The reverse could arguably be more fun...
Do something to the sub that causes them a lot of pain, nipple clamps or pegs on balls would be idea, then make them give you oral but very slowly so it's all YOUR pleasure. Tell them that as soon as you cum they can remove the clamps but then keep telling them to slow down so you can savour the moment.
They will want to make you fast and the pain will make them faster and faster so you force them to concentrate on YOUR pleasure
