A man saves 2 girls whose kidnapper died car accident. Location was isolated. Their old master trained them to the point they forgot their names. Trained to report on each other's sins everyday and punished everyday. They had to use their tongues to clean each other anally.
Hero of the story is told to take care of them by police. Slave girls ask him to continue their old master's practices but he makes changes. They clean themselves normally before licking each other and he spanks them instead of whipping.
When reporting sins one slave girl admits she acts bad hoping for punishment and the other snitches to see her punished.