We didn't come up with the name Quadtrimony at the weekend retreat that started it all. We came up with it a week later, when we met back up and agreed that what the four of us had discovered that weekend was so much more than just a fluke. There is a distinct separation of our lives before that retreat and after. People may think it is only a sex thing, but it is much more than that as well, and it all started with the a...