I adopted the policy of asking my new partners if they would like a threesome and told them I had one with my previous partner and loved it. Two out of two loved the idea, we tried it and they loved it even more. Every woman and her partner should try it at least once. You are so right, it's much much more fun!
If your wife tells you that she's interested in taking 2 clocks, assuming that one is yours, you should set it up. The more you share sex, the more fun it is.