We think about serving another couple a lot. We think about the lead up and preparation. What instructions will we both have, what instructions will we receive that are secret from the other? We have also used this as a way to dominate each other, in the name of a faceless dominant couple. We have been "required to shave each other bare, administer enemas, refrain from sex and masturbation, or be required to masturbate in front of the other. We also create scenarios where we will serve together and separately, or serve blindfolded when you can only hear what's happening to the other. It has also been exciting for both of us to serve the same sex of the couple in front of the other or apart.
Our most recent fantasy included separate training and the. Having to perform what we learned. This has involved oral service and taking larger plugs in front of each other. It's very exciting for us but not sure if others have the same ideas.