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 finds himself growing more and more attracted to his devilish fiend of a butler, but doesn't know how to express his feelings at all. Neither does he know the... "dirty"... things of the world either... (THERE WILL BE YAOI)