Ava and I were very familiar with the swinging and swapping scene. We had joined the life just over three years back and had been to four parties and had dozens of swaps. After our latest swap we were on our way home and I thought that Ava was dozing when she suddenly sat bolt upright and declared, "We need to go to an orgy." I asked what had brought this on and Ava told me that she was talking to one of the other women, at the last party which was two months back, and she told Ava about an orgy where she was right at the center of the action. I asked why bring it up now and Ave informed me that whilst she enjoyed this evenings swap it wasn't that satisfying for her. I told her I was sorry especially as I had particularly enjoyed Sandra, my swap. Then she informed me that there was a party in four weeks time that always ended in an orgy instead of swaps. I told Ava that it sounded good and if she wanted to go I was up for it. We arrived at the party and was told that we had to undress to join the party. It was a bit different from what we had done before but complied and stripped. Then we were led to a large room with twenty five plus couples already there. As we got a drink and found chairs two more couples arrived and joined us. Then eight single men arrived and made their way to the bar. I was a bit miffed as there was now more cocks than pussies. I got to find out why later. Then some dance music was put on and we were all encouraged to dance. Ava was grabbed and hauled away from me and I managed to grab a sweet looking blond girl and start gyrating on the dance floor with her. I was miffed again when one of the spare cocks joined us sandwiching the sweet young thing between us. Then I noticed some men laying gym mats on the floor around the edge of the room, and couples were breaking away from the dancing and starting to make out on the mats. I managed to wrestle the blond away from the spare cock and get her on one of the mats and start making out with her. Slowly all the mats were filling up with couples and some in threesomes. I could see Ava with the man she was dancing with. He was fingering her pussy and sucking her tits on some of the mats. She had a big smile on her face so I knew she was enjoying herself. Knowing that she was ok allowed me to turned my concentration back to the blond. It wasn't long before the noise of many men and women making love was almost deafening. I wasn't doing anything to reduce the noise level as I pounded the blond girl. She was a good ride and was quite vocal demanding more. It wasn't too long before I came deep in the sweet thing. As I went to get another drink I saw that Ava was on her second man and he was pretty close to coming in her pussy. I stood with my drink watching the action and the man with Ava coming in her. Then a gong was banged and three women untangled themselves and made a move to a large square of mats that had now been placed in the center of the room. Then I saw that one of the three women was Ava. The three women were sat in the kneeling position with their backs to each other and the eight men plus a latecomer joined them on the center mats. Then it started cocks were thrust in the three's mouths and two more were fondling the women's tits and pussies. My Ava was now at the center of what was turning into an orgy. It wasn't long before they were not just sucking but also fucking. One of the women was being used in all three holes at the same time. Ava and the other woman were fucking one cock, sucking a second and wanking the third cock. There were a lot of spectators including myself taking in the spectacle. The first woman was soon taking three loads, one in each hole. The men were soon replaced as were those that had finished with Ava and the third woman. I was stood watching with a very stiff cock as my Ava was taking her seventh or eighth cock of the evening. Then more people were joining them on the center mats and I found a woman's hand pulling me by my cock to the mats and in the next moment I was on and in her. From where we were I could watch Ava being serviced by the three men playing with her. I watched as they changed around and another one of them was fucking Ava. I came in the woman I was fucking and rolled off her. I was quickly replaced. I watch Ava serviced by all three men and then one more took a turn with her before she called time on them. One of the three original women on the mats had already quit. The last one was still fucking when Ava and I started to dress for home. On the trip home I asked Ave how many men had she fucked. She told me she had lost count, but she had enjoyed it and wanted to do it again some time. I agreed that I had also enjoyed it, especially seeing Eva with other men. That night changed everything, from then on Eva wasn't contented with just one or two men at parties. She wanted to be at the center of any action and preferably taking lots of cocks. I know that one night I saw her take nine or ten cocks and she still wanted mine when we got home. Ava went from the occasional swap to a hot, in fact very hotwife. How lucky am I.