My wife and I went to a swingers club after we became empty nesters, more out of curiosity than anything. We had been to swingers parties before and she had been fucking other guys since before we were married, more or less with my permission, so we expected for the night to be fairly routine and we decided in advance we were there just to observe and enjoy each other. After getting an introductory tour of the place we settled in and enjoyed some overpriced non-alcoholic drinks (no ******* license) and watched the interraction in our general area. After a bit I got bored and said we should take a look around, but my wife said I could but she was fine and maybe she would dance a bit, since I didn't really dance. After I wandered around a bit, stopping to watch a very attractive blonde doing a gang bang on a small stage with seating all around it, I returned to our place only to find my wife missing. I assumed she was dancing, but when I couldn't find her on the dance floor and she had been gone long enough it wasn't possible she was in the restroom, I went to look for her. There was an area that had a plexiglass wall and several people looking into it, and that's where I found my middle aged wife, flat on her back with her legs in the air with a black man maybe half her age plowing her hard. I stood transfixed and heard a feminine voice say "She's so lucky." and turned to find a very fine looking woman in her 20s next to me. I said, "That's my wife." and she looked me up and down and her hand went to my crotch. Looking at the size of the cock fucking my wife, she smiled, "Oh, she's really lucky then". I felt myself blush and my dick throb at the same time. Soon enough, my wife and her lover were finished and he got dressed and led her out with her still naked. My wife introduced me to him, but he ignored me completely and handed her clothes to an attendant, whispering in her ear. She nodded and headed off with my wife's clothes. My wife looked concerned and the man said "You can get them back at the door when you leave. You won't need them until then." With that, the three of us went to our table and sat, my wife between us but much closer to him. At the table he finally looked at me, "This is some fine pussy and it's mine tonight, understand?" I looked at my wife and she had an eager look on her face and, since this was a little unusual but not completely new to us since we had been involved in cuckolding, I nodded my agreement. With that he took her hand and led her to the dance floor, where she stood out as the only completely naked woman dancing. Obviously, there was no disguising where his hands went while they danced. We had planned to be there for about an hour, but ended up being there until the place closed at 4am. During that time, my wife spent a good deal of time with his cock in her mouth, which she liked because the condom rule apparently didn't apply to oral, or the rules were lax. After all, sex was only allowed in designated areas, but when he bent her over and fucked her standing up on the dance floor no one complained. He took her to the designated sex areas and randomly offered her to men with the expectation she would fuck who he told her to fuck. My wife, who is usually very discerning about such things, eagerly complied, even "dining at the Y" a few times, which she hadn't done in years. At the end of the evening, we had to wait until the crowd had trickled out for my wife to retrieve her clothes. Watching her dress standing in front of the exit door being held open by a bouncer may have been the most erotic moment of the night.