[Insert joke about Sebastian's most scandalous affairs being with cats.]
Oh, you see, Mr Morningstar's thought was that the semantics would mean I am not technically disobeying orders that way.
[Lucifer is kind of silly that way, you know? It's a nice thought, certainly, but it's not going to work out that way in reality. Sebastian is just going to have to make sure Ciel never finds out about it.
It should be noted that Sebastian has no ulterior motive of embarrassing Lucifer by saying this (for once). He's aware that Lucifer cultivates the image of the big bad devil to the best of his poor abilities, and he also understands... on some theoretical level... that Lucifer wouldn't want to be associated with kittens in any way.
But, well. Now they're on the subject of cats. You know how much deep thinking Sebastian can manage under these circumstances.]