Well, everyone's experience in a bdsm relationship is unique, and most here are already in one. Your story described the awkard beginnings, slow realizations and the excitment of exploration with. While I still have to find Mrs. Nk, I look at this thread as an inspiration about a normal couple going through an adventure together. Your husband is a lucky man, plus that Mustang is wickedly awesome.
So what did I learn? I learned that having a bdsm based relation is not easy, yet not hard if both participants are willing to work for it, from what you have written, and most importantly I learned that you are wildly happy, and that your marraige is a lot richer after starting this journey together.
Methinks you have a compliment phobia also. Everyone here reads your thread and gains something from it, while you may think you are simply sharing you thoughts and feelings, to a reader (at least to me) you are doing a lot more. So thank you, and you better accept it or I'll tell your husband to deny you orgasms for a week and say its a part of a supermod initiation.