When mistress Marketka noticed that her slave was restless, she did not want him to interfere with her reading. She loves to read and she had a book in hand. So she kept him busy so that he did not disturb her as she did her thing. The mistress used her socks to do it. He had to sniff them and chew them as per her instructions while she read her book.
Mistress Gaia wanted a human toy to play with and she turned her slave into one. The mistress wanted him to lick her feet, sniff her stinky socks, lick her pussy and her ass, endure trampling and ass sitting and he did all of that as she did not give him an option. He had never been as humiliated as he was today by the mistress. But he endured it all.