So this a true event and happened around this time last year. I was one of 2 groomsmen for my friends wedding whilst his brother was his best man. My girlfriend was 26 whilst I was 27 at the time. She is a size 10 with average size boobs and a curvy well toned bum and well trimmed and defined legs. And may I add she lucked a million dollars on the day in her mid thigh dress and heels and obviously attracted a lot of attention which we both liked. I've always, like many men fantasised about a threesome and seeing her get fucked by another man. Weve always been quite experimental in the bedroom and shes very willing to try new things. The one thing that's a no is an anal creampie, she does enjoy anal though after a few drinks to relax her. This is why the turn of events is more surprising. As you can imagine when your best friends are getting married it the drinks are flowing for all guests. Especially myself, my girlfriend and the bestman, Alex, who somehow made it onto our table and was very chatty with the missus not surprisingly with how gorgeous she looked. Now I've know alex for a few years, through the groom. He was 46/47ish at the time and very overweight, to be fair to him he lost a few stone for the wedding but was still about 22 stone and not the tallest either. The 3 of us were very chatty and as more and more drinks got knocked back the chemistry between myself and the missus was getting more and more, we both get very horny after a few drinks. I had my hand on her thigh and was slowly moving it higher and higher moving her dress up to basically her thong line. Alex was sat the other side of the missus whilst this was going on and seem transfixed on her well tanned legs and why wouldnt he be. After a few shots we were playing a little truth or dare game in which Alex revealed he hadnt been with a women in about 8 years after he split up with his ex he piled the weight on and lost all confidence in himself. Anyway, as a groomsman it was my duty to assist with some of the tasks needed in the evening along with the day. The presents table was starting to pile up so I went off to the bar where the two keys for the bridal suite were kept and collected as many of the presents as I could, in the meantime the missus had come over to help and off we went up to the suite. We had a quick noisy around and it was a beautiful over 2 floors and a lounge area where the entrance to the suite opens up to. Jokingly I asked if she fancied a quickie and without any hesitation she dropped to her knees and started to unbuckle my belt and trousers. I was quite apprehensive as I knew there was a spare key downstairs and anyone could come up, imagine if it was the bride and groom and they caught us in their suite. But whilst all of this was going on in my head she has already got my cock out and was starting to suck it hard. At this point I just thought fuck it and relaxed into it and moved to the sofa to sit down. She was now getting it very wet and sloppy and sliding it down her throat which she loves to gag on. I couldnt keep my hands off her, I stood up and pushed her over the sofa and started to taste her juices, I slowly licked her from behind then caressed my tongue around her arsehole which she absolutely loves, she was starting to moan with excitement. Then suddenly we heard to key in the door and the handle turn, surprisingly she wasnt fazed by it and she orgasmed with a loud moan at the sheer thought of being caught there was defintiely no hiding now. In walked alex with another handful of presents, possibly the worst scenario I've been in for awkwardness. There wasn't a word said, he just came in, put the presents down, locked the door and came over to the sofa unzipping his trousers on the way. I thought it was a joke and the missus would get up and leave with embarrassment I was stuck in 2 minds for us to leave but on the other hand I kinda wanted to see her be fucked by someone, I didnt have an obese middle aged man in mind but nevertheless it was still a cock and a fantasy weve both talked about and got excited about. Within the 20-30 seconds of being in the room he had already unzipped his trousers and pulled out his cock and walked straight over to the missus and all he said was open that mouth of yours. There was me in absolute amazement rimmimg my girlfriend whilst she was taking practically a strangers cock in her mouth and getting him hard. It did take long for him to get hard as you could imagine for a man who's not had any interaction with a female for many years. After his opening line he was surprisingly quite caring and considerate towards her. I could tell he was desperate to be inside of her so I offered him her pussy which without a moment's thought he snapped my hands off at the offer. We swapped positions, whilst she remained on all fours he slowly slid inside of her with an almost instant orgasm from the missus. She was in absolute heaven as was I seeing another man inside her pleasuring her. We all got into a good rhythm whilst spit roasting her she was deepthroating my cock to the point her eyes were starting to water. What happened next to my shock was he asked if he could go in her bum, without saying a word as my cock was in her mouth she placed her hand on his cock and began to position him at the entrance of her arse hole. His cock was wet enough from her juices to slowly enter her arse, I couldnt believe she was not letting a stranger to her, enter her bum. It was like something had taken over her and she had no thought process. It didnt take long before he was in full rhythm and abusing her arse but she was absolutely loving it asking for it harder and deeper then out of nowhere he announced he was about to cum, she stopped sucking my cock and pulled him closer behind and demanded he cum inside of her bum. I was I'm absolute amazement as she doesnt even let me empty in her bum, I have to pull out and empty over her. A few very load grunts by him and stiffening up he shot his huge load inside of her arse to an almost synchronised orgasm from her. This was too much for me to take I quickly moved behind her and kinda shoved him out the way to admire the bucket full of cum drip out of her arse hole. What a beautiful site. I quickly entered in her pussy and without any momentum shot my load inside her. It was a beautiful moment seeing both her holes oozing out cum. One by one we went to the bathroom to clean up, me and Alex both stopped her from going to clean up, well alex did, by shoving his fat tongue down her mouth whilst I was cleaning. There was this obese middle aged man, just cum inside my beautiful well toned and tanned mid 20s girlfriend now also passionately kissing her right in front of my eyes. I have to admit I absolutely loved seeing it. He demanded she wasnt allowed to clean up or put her thong back on as he wanted to keep it and he wanted to see the cum slowly drip out of her throughout the remainder of the night. She again willing obliged, to my anger as the underwear set she was wearing was my favourite and quite an expensive one I treated her to and now this dirty fat old man is going to be sniffing the thongs. As we were walking back down to the bar you could hear the squelching between her legs and her mid thigh dress it wasnt long until droplets of cum were visible on her tanned legs and it was a beautiful site to see. It was at this point she made me aware that she had planned that to happen with alex when I went and got the key at the bar as she felt sorry for him not being with a women for so long and him having low self esteem with his weight and she wanted to be the one to give him the pleasure. To this day she still hasnt let me empty inside her arse. That lucky fat bastard doesnt know what he got that day. I wish I was able to upload the pictures and videos from this.