Well our quad has progressed even more. Out of the last month I have slept with my GF more than my wife, in fact we are now hanging together so much that we are talking about moving the 2 households into one.the ladies now talk about being sister wives and the guys are doing more things together. We only live a 5 minute walk apart from each other right now.
As a fourple we have learned that we cando so much more together but even more we are happier as a fourple, arguments die quicker, and laughter starts faster. We get together and talk laugh and have a general wonderfult time. Not to mention the sex is fantastic. We will be celebrating 4 years together soon.
Yes polyamory can work just fine.