Lady Karame had been smoking while she rode her slave as a human pony. She noticed that the ash was spilling all over the house and even though she was not the one to clean it, she wanted to avoid that. So she turned her slave from a human pony into a human ashtray. It was still painful for the slave and humiliating as well. He had no say in what she decided though.
Lady Milana has never given her slave a choice on which punishment to receive but she did it today. The mistress asked him to choose between being a human ashtray and being ballbusted. He tried to imagine the pain of having his balls crushed and he agreed to be used as a human ashtray. The mistress asked him to open his mouth and his mouth served as her living ashtray.