Oh yes, you did read that correct. Sand paper on the bottom of black heels stomping and crushing a set of balls. indeed. You will here the screams from this slave, funny thing is he was begging for it. When Domina is done he may regret asking for this. Domina loves hearing the scraping sounds the sand paper makes rubbing across the balls. She loves to up the game when it comes to a big set of balls. Sand paper sure does put a slave in his place, under her feet.