I have seen my wife like this so many times from the same angle…..
My god! This is just how I imagine watching my wife….want it so much more now
The moment all 3 of you realize he wants to be in her, you want him in her, and she wants him in her. It’s a win-win-win situation.
That leads to her fucking them in our bed, or she’ll go off with them and return a day or two later. I have told my wife that is fine with me.