Agree. Current GF started out as casual FWB who was in a toxic and dead relationship. Her fiancé idea of date night, was to get drink AF while out for a meal, demand she gave him a BJ and then missionary fuck for 30seconds, causing her pain.
Zero concern for her enjoyment or pleasure.
Taken 2years, open talking, and toys to get to a point where she will even cum without a pillow over her face.
The *rush* so to speak, comes from knowing that I'm giving her pleasure, for her. Focussing on her.
That last line sums it up perfectly to how I feel about it.