Wow you are in for a wild ride. The way it always played for me and my wife was this. We had the same sort of relationship, I wasn't really a cuck so to speak. I loved watching her get fucked silly. Especially by multiple guys. I remember the one and only time we did a DP. That was hot. I was on my back under her and was in her butt. The other guy climbed on top of the two of us and penetrated her pussy. It was interesting that the guy (who was with his wife also) couldn't keep it hard long enough to get on top. So my wife had him walk over to where our two heads were and sucked his cock till he was real hard. The funny thing, while she was sucking his cock his balls were swinging back and forth next to my face. I had to chuckle. Then he climbed on and we had our first and only DP. I could feel his cock rubbing mine while he was pumping her. It's a different experience than you're usually used to. Back to the your story though, once the horse is out of the barn it's hard to stop. It didn't end well for us in that regard. Guys were coming over while I was at work etc. After a while it got out of hand. Fell free to message me if you have any questions.