Long ago they had switched to a "swinging" life style when their marriage had become dull and routine. And Carl took pride in the fact that Cindy was ...lways ready for sex, always in a receptive mood for him because she was always ready for sex, any kind, with anybody, at any hour, just like he was. He recalled with satisfied relish the mate-swap orgy they had been to on a ranch in a deserted part of Nevada just the night before they picked up Eddie, where they had spent many abandoned hours of. In the bed she lifted her own hand and slowly ran it up under her shirt and across her breasts smiling as she felt that her nipples were as hard in real life as they were in the mirror in her mind. The man behind her blindfolds her and then unties her from the chair. He leads her to a bed and lies her down on her back. She can’t see anything, can only feel and hear. He ties each of her hands to the posts of the bed, then each of her ankles. He sits beside her on the bed and she hears him. When the conversation paused, they all backed away and eventually continued on their way down the beach. I couldn’t help but continue to look at the young girl as they headed away from me. She had a firm little body, great thighs, and as I continued to watch her as she walked away, I said to myself, “Oh my god,” when I saw her plump little ass shake as she walked. I couldn’t believe what I was seeing. She let her bikini ride up her ass like a thong, letting her ass cheeks hang out of her little. She made her sit outside and walked inside the bedroom. I was watching her but pretended sleeping as usual.Now she knows that I am awake but still; started stripping down her clothes. She removed her pyjamas, her bra and her panty and started walking nude in front of me. I was shocked to see this because, usually she never stay nude so long when I am in the room even if I am sleeping. But she was acting strange and she even came so close to me that I was even able to smell her vagina. Usually.