Valeria's cruel passion is to stand on her slave's throat, until she reduces his breathing air. She only needs her bare feet for that, and you can clearly see how deep she pushes her toes into his throat. The slave is totally overstrained but horny, while his Mistress tortures his Adam's apple. She doesn't seem to consider an end and enjoys his miserable attempts to breathe properly again - but she only becomes more merciless!
Princess Jenny wants to condition her slave until he's totally obedient to nobody else but her! She chose him as her new slave, and she shows him what this means in feelings: she walks over his body, while his upper body part remains undressed, and digs her sharp heels into every little inch on his skin that hurts the most. She also pays enough attention to his face, which she squeezes under her cruel high heels and jumps on him without mercy!