Well, if you plan on approaching this, I would just very casually ask your wife if she has ever thought if she would want to do something like what you have described to us or something similar. I would not say you want to do it or anything like that. This is just an inquiry and see where it goes. If she turns the question back to you without answering and asks you if you would like to do that, or are thinking about this, be VERY careful what you say. I think you could just tell her it is a fantasy of yours and see where that goes. I do not think at this point, you perhaps know for sure if you would even want to do this, especially if it might mean losing your wife. Tread very lightly here. Like others have said, you cannot undo any of this once you open this up in any way shape or form. Most importantly, remember fantasy often is much better than reality when all things are considered.