I have to confess that I have watched a bit of porn and thought about good sex before bookings to get in the mood. I use it to make make myself appear aroused - even though the client is an ugly sod with no technique, it gives them a sense of achievement. I also use my bullet vibe before the session and in bookings and close my eyes - again it makes the client happy and it feels good to me. If I shut out the thought of the client, I can climax and clients love this. They would be upset if they knew that it had nothing to do with them.
Sammy