First Threesome Odd as it Was SeXStoRY

I had always fantasized about a threesome with a guy and his wife. I met this couple online and we chatted a few times and eventually they agreed to meet with me. They were fortunately vacationing at a cottage a not far from where lived so we agreed to meet at a local bar and see if we hit it off. Their names were Bob and Alison and we did hit it off and they invited me down to the cottage. It was a beautiful spot on the lake and we had a beer and talked about lots of things including music , what their relationship was as they were not married. They were actually business partners who had started dating and were trying out things to spice up the relationship. He looked about 50ish and she looked early 40's maybe late 30's. He was normal build and height but she was quite skinny. After a while Bob suggested we go upstairs to the bedroom and this was where the "Odd" arrangement happened. Alison and I stripped off and climbed on the bed but Bob just took his cock out of his shorts and stood watching. I asked if he was joining in and he said he might but he just wanted to watch at present. Alison and I started kissing and caressing each other and I quickly starred sucking her pussy, which I love to do. She was so thin with small but perk breasts and she seemed to be enjoying what I gave her. I glanced at Bob and he was playing with his cock as he watched us. Alison took my cock into her mouth and we rolled into the 69 position and continued to suck each other. We kept this up for about 15 minutes and I felt guilty so I asked Bob to come closer and I got Alison to suck both our cocks. He seemed to like it but didn't go any further. Both Alison and I were ready for more so I lay her down, spread her legs and slowly entered her. It felt a little strange as I had never been with someone so skinny but I soon warmed up to it and her push was just as good as any other I had had. We fucked for some time changing positions from on her back to doggie style and her on top. She groaned as we fucked and eventually I came deep inside her. I had watched Bob off and on as we fucked and he masturbated the whole time and he came just before I did. We went downstairs, after we got dressed, and had another beer They both indicated they enjoyed it and she saw me to the door and gave me a big kiss and thanked me as I left. We met once again a number of months later and this time we just stayed in the living room of the cottage using the settee. Bob again just watched as Alison and I got undressed and started to enjoy each others body.I lay on the settee and she played with my cock and sucked it. I asked Bob if he was going to join us and he said he might but still just stood masturbating as he watched us. I wanted him to do more so I got up and had Alison kneel on the floor and stuck my cock in her mouth again.I told Bob to come closer and I had he suck his cock. She did that for some time taking turns between his cock and mine. I again got on the settee and Alison climbed on top and rode me. I was really needing a good fuck so I got her onto her knees leaning on the settee and I took her from behind. My cock was hard and throbbing and I started driving hard into her and probably was a bit too hard as she groaned and squealed out as if in pain but I just kept going and I felt her shudder as she came two or three times. I eventually exploded inside her and as I withdrew I could see my cum run down her legs. We met once more but no sex was involved . I never did figure out who wanted this to happen but about six months afterwards I heard they had went their separate ways. I wish I had known where she went as she was a good fuck even though so skinny.