About 10 years into my marriage, my wife Lisa and I decided to avoid the pitfalls and affairs that most couples fall into with being bored and decided to open our relationship to experiment together. At first we had a comic series of missteps, failed foursomes and random encounters until we finally hooked up with David. It wasn't supposed to be a threesome... his date got cold feet, took off early and left the three of us horny and desperate for something to finally happen.
At first, we were like characters in a bad porn movie. The guys were conspicuous about avoiding any body contact lest we fall prey to any hint of being remotely gay. Luckily we all liked each other and over time, it evolved into something almost polyamorous. He was over more often than not. My wife slept between us and grew used to having both of us on demand. No one got much sleep. As the weeks and months went by, our inhibitions dropped off and we grew excited to push our limits.
One night, my wife noticed me staring at her as she sucked his cock. It was mesmerizing for me to watch... especially when she locked eyes with me and seemed to revel in how hot and nasty she looked. She pulled his cock out of her mouth and offered it to me... probably as a tease but I took her offer to heart and started sucking him with her. I don't recall which of the three of us loved it more but it was obvious that it was a major milestone out of the way.
After that, nothing was off limits to try.
With time, we fell into patterns... just like any other couple we wound up doing what felt good for us. I had no idea what we were doing at the time but in retrospect, I can see now that I was a sub. I loved to suck Davids cock to get him hard. Go down on my wife to get her wet. Take an extraordinary amount of pride as I inserted his cock into her pussy and stuck around to rim the two of them as they fucked. To see his semen pouring out of her was my trigger to cum... usually on both of their faces as they returned my favors by sucking my cock together. Something really sweet about collapsing in a heap together, glued together by sweat and spit and semen.
One weekend, Lisa and I started early on a Friday night and kept going into Saturday morning. David showed up around noon raring to go but by that point I'd lost count of many orgasms we'd had and I was a spent, sweaty mess. My wife gave me a look that told me now that David was here, she wanted to go again but I was convinced I had nothing left. I told them to go ahead without me. She said she felt bad about leaving me out of things... our prime directive had always been to do things together.
Almost as an afterthought I told her to get on top of me in a 69. I'd do my best even as I thought I couldn't cum anymore.