Got back to this, and I really do enjoy this, as much for the context and "commentary" as for the story and the moments themselves.
The setting, the experience and the simple spontaneous fun is a lot of fun, its sexy, well told and nice, but on its own its "just" a moment, which is no doubt why it has the context and commentary, that makes this so much more than it would otherwise have been.
Having read quite a few, but still not all (working on it in between everything else
) that you have written this adds a great deal to the experience, and the wonderful insight into you and your wonderful husband
The comment about how much the naughty and forbidden can play into your pleasure actually makes a great deal of sense, since so much of pleasure is in the mind after all. How you feel about the situation, how you are "supposed" to feel about the situation are always important factors and its only natural that this is going to play into your pleasure and responses.
As for the giving nature of your husband, perhaps pleasure and orgasm are not so tightly coupled for him? It certainly seems and feels like that at times, as if so much of his pleasure actually comes from, flows from and is centred around your pleasure. Which just makes what the two of you have and share so much more special and wonderful to be allowed to catch a glimpse of