It was quite a few years back I was travelling interstate to Melbourne. As was often the case I was alone and bored so I went to a bar and was having a quiet beer or two watching the footy on the big screen. There were about another dozen or so other people there, a few couples and a few small groups. Whilst sitting alone a guy came up to me, put his hand on my shoulder and much to my shock and amazement asked if I'd like to fuck his wife, pointing her out across the room as he did so. She was approximately 45, slim, short to medium height with sandy coloured hair, small breasts and while not a model she was certainly attractive in a homely kind of way so I was interested in his offer and I said yes. He introduced himself as James and told me her name was Vicki, but then explained there was a catch. It turned out to be an equally shocking, no fucking of Vicki unless James can also fuck me. Having never dabbled on that side of the fence I was initially somewhat speechless. I looked at James and tried to mentally picture it, I wasn't necessarily attracted to him, as he was slightly taller than me, slightly overweight, probably 55 with grey hair and beard, not at all what I had fantasised about. But having always been curious I agreed to at least go with them to their hotel room. Once inside there was a little groping and kissing before Vicki suggested we hit the shower. It was a bit of a squeeze but the three of us made it in, I was soaping up Vicki while James soaped up me. The feeling of his thick 7 inch hard cock pressing against my ass very soon had me forgeting my earlier inhibitions. It felt so wrong and yet so right. Once all showered and dried off we adjurned to the bed. While I put on a condom James started fucking Vicki immediately in a slightly upright missionary style so once I was ready I put my cock in front on James which he quickly swallowed. Again it felt so wrong, kinky and odd to have a guy sucking my dick for the first time but he did it very well, so well in fact I was ready to blow so I quickly took it away from him. Now moving up the bed I gave it to Vicki and she was equally masterful with her mouth even though by now she was getting a serious pounding from James. At this stage James suggested a change getting his cock out and condomed it up for me to suck while Vicki played with her clit watching us intently until she came. I enjoyed sucking my first cock and while I tried to go deep into my throat I did struggle, I probably need more practice. During my blowjob James played with my ass applying some lube and inserting a finger, I knew what was coming soon. James said to start fucking Vicki which I didn't hesitate to do and then James climbed on top and pushed and inserted the tip of his lubed cock in my ass. Intially it hurt a lot and I forgot all about Vicki under me but he took it slowly and gentle eventually getting it all in and it was starting to feel good. At that moment I couldn't believe where I was in this amazing delicious sandwich given I'd been all alone in a bar an hour earlier. Now that I'd gotten used to that big cock he started to go to work and I started to go to work on Vicki. Trying to match the thrusts was initially difficult but after a while I struck a good pace and was really enjoying the feeling of that cock in my ass looking down at Vicki as she alternatively smilingly looked into my eyes and at her husband on top of me. It was so hot! I only lasted 5 or so minutes before I shoot off what was probably my biggest orgasm ever. Vicki slipped out from under me and again watched and masturbated her clit while James really started to let my ass have it. After another five or so minutes I had to call time as my virgin ass was getting pretty sore and I still needed to be able to walk the following day. After I cleaned myself up and came back in the room they were both fucking again this time doggy style. My cock was still hard in all the excitement, so I put on another condom and Vicki took my cock and sucked it expertly once more. James asked if I had any other threesome fantasies they could help fullfill while I was there. I'd always wanted to do a regular DP but unfortunately Vicki didn't do anal, James suggested we instead do a double vaginal. Vicki was super excited for this so we quickly got started. The feeling of the two cocks rubbing and sliding against each other in Vicki's super tightly stuffed vagina was amazing. Vicki clearly also loved it as she was very quicky cumming intensely. On her second loud trembling orgasm I could feel James's cock twitch and spurt as he moaned and feeling that I shot off my load as well. After that we said our goodbyes, unfortunately they didn't want to exchange phone numbers as they wanted it to remain totally anonomous. Until now I've never told a soul, and never had another Bi experience. Hopefully it will happen again someday.