Sebastian and Ciel's relationship has changed after their contract ended. Ciel is no longer serving the queen, but like always he's managing his business under Sebastian's supervision. I suck at summarising so I'll stop there. You can't judge a fanfic by its description, though it gives you an idea on how screwed up it's going to be.

Ciel is sleeping in late, so Sebastian uses desperate measures to wake him, but bochan is so startled by this he manages to tie himself up, completely vulnerable to the lustful demon...