For a good while, at least two years, we had entertained the idea of including others in our sex lives. Keeping it to a fantasy we, on a number of occasions, subscribed to swinger sites which seemed to enhance our sex lives by chatting to couples with the pretence of meeting them (something we would never do now). We communicated on a sexual level amazingly from first being together, free to tell each other what turned us on, my wife (F) was bi sexual when we met and was very open to me about this, she slept with her then only girl a week after our first time. This was discussed and she said she wanted it out of her system, was very forthcoming about it so I thought no problem, the fact that it turned me on no end also helped! We would fantasise about another girl in our bed and what we would all do, as we were chatting to couples the scenarios of that would also crop up and over time I started to get extremely turned on by the idea of her with other men. She said she never could but was happy to go with it in fantasy, this was fine for a long time. Eventually with all the fantasising she started to want the feel of another woman again, after a lot if consideration we re joined a site with serious thoughts of meeting, we got chatting to what appeared to be a very attractive, educated and wanting very similar things. Emails bounced between us for about six months as for one reason or another we couldn't meet. Finally we arranged it, just a few drinks In a bar to see if there was still an attraction face to face, personally I was ridiculously nervous but F seemed quite calm and confident, when we met I was instantly attracted to Sarah, id seen her pics so had a good idea but there is no substitute for in the flesh. 24 years old Petit with am amazing body, perfect pert breasts, long light brown hair with the look of her Eastern European origin, Dan was 17 years older but I well mannered and dressed guy who looked younger than his years. Conversation flowed easily with just the right amount of talk about sex and previous experiences, we had none but they had several. By the end of the evening we had agreed that in a couple of weeks time we would get together with a hotel for us all to go back to. Now here's the twist, all along this time I still fantasised about F getting fucked by other men, she would go out with friends on an evening and say,"shall I pull tonight for you?" Always in jest, or so I thought. One very innocent night she went to a gig with a male and female friend, of whom I knew well. I knew the guy, john, fancied F very much but was never threatened by this, F is stunning, an amazingly womanly 10/12 figure, dark shiny hair, her best feature besides her face is her perfect arse! Well just sitting having a drink at home I get a text, "do you still want me to fuck another guy"? I'd been wanking a little at home so was particularly horny so said yes, who? She said john! I was astounded, shocked I couldn't believe it, also hard as a rock! I asked how that had come about and she just said he was being flirty as usual and knew she could, I was concerned at first, she said she would just ask him and fuck him in his car and ring me so I could hear, eventually I thought why not, if I back down now I'll never go through with it. I was so horny, nervous, shaking almost uncontrollably but still hard as I've ever been. I got into bed naked so I could really get into it, my heart nearly stopped when I received a text to say you had a missed call, WHAT!!?? I've missed it and she wouldn't have know. Relief came over me when I noticed I had an answer phone message. I dialled, the first noise was muffled then a soft gasp like the noise she makes when she is touched, OH MY GOD I thought this is it, a louder moan followed by passionate heavy breathing, I could hear him fucking her faster making her moan a little louder as it went on, I was trying to picture how they were being fucked, I would find out later I thought. I Couldnt believe I was there listening to my wife full of another mans cock!! The noise went quiet and the message ended. At that point it heard the car pull up, still shaking and with a huge hard on waited In bed, F came in the house I demanded she come upstairs and at first scared her, she thought I was angry, I was dying to fuck her and hear what happened!! The last surprise was she had allowed John to cum Inside her, taking his condom off at the last minute, it had always been a fantasy she was filled with two men's cum but I never thought it would happen! She sat back and opened her legs so I could see her well fucked pussy, looked at me dirty and said," this is how I lay as he fucked me, now it's your turn! God know how but we fucked for ages, she told me how he had her in the car with every minor detail, I acted out all that they did, John didn't last long but I can understand as F must of taken him completely by surprise and he fancied her for years! I couldn't hold it any longer and pumped what felt like endless amounts of my own cum inside my filthy dirty wife! I have to say at that point my best ever orgasm! Turns out missing the call was a blessing, I wanked over the recording or listened to it while fucking F until the message deleted! This was my first ever story, if you want me to go on with what happened with the couple meet a week later let me know, any pointers greatly appreciated!