Lady Despina has a fetish for boots and she wanted to use them to dominate. This was something she had never done before and she was out to enjoy it a great deal. The mistress lured this guy to her house and she had a great time making him do things the way she wanted. In addition, the mistress made the poor guy lick the soles of her boots after threatening to trample him with the same boots.
Stella is a different kind of woman. She knows that she is a woman that loves wearing boots. But she loves them more when she can walk through a muddy road and hear the mud squishing under her feet. She doesn't like the way her boots look when she is done but she knows that she will continue to do it because she loves it. As she walks home, she knows her slave will clean her boots for the next walk.
When Madame Pearl puts on her boots, she knows what she is going to do. She has her riding crop in hand as she calls her slave into the submission room. She wants him to see her boots and admire her ass and legs before she starts her games for the night. There is no turning back when she puts her boots on. Her slave knows what's going to happen and responds like a trained dog.