Went to naked night at a club in the woods with my longstanding slim girlfriend of 20 years. She likes to drink and can drink as much as me so we got ourselves merry in our cabin before heading off for the evening at the club house. I had just a sarong on whilst she was in her sexy see thou bra and panties with a brown see throu mini dress over the top. She has a lovely slim figure. The evening was great fun, dancing to the tunes and drinking together. A guy approach to sit with us early on but she declined. I was not keen as I was very nervous. As the evening wore on I got good and drunk and relaxed. Later on I realized through my drunken haze that she always ended up dancing with a group of 3 guys whenever we got up to dance. Two were apparently gay and engaged me in entertaining banter whilst the other guy was paying her more attention, as was she him. It felt weird seeing my girlfriend in sexy gear flirting with another guy but I was really turned on by the fact he was really attracting her. I was well drunk and when goaded by the 2 gays took off my sarong and started dancing with them naked. I have never been into the gay thing but dancing with my cock out with my partner dancing with this other guy still with his short towel on was liberating. I guess I had become subservient to him. I carried on dancing as she went and sat with him. I was so turned on seeing her close to him with them touching in the dark light with me dancing away naked on the dance floor. I realized I wanted him to have her. I sat down to drink and she said we should go back to our cabin. So we went back, me following behind having given him the key. In the cabin he took charge and with my partner on the bed proceeded to strip her. I watched in disbelief as he pushed his hard upcurving cock straight into her without any problem and listened to her moaning like crazy as he pumped her with her legs splayed. She has only been fucked by someone else once before 20 years ago. I knelt behind stroking my cock and could see her brown arsehole as he pumped away. I must admit I was drunk and thus bold enough to take a picture of him riding her from behind missionary. He told me not to take any face pictures but that was it. So I took some more. He came in her twice in the missionary position with her really moaning - something she has stopped doing with me. She turned over and he fucked her from behind. And then she said he could fuck her in the arse, she has always been ok with this with me. He could not believe it but he did and came pretty quick. I could not believe how eager she was to please him and pay no attention to me so I ended up laying on the bed almost falling asleep and they continued. I was pretty gone and only noticed the end bit when I looked quietly around and saw her on all fours in front of the mirror masturbating so he, sitting on the side of the bed, could watch it all stroking himself until he came in her mouth at the end. He headed off at that and she with him. I watched her in his cabin from my window. He had lost interest I guess, he was worn out. Whilst our room had had a red top over the side light to keep everything dark his was bright and bare. I saw her undo her sarong at one point and open it so he could see everything but he did not bite so she returned shortly later. She wanted sex and started on me saying when I licked her she was imagining him. So I told her if you really want him why don’t you go and ask him. And she did. Back upto his cabin. Bright old side light goes on which turned me on as he could see absolutely everything now. I ran up behind the cabin and listened as her talk went quiet and the moaning started again. He really fucked her hard from what I could hear as the curtains were closed. But I heard oh yes cried out for some time. And at one point later on I heard him command her to hold her cheeks apart so he could watch his cock go up her arse. They both came shortly after that as did I. Returned back to cabin –she came back later. Great sexy night. Pictures to prove it. And of another fella who took her the next time we were up there. I loved it and would love another session but always struggle to be really submissive unless drunk and so find it difficult to set up with another guy. Also the club is closed at present plus safe sex is a very important factor. She pretends not to be interested until the event is happening and she has had a bit to drink to relax her then she really gets into it.