I've always been interested in doing a woman's ass, but never had a chance. My wife, Cindy, has a great ass, so round and smooth, but she always said no any time I suggested we try it out. But that never stopped me from bringing it up since she *could* change her mind. Well my last birthday we got in bed in the evening, and we were definitely getting ready for sex, and once again I suggested that she try taking it in her ass. And lo and behold, she agreed! I couldn't believe it! I immediately got hard, and climbed into bed. Cindy just looked at me with a sly smile as she slipped into her nightgown, and climbed in with me. I had my K.Y. Jelly handy as I had forever, and we turned out the lights. We started kissing in the dark. I was so turned on I couldn't believe it. Cindy finally broke the kiss, and turned around so we were spooning under the cover. I stroked her body and reached for the K.Y. Jelly. I fingered her nipples, then fingered her cunt, and then her rear hole, and started applying the lubricant. I heard her giggle a little and she wriggled her rear for a second. "Are you looking forward to it?" I could hear a grin in her voice. "I do believe I am" I answered as nonchalantly as I could manage. "Well, you can do it tonight, but I'm planning on getting compensation in the morning," she said and I could still hear she was almost giggling. "Sounds good to me" I said. I didn't think too much about the compensation, but for this, I could do anything she was likely to desire. I slipped a finger into her lubricated rear and worked it in and out. She wriggled again, seductively, and I couldn't believe how much she was into it after always refusing. I worked a second finger in, and a third. "Mmmm" she murmured. I slipped them back and forth, then drew them out and lubricated my cock. Was I hard! Finally, I put the head of my cock right up to her rear hole and started pressing, gently at first. She became perfectly silent--I wondered if she was even breathing. I increased the pressure and finally popped the head in. I heard her breath catch. It was the first indication I had that this wasn't just a little joke for her. I pushed my cock in, slowly and she groaned. I couldn't tell if it was a groan of pleasure or not. I kept pushing until my whole rock-hard cock was in her to the hilt, and I pulled her rear to my pelvis as hard as I could. She was breathing unevenly, sometimes vocalizing little grunts. "You like?" she asked. She had trouble saying it, with her breathing. "Yes!" I was breathing so hard that I was also having trouble speaking. Suddenly, she started pulling and pushing, forcing my cock in and out--it was like she went crazy. She was singing a note. I started fucking in earnest, my motion opposite hers. She grabbed my hand and pushed it to her cunt and I fingered it as best I could though I was quite distracted. She pulled the top of her body away from me and her whole body was writhing. She was breathing harder, and vocalizing with each breath. Finally, she stopped moving back and forth and pressed her rear to me hard--I was still fucking, but my cock wasn't going in and out so much because she was slowing down and following my motion. She yelled, and I came. And came and came--I don't remember ever coming so much. Finally we wound down and I said "You *liked* it, didn't you?" "It was your birthday present" she said in a gasping voice, still out of breath. There was no more giggle in her voice. I guessed she wasn't going to admit she liked it. I was exhausted and soon was asleep. I awoke, and couldn't move! Or talk! It was daylight. I realized I was tied up--or rather tied down, spread-eagle but face down in the middle of our bed! I was gagged too, and naked! I looked around as well as I could, but Cindy wasn't around. There was nothing to do but wait. Then I heard the bedroom door open. Cindy came into view. She was fully dressed, in jeans and a top. With her was some guy! "Now it's time for my compensation," she said with a grin on her face! I looked at the guy: he was huge and obviously very muscular! He didn't say anything, but immediately started stripping! And I started pulling as hard as I could on my bonds, but no dice. Trapped! In no time, the guy was nude. His cock was huge, and growing hard! He grabbed the K.Y. and stroked his cock. Then he walked behind me where it was hard to see him! I couldn't believe the position I was in. I just lay there, waiting. I felt his fingers on my ass and the coolness of the lubricant. He wasted no time, and was pushing a finger into my rear in no time. In a minute, I felt him on top of me and felt his cock on my rear hole! Cindy was next to me, crouching down just a little, watching my face. She was smiling! I turned my head the other way. The cock was inside me and the guy was fucking away. Cindy approached my view: she had walked around the bed, evidently, to watch my face again. Again I turned my head away. The guy was in me right up to the hilt. He was so big. I no longer worried about Cindy. He alternated between pushing in hard, and then fucking me fast. Then he went even faster and I felt him come. It was unbelievable! How could I have ended up in this position? The guy dressed and left, and finally, Cindy untied me. As soon as I got the gag off, I was yelling my head off at her, but she stood up to me and told me I'd earned it! Finally, I calmed down... there was nothing I could do now, and she had me: she had told me I would pay. I still didn't talk to her much the rest of the day. That night in bed, she *told* me we were going to do our little exchange again! I told her no way, and she started wriggling her body and then grabbed for my cock! I *knew* she was trying to hook me again. I jumped out of bed, and headed for the bedroom door. I opened it and walked out... bumping right into the same guy who had been there that morning! He grabbed me and pulled me back to the bed. Cindy turned the bedroom light on, and soon the guy had me on the bed and Cindy was sitting on me while the guy pulled off my pajamas and tied me face down on the bed again. Soon I was in exactly the same position I had been in that morning, and the guy was stripping again! And I need not tell you the rest--it was a replay of the morning. When he was done, he relaxed for a little while, with Cindy still standing there, watching us. It was obvious she had enjoyed the show. Soon the guy stood up again and I noticed once again how big, and tall and muscular he was. He walked up to Cindy, completely nude, and sort of crouched down and they immediately kissed! They stood there, locked in embrace for minutes, obviously kissing open mouthed! When they stopped, the guy quickly pulled off Cindy's nightgown and turned her around and pushed her body down so she was supporting herself on her elbows on the nightstand. Then he proceeded to fuck her ass, right there in front of me! She didn't do a thing to stop him, and soon he was fucking away and she was yelling "Yes! Yes!" every few seconds. This couldn't be happening! Well, the guy, Brent, lives with us now. We are both always nude and waiting on him. We both suck him whenever he feels like it, and of course, he takes our asses just about every day. He brought his girlfriend, Cathy, to live with us too. She watches him do us and orders us around, but she doesn't do anything sexual with us. Except that she loves to whip Cindy's ass with a belt.