Mistress Liza wanted this slave to fuck her boots after he was done licking them. They were dirty and he had to lick them clean. When he was done doing so, she then went ahead to force him to lick fuck them until he came. She was not going to let him stop unless he had had the orgasm she wanted him to have. It was super fun for her.
Mistress Liza had to dick trample this guy because he was a dickhead and she did not want to let him continue being one. He was a pain in the ass and she had to ensure that he stopped being one. So she had to use a painful method to get to him and she did so using her boots when she trampled his dick. He screamed and cried and never messed up again.