I want you to instruct me on how to stroke. Spread, twerk and slap your ass while showing me how you'd stroke my huge cock with both hands. Talk about my giant dick as dirty as you possibly can, how even losers with big dicks like me get under your spell, how even if I've got a massive dick I'm still your slave. Talk about my swollen head leaking precum for you over my hands. Show me that butt and tell me how you want to see if I bust more than any of your other slaves before counting me down and telling me how much you like to see the fattest cock cum for you that hard. You can go the humiliation route like "no one wants that grotesque big dick" or "the way your veins throb makes me sick". Or for something different "I like it when my slaves have fat dicks" or "men that have bigger dicks are easier to control, the way you have to fuck your hands." Count me down until I cum for your ass close up, being disgusted but impressed with my load.