My wife and I have been married for 22 years and have had 2 fb's since early in our marriage, not much lately but everything ends eventually. The first was a single buddy of mine that hung out with us often, my wife is hot with big tits and always thought he was cute. One night during sex I kidded her about fucking him and she said she always wanted to so one night we were at his house having a few beers on his deck, I went to pee and get more beer and when I came back she was giving him a blowjob. He was embarrassed when I came back. I was hoping for a threesome but she convinced me to give them some time so they went inside and when I finally came in they were naked on the couch, she got up and we went home. She told me he had a hard time staying hard and they gave up. He came over one night after I was in bed and they fucked for a couple hours. There were more sessions after that, sometimes I was in the house and got seconds and sometimes I was gone and she told me about it later when we had great sex. He had a long thin dick with big balls that slapped her ass which turned her on. He had huge loads so seconds in her soaked pussy were great, one night he thought I was asleep so I could make out there movements in dim light and heard his balls slapping her before he filled her.
Our 2nd FBI was a married friend of ours who was a lot more open, we were all comfortable with each other and had great sex together. He didn't have big loads but a big head on his dick that stretched her out some so seconds were still great. I'm not gay but when he was done and was in bed with us kissing her or playing with her body while I was fucking her turned me on, her soaked pussy felt great, he was naked moving around her even playing with her clit sometimes while I was inside her making her cum harder. One night we had enough alcohol and convinced her to take both of us in her pussy. I was underneath and he was between our legs on top with a great view. Our dicks were falling out at first, I would get back in first then him, after a few times I felt his hand around both our dicks to keep them in. I had never been touched by another guy but it worked and felt good. It must have for him too because he held on as we were getting some rhythm when I felt him tensing up and then felt his cum gushing around me. It felt so good I said don't let go and came too. Between her pussy around us and his hand I never had a bigger load. As his dick went limp and slipped out I had cum running around my balls and down my ass. It was the only time we did it but was awesome.