In my twenties, I had a supervisor at work and he and his wife were about 50. As we got to be friends, he confided that he and his wife were discreet occasional swingers although it had been a few years since they had played. I was actually having a bit of a dry spell, and had met and liked his wife, as well as finding her sexy, so I agreed. But, first he informed me that he was bi and that they were hoping I would be interested. I had already experienced a bi oral tryst with my best friend where we got really high one night, both admitting we were horny, and when he suggested jacking each other off, I answered by leaning down and taking my buddy's hardening cock in my mouth, him soon reaching for my rock hard cock, and we were soon 69-ing and we each must have cum 4 times that night in each other's mouths, but he had moved away and I hadn't really thought about it until this offer. Needless to say, I was game and enjoyed our regular get togethers, until I met my first wife. But there's nothing like having a husband and wife simultaneously licking and sucking your cock and balls together.