The usual stuff,

Got sent to Equestria by an item from my cosplay.
Got turned into the character I cosplayed as.
Now I'm stuck, though that's not necessarily a bad thing; my buddy Undertaker is here with me!

Though basically kidnapping a pony isn't a good way to get in the Princesses good books.

A Displaced Fic
I Do Not Own Black Butler Or MLP
If I did, Grell would totally have more screen time and Pinkie would get wings for a day.