This is more than just trampling, but let's start with this- he crushes him badly! She has no mercy and stomps on his naked chest like a fury, and she likes that! To make more fun of it she pinches his nipples and slaps his face. This is what she thinks of him and this is what he as her slave deserves and has to cope with, cause she's the boss in this game. Stepping her sharp heels in his skin is so much fun... no way out, poor slave! She's the pro.