Why do (some) men want to be with two (or more) women at once? It just sounds like so much work. I mean I've been around and I don't want to cast aspersions on anyone in specific but in my experience they don't have that kind of stamina. Of coarse a better question is why would any woman want to participate? I mean ya know you're not going to ...uh...be satisfied when it's all over.
On the other hand I can see why a woman would want to be with more than one man. Double (or more) the odds of...satisfaction.
Hmmmm the things ya ponder when you're married and your sex life might be described as tame but satisfying :)