Madame Svea wanted to prove to this girl that she is not one to mess with. So she forced the girl to lick her sneakers. The sneakers were dirty and she had spat on them earlier. She forced the girl to lick them and when she was done, the mistress trampled her using the same sneakers. It was cruel for the girl but madame Svea was having a great time.
Madame Marissa watched a video of foot licking and she was dying to try it. She went and she got herself a slave and she practiced on him. She had him lick her high heels including the sole. Whenever he did something she did not want, she punished him using her high heels. She would trample him and he would know he had messed up and he would then do what she wanted.