Well that depends. If you're an arrogant ignoramus during the appointment then my enjoyment does end when either you or I leave the appointment, depending on the type of appointment it is. So there, I am one who will pubically admit that. Those are appointments that have happened no more than half a dozen times this year but we all get them.
My sweet spot is when his hand travels to my bum, his fingers touch it and his tongue makes it's way down. Accomplished tops who wish to give as much pleasure, as seek it, know exactly what they're doing because they know that the touch, sensitivity and smell of a truly excited bottom is the key to making their experience as pleasurable as the encounter they seek themselves.