He has to lick his feet. It looks... well, it looks pretty interesting! Even though I wouldn't go to my fetish tent, it would actually be cool.
Not everyone's thing certainly, and like I said, not even necessarily mine on its own, but enjoy a little of that kind of thing mixed in with the humiliation angle. And there will be more to the scene, and the rats. This is just the opener.
Your game, your rules. But add a part where he has to lick your balls. Please ^^ or something like that.
