slid all the way home with my initial push. That initial act of penetration was something special to me, and I kind of missed having to work my way in, but I. With that my hands rush the the girl face sitting on my and i brought her down in front in a doggy style position and i started eating her ass spreading her cheeks wide as i could, then i felt a hand grab my throat and another set grab my balls hard and a whisper came to my ear so soft, and sweet i would have never thought it would be a threat, she said we are in control not u, try to take control we hurt u. then a sharp cold metal brushed the lower bit of my balls grazing ever so slightly, and. I still didn't trust her, but she was proving to be such a valuable asset I couldn't possibly have cut her out. When Wendy got home she stripped naked at the door as Jody had. She placed a collar around her neck to show her subservience to me. I would have liked to put her through her paces but her holes were too swollen from the previous day. As I related the days activities to her I had her lick my asshole, occasionally quizzing her to make sure she was paying attention. I forbade her.