Re: Want to watch wife with another woman
Has she ever expressed any interest in being with another woman? Has she ever shared a fantasy in which she was with another woman? I would tread very carefully here. If she has no interest in being with a woman, she will likely take your question as you hinting that YOU want another woman, and I think we all know where things will go after that. And if she DOES have an interest in being with a woman, things could still get very messy.
If you really, really want to go forward with this, I would strongly suggest subtly feeling her out on this. Maybe weave a fantasy one night while you're making love in which she is with a woman, and see what response you get. If she gets hotter, you might be on to something. If she goes cold on you, then you'll know it's not going to happen. Or ask her how she feels about two women together: does she think it's hot or something along those lines; maybe tell her it was something you read in an article or some people at work were talking or something like that.
But, I would definitely be wary of just going, "Hey, babe, you wanna do Bob's wife? She's game if you are!", because that's just not gonna work.