Punishment Must Be... He Gets Exactly What He Deserves!

Today, Christoph, my personal house slave, was with me again. He wanted to be milked by his mistress again. Since I owned completely new toys for slaves, I had to test them on him right away. It had its effect and he got really horny about it. But since he had jerked off before without being asked and I caught him doing it, I had to come up with a punishment for him. You can see what that was here at the end of the video! I hope he doesn't anymore without my permission.