Under a Spell?

(Black Butler fanfic)(Ceilxreader) Ceil Phantomhive is always busy with paper work from the Funtom company and, more often than not, assignments for her majesty the queen. But someone who spends all their time inside a mansion with three servants who are always breaking, burning and destroying things need to get out sometimes.

So what happens when he goes to see a dance performance and becomes entranced in the dancers elegant and graceful movements? Well I'll tell you, he wishes to finally learn to dance.

Vivian, is a mystifyingly excellent dancer, and is more than happy to teach anyone on the performing arts. She is sharp tongued with unrivalled sass, which is rarely, if ever, seen in the women of the time. But Sebastian Michaelis senses something "off" about this new addition to the household, but he just can't quite put his finger on it.

But when Vivian becomes completely loyal to her master and someone threatens his life, what will she do? Will all be revealed? Or betrayed?