Description:
Twilight Sparkle, having been freed from slavery on Earth, is now living with her rescuer and helping him run a company. At the same time she is trying to keep a pony rights organization on its feet and juggling a budding political career, all in pursuit of improving diplomatic relations between Equestria and Earth.
However, each day only has so many hours, so Twilight begins to look to unusual and dangerous magic to solve her problems. Naturally, that incurs new problems.

About/Meta:
This is the fourth part of the same universe/storyline, but I believe it can stand on its own with the bit of backstory in the description above. It was originally written as a Halloween special on the /mlp/ boards on 4chan, so naturally the main human protagonist is named "Anonymous", but the story is written in third person and simple past.

Contains (consensual) sex scenes, some scary/horror elements.