Mr. & Mrs. Clearlykt,
One of your posts shows that you're both on the board here. What a great start! I'm envious that you have the feelings you do, Mrs. Clear. I'd love to get my wife involved, and much like the akamgaxoxo's, I'm not necessarily that interested in adding another woman to the mix. I don't know if my wife thinks that by me bringing up another playmate for her that it means I'll ultimately expect her to reciprocate or not. Like you, I suspect she has a hard time visualizing me with another woman. I guess I just need to do a better job of letting her know I don't expect reciprocation on her part.
That being said, am I correct in reading that your husband is OK with bringing another man into your bed, even if he may never end up doing the same with another woman? If so, get over your feeling that it isn't fair to him and have fun! You never know, at some time down the road you may decide you're OK with him being with another woman. As you've probably read alot, your boundaries can change.
The key thing is, you've communicated. And Mr. Clearly, if you don't expect that turnabout is fair play and you are just using this as an in to get the Mrs. to swing so you can have another woman down the road, you'll be fine. It may happen, it may not. But in the meantime, enjoy the woman you love in the throes of orgasm being delivered to her by you and another while you get to watch to. As a beer commercial says "It don't get no better than that!"