There is one thing between Ciel and Alois. That is, hatred. The two of them are determined to kill each other, but the only problem is that the queen has set them into a contract, to work along side together. (This is not an CielxAlois yaoi by the way!)

Sebastian and Ciel made a contract. A contract, something quite similar to a promise. But, sometimes, the best promises, can have the worst outcome. (boy x boy)

“Willy, are you mad?” Grell asked. “No Mr. Sutcliff, I am not mad.” He hissed silkily. “I am furious. I think it’s time teach you a lesson you will never forget.” William grabbed Grell’s long hair and wrapped it around his hand. He pulled hard causing the red head to yelp in pain. “Prepare yourself. Tonight I’ll have no mercy.” [William T. Spears x Grell Sutcliff]

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 don't know how to summarize it so I'll stop there. You can't judge a fanfic by it's description, though it gives you an idea on how screwed up it's going to be. Sequel Sebastian x Ciel 2 (Fuck my naming sense, eh?)