Twilight has just wrapped up synthesizing a chemical in her laboratory, but starts to have an interesting day when she accidentally doses herself with it.

When the ad for a roommate was answered by a pony, Louis was more than a bit surprised. He had heard about them in the news, and how they had come from another world. But what Bronies had wished for wasn't exactly what they found. Now the real ponies are visiting earth, and he has one living with him. How will the straight laced normal guy learn to deal with a hyperactive pink pony, and how will she learn to live in a world without magic?

A bit of a sitcom style slice of life, where the real ponies are as different from the show as we are from cartoon humans. Rated PG13 for innuendo and language. Expect foul language, F-bombs, sexual innuendos, and tons of low-brow dirty humor.
Featured! 2/7/14
Room for Rent: FAQ
Edited by Zyrian

After a thousand years imprisoned in the moon Luna has returned but for her those thousand years passed by in a matter of moments. Though the Elements of Harmony have cleansed Nightmare Moon's taint from her heart she is still very much a broken mare. Celestia suggests she write her thoughts down in a diary to help her process what she is going through but what will she see fit to write?

*notes*
Chapters for this story will be short but will be updated often.
Featured on 6/18/2014 and several times since then. Holy crap you guys are awesome!

This is a fic based on the Time Loop Files, the format of which was first codified by Innortal on fanfiction.net.
Here's a brief guide.
The basic idea is, one character (the Anchor, usually the main character of a fictional setting) is looping back to the very first moments of their parent series every time either they die or some kind of time limit expires. They of course end up monumentally stir crazy given enough time.
Eventually others start to loop as well.
The reset is not always perfect. Sometimes a loop's history will be different to the "prime" loop, or canonical plot.
"Crossover" or "Fusion" loops also occur, randomly. These can involve the home loopers having a guest, or the anchor for one universe spending time in another, or replacements of one character by another.
Vacation Loops are where the Anchor (or others) decide/s "buck it" and lets off steam by doing whatever comes to mind. There's little or no attempt to maintain the original timeline.

In addition, and particularly more recently, it should be known that this story has a collaborative element to it - people may submit loop ideas or loops, ideally at the Spacebattles thread (a link to the current version of which is on the Trope page), and they may become included.

There's two page image options, thanks to Filraen - the current page image has been edited by the original creator from this work of theirs.. The other one is here:
http://hourglass-vectors.deviantart.com/art/MLP-Loops-466030169