Muttered Curses || Bill Cipher X Reader
A friend's frantic call brings you to his apartment in the city, where you find a mischievous demon recently bound to your name.
Now in a physical human form, the being is stuck with you until you banish him from existence- or until you die, whichever comes first. On the terms that you keep him around, he agrees to obey your whims, no matter how morally correct they may be.
Unbeknownst to you, this demon has a tendency to turn things on their head.
But when a life already upside down gets turned around, does it straighten out or only get worse?
With Bill around, there's going to he a lot more headaches and muttered curses.