I don't tell every story of our erotic life but this one has stood out like the others. We had been invited to a wedding down in Sussex and arrived on the Friday booked in to the hotel and met up with everyone Friday evening. A number of people were staying at the hotel and the function was going to be there on the Saturday evening. We had a few drinks with the wedding party and went to bed around 11 knowing we had a long day ahead on the Saturday after a long Friday. I woke on the Saturday to find Fiona kissing down my body and getting me very hard. It has been a long time since we had the fun of Fiona going off with another guy for sex. As she kissed my body she mentioned this and eventually straddled over my cock working it in to her pussy and talking about the time before when she had a sex with another guy. This really turns me on and we often chat about it as I cum. I agreed with her that it has been a long time and joked but also hoped that it might happen at the wedding. I did warn her though be careful because this is people I work with and obviously would not want anyone to know our fantasy. We got dressed and a number of the weeding party had kilts on with the Scottish connection, Fiona always likes me in the kilt whenever possible and this was an ideal opportunity. We had shopped a few weeks earlier and Fiona had bought a gorgeous red dress. We made our way on the coach with everyone else to the wedding from the hotel and enjoyed meeting all the family and friends of my colleague. My colleague is a keen rugby player and obvious a number of the team had been invited along. Once the ceremony was over we made our way back to the hotel and had some drinks and continued with the formalities of the day. After a lovely meal there was a disco in the hotel for the wedding party and other evening guests who arrived and made it a very busy evening. We had a number of drinks and then started to dance, Fiona was gorgeous in her short red dress and low cut that she would obviously catch the eye of any red blooded male in the room. The dance floor was very busy and suddenly I noticed one guy trying to dance with Fiona at same time as me, this was going on probably due to it being so busy. Fiona was asked to dance by a few of my work colleagues and I in turn asked their wives but I noticed this guy was giving Fiona some glances and she in turn was looking back at him. I went off to the toilet and left Fiona chatting with the other wives and on my return got distracted by my mate who wanted to buy me a drink at the bar. The place was very busy and I looked over to see Fiona at the table and to my surprise noticed she was not with the other wives but in fact dancing with the bloke who had been looking over at her and trying to dance with her earlier. Fiona danced at least 5 or 6 songs with this guy and clearly they were getting on and chatting a lot to the music, eventually Fiona excused herself and went to the toilet joining me at the bar on her return. I asked her how things were going and she said great and with your permission could fulfil your fantasy, I immediately felt my cock go from semi to fully erect in my suit. I asked how this came about. She said he had smiled at her a few times during the service in the afternoon and at the meal and said she duly returned the smile. He was actually a friend of my friend who was getting married. I asked Fiona if she was seriously considering making love with her new friend and she replied I will if you want me to. I nodded and said yes but how are you going to take it to the next level. She said he was staying at the hotel and she would k him if he was a true wearer of the kilt by not wearing anything underneath, I smiled and realised how good my wife can be at seducing men. Fiona went back to the table and I stayed at the bar to allow the guy to move on her again, he was dancing with a lot of other women and I was watching as Fiona was watching him. At least half hour had gone passed and he had not returned to Fiona and then I noticed him taking a seat beside Fiona and chatting. After a few moments they went to the dance floor and were dancing, chatting and clearly flirting. At around 10pm I noticed Fiona walk towards the area were you access the rooms of the hotel and her new man followed her after stopping at his table for a quick drink.....it looked like it was going to happen. I got the customary "I Love You" text from Fiona and this meant she was going for it and was too busy to text anything else. I had another quick drink and then thought I'd be better going to my room in case any of my colleagues asked where Fiona was. I walked to my room passing many other rooms knowing that it was likely my wife was in one of the rooms taking cock from another guy. At 11.45 I heard the door open in our room and in came Fiona. I immediately went over and took her hand and motioned to kiss her noticing her mouth area was quite red......LOTS OF KISSING I ASKED? Fiona replied "Yes, and not just his lips". I said should we go down to join the end of the wedding and she replied "No unless you want me to go for more". I immediately asked was he that good and she simply nodded. I got all the details of their time together and can safely say she got her question answered about what was under Gary's kilt