We have been married for 15 years and wife never had many partners, we had a good sex life she would allow me to play with her tits and let me expose them when we were out walking or when we parked up. I loved it when she let me expose her when we were outdoors and I would get her to wank me and I would cum on her tits, it was so horny doing this and I would try and do it whenever I took her for a night out, it got to be a regular event and I would try and take it a bit further each time over the years i had only been able to get her naked twice when we were in the car parked in car park beside a wood when we were on a holiday. I tried a few other times but she would never let me strip her naked, it was sometime later when we had been to visit a friend and she had a few glasses of wine as I was driving I as sober but didnt think anything about it till she was getting into the car and our friend was helping me get her into the car and she flopped into the seat and her skirt ended up showing him her white pants and i saw his eyes pop I quickly pulled her skirt down and thanked him and left. I could not get it out off my mind and found it had made me hard she was sort off asleep and i reached over and pulled her skirt back up and she never moved so I pulled it right up to her waist reveiling her pants I thought wow if anybody past us what a view they would get so i opened a couple of her blouse buttons so you could see her bra she looked so sexy i wanted to fuck her and started to think where I could stop. I remembered a quiet carpark were hill walkers parked to head into the hills for walking It took me about 30 min drive and while we were driving i had managed to unbutton all her blouse and she was laying there in just her bra and pants I parked away at the far end so i could see if anybody drove in when i stopped she woke up and asked where we were i told her how horny she had made me letting Ian our friend see up her skirt when she got into the car she didnt believe me I told her what had happened and was kissing her and pulling her pants down she was saying how can she ever face him again I said he will want to see more than your face the next time I bet. I had my hand in her pants and she was so wet with all this talk I kept at it saying she had ment to let him see her pants and tease him se seemed different and didnt stop me pulling her pants off I just kept going teasing her saying how she even had let her legs open to give him a good look i had her stripped down to just her bra and told her take your bra off and show me what you were going to show him she pulled the straps down and uncliped her bra I stripped all my cloths and we were both naked when i noticed lights of a car coming I didnt want it to spoil anything so I started to suck her nipples to prevent her looking back. I was so far gone now with having her naked I didnt want anything to spoil it now I kept playig with her nipples and her clit getting her more in the mood than I had seen her for ages she had her eyes shut and breathing hard now and was about to fuck her when i noticed someone at the window looking in and here was my wife naked laying there al exposed and it was making me more hornier than ever before and wanted him to see how sexy she looked I just sort off displayed her for him i opened her legs up and pulled her arms up and started to kiss her so he could get a good look at my wife. I started to talk to her saying how bad it was to have showed off her pants to a other guy and how he would love to see her like this all naked and laying with her legs wide open so he could see her pussy when I touched her she was dripping wet this was so erotic doing this she said she was wanting me to fuck her and to get on top now I wanted to keep showing off and said I wanted to get outside and fuck her as it was to cramped in here she must have been as horny as me and agreed and said right ok I opened the door to the opposite side from where the guy was she still hadn't noticed him. We got out and i had her up against the side off the car and she was so horny her nipples were twce there normal size we were kissing and I was trying to get into her pussy we were rubbing each other all over when I told her i think we are being watched she held on to me saying no no who is it I said it is only a old horny guy wanting a thrill she said good good let him look I pulled her to the front of the car and turned her round so I could fuck her doggy style and so we could both see the guy watching us he had his cock out and started to come closer he was right opposite us and before I knew what was happening he was standing beside us feelng her tits and saying how sexy she looked and for me to fuck her hard I shot my load like never before he must have notice I had finished and semed to push me aside and was inside my wife like a shot I dont even think she new what had happened here was a stranger fucking my wife for all she was worth and i was watching it happen they both seemed to cum at the same time she could hardly keep standing as he slipped out off her wiped his dick on her ass pulled his trousers up and said thanks and walked off. We both were standing there and I was hard as a rock again and layed her back over the bonnet and started to fuck her cum filled pussy telling her wat a slut she was letting a stranger fuck her she was saying yes let him fuck me again let them all fuck me I was wishing there were more guys about and noticed our friend was still sitting in his car watching us I asked her are you sure you want him to fuck you again she said yes whatever you want him to to me I waved over to him to come back He got back out off his car and came back I told him she wants you to fuck her again he was out off his cloths like a shot his cock was sticking out like a barge pole he told her to get down and clean him first then he would fuck her I watched as my wife crouched down and take his cock in her mouth licking and sucking him her legs were wide open I could see all the cum dripping out of her cunt he let her suck him for ages then pulled her up told her to lay down on the ground and spread those legs which she did he got on top of her and started to fuck her like mad I thought he wanted to split her open after about 10 min she had cum over and over he pulled out and cum all over her body he said this was the best time he had ever had here and how great a wife i had to to all this I got on top of her again and fucked her for the last time that night, we all got dressed and went on out way. Once We were nearly home she started to cry saying what had she done and for to forgive her i told her it was the greatest thing we had ever done and i loved her for allowing it to happen, I was a bit grateful that there was not a lot of other guys there I dont know what i would have let happen we both agreed we enjoyed it and want to maybe do it again.