Uhm, thats terrible that you think this. Women know their bodies or most of us as mature women do. It is not that difficult to have an orgasm if everything is in the right position and I know exactly how to get my gentlemen in that position. Myself, I am multi-orgasmic so there will be O's and plenty of them once we hit the spot. There's no need to fake pure pleasure and alot of us really enjoy what we do and its not a performance.
Since my clients aren't random and we see each other on a regular basis, we do know each others bodies and how and what it takes to please us. Even my first encounter gentlemen have had no trouble getting me to that point because of communication.