It was a little surreal.
Once you get your hand in, you look down and it is missing because it is in another woman's pussy! 
(My pussy just throbbed writing that.) I got off more on the idea that I was doing something so depraved and that my female partner was about to cum and my male partner who had just cum for the second time that night and hadn't lost his hard on and was getting harder.
The whole scene was so electrifying. It was the closest I ever felt to what it would be like to be a cock in a woman's pussy. You always wonder these things as a woman.
