This mistress likes hard working slaves. She realized her new slave was not as hard working as her other slaves so she made it a point to teach him to work hard. Since she did not do any work herself, she could not show him practically. So she humiliated him and tortured him to make him work hard. She rode him like a donkey and slapped him for a start. The rest would follow depending on how he responded.
Princess Serena did not let this guy know that she wanted to humiliate him and punish him. She flirted with him and he thought she was into her. When he took the bait, the mistress took him to her house where she humiliated him. She made him lick her feet and she threatened to trample him using her high heels if he did not lick the high heels the way she wanted.
This mistress discovered that this guy had given her horses the wrong medicine. She was pissed as he was given clear instructions on what to give them and how to do it. She caught him midway and she trampled him and crushed him as the horses watched. She used her boots to kick him, stomp on him and trample him as much as she wanted. Then made him do the right thing.
Princess Bertie knew this guy had a crush on her and was even stalking her. She wanted to test him so she called him to her house where she told him she had a spit fetish. She made him endure being spat on the face and smoke blown on his face. She was surprised he did not run away and she knew he was so deep into her she did not know what to do with him.