This slave's punishment started out simple. The mistresses wanted him to lick spit off their soles and to endure the humiliations they had for him. But he tried to show himself as macho so they proved to him that he was nothing to them. They slapped him hard and made sure he was in lots of pain. They were hard and repeated slaps and the mistresses took turns to slap him.
When Mistress Natasha found her new slave longing for his former mistress, she knew she had to get him in hand. She put on her punishment clothing and called him to her. She spit on the bottom of her severe shoes, making him lick it up. She then used the sole of her shoe to slap him into submission. She doesn't want to leave him in any question about who he belongs to now.