Welcome to our forum.
Another resource that might help you is "Opening Up
," a book by Tristan Taormino. I suggest you and your husband read it together, it will give you much good discussion material, help you figure out what kind of a scenario you're looking for, and ease your husband's fears by making the subject more familiar.
Also continue to participate on this site, there is a lot to learn (and post) here. Would your husband considering registering here? Perhaps he could get some of his own questions answered.
I hope you guys are able to work it out. Let us know whatever we can do to help.