This slave's mistress put on two different converse shoes and starts to trample his head viciously right away. She doesn't care about his pain or the damage she does to his head. She just loves to feel skin under her feet and hear the moaning of her slaves as they're in serious pain underneath her shoe soles!
Mary Lou is wearing her converse-style shoes for this trampling session and the slave is already lying on the ground with his hands bound when she steps on him. But she doesn't limit the trampling to his chest and stomach - she also stands on his head and face with her full weight before she takes her shoes off and continues to trample him viciously under her bare feet.