I don't feel that I can separate my emotions from my physical state; maybe that's why I've never been good at casual relationships.
From the moment he says he's going to give me an enema, I am aroused to the point of distraction. I am vulnerable, but at the same time I trust him. I am humiliated, but excited. I know he is doing this for my own good. Yes, I want to be dominated. I want him to control me. I want the intimacy that goes with giving him control over my most private of functions.
He orders me to get into position. Exposing myself is another reminder of my defenselessness and of my trust.
The insertion of the nozzle is pure pleasure, but it is also an invasion, as is the water that follows it.
He controls the flow, and therefore my physical comfort level.
He tells me how long I have to retain the enema, controlling not only my physical comfort now, but my emotional comfort as well.
Like the insertion, the expulsion is pure physical pleasure, but emotionally taxing as he may choose to watch or even play with me during this normally very private act.
I can't uncouple the physical and the emotional.