Mistress Zephy caught this guy doing something irresponsible and she knew that the best thing to do to him was to humiliate him for his irresponsibility so that he learned to be an upright and responsible citizen and adult. Since it was the first time she had caught him doing it, she punished him with her feet because it was a light punishment. He licked her feet and was humiliated but there was no pain involved.
Goddess Belle wanted to punish her slave and she did it using her bare feet. She wanted her feet worshipped and that is what she got from the loser. It was a lot of fun for her but she did not care how it went down for him and what he felt about it. She had a great time as she punished him and that was all that mattered. She had her feet licked and her toes sucked in the process and yet they were smelly.