For me, Dominance during intercourse has little to do with the physical connection between our bodies, but rather, is all about that mental connection.

I remain in control as it is up to me if he cums, when he cums, how he cums and where he cums. I also determine the rythm speed and intensity of our intercourse. Further, I may give him directions, use some of my "pet" names for him or otherwise remind him about who is in control.