Lisa is gorgeous by all accounts. But she's as good a sadist as she is beautiful. On this particular day, she was feeling good, and wanted to inflict some pain on her slave to celebrate her high spirits. So she made him remove his shirt and then with her high heels, trampled his chest oblivious to the pain her full weight was inflicting on his body. She then removed her heels and trampled his chest and face with her bare feet.