[If he could manage to smack a reaper, he probably would. As it stands though, Grell was supermatural, Ciel was only attached to the supernatural.]

No, he isn't. [Ciel confirms, almost casually. He still has a few tricks up his sleeve and it never above manipulation. This calls for him to play one of his cards.]

Oh, I'm sure you could. However, that also steals Sebastian's next meal from him. I've no idea how alike to humans they are when hungry but I imagine 'angry demon' would be something of an understatement. And if, when really, he found out if was you who was responsible... [He pauses just enough to add tension.]

Well, I'm not sure you want to be on the receiving end of that particular mood. You're so worried about him, I'd say it's rather in your interest to actually protect me rather than attempt to reap my soul.