Getting a college roommate is random chance.
Sometimes you get lucky, and sometimes you get a pony.

Rainbow Dash enrolls at an Earth university.

Update: and then some other stuff happens.

What if Discord had not been turned to stone by the Mane 6? What if he had escaped?
It is three years later and the Mane 6 have moved on with their lives, all except Fluttershy, who cannot get the draconequus out of her mind. The others are happy in their new and comfortable lives, until their enemy returns and will only relieve Equestria of his havoc in exchange for a bride.

This has been adapted into an audio series.

Also, here's a dramatic reading by Pablo Didonna, and one by 666HellGirl1

Cover Art by Nstone53

French: http://www.deviantart.com/art/Une-Mariee-pour-Discord-La-fuite-440318295
Spanish: https://www.fanfiction.net/s/10203187/1/La-Novia-de-Discord

*Bronyland Pony Awards Nominee 2013

For almost a year now, Trixie has been sending letters to Twilight. The only problem is, Twilight hasn't gotten a single one... until today. But now that she has, Twilight is left with more questions than she knows how to answer. Fortunately, she has a plan. Unfortunately, she doesn't know if that plan will work.

Featured on Equestria Daily
Reading by: WhoLandon
Reading by: PonyFicsOutLoud

While lounging around Twilight's castle and airing some friendship-related grievances, Discord stumbles across a magic book containing letters from an inter-dimensional pen pal. As it just so happens, this pen pal also had sinister designs for Equestria, but was quashed by the Elements of Harmony. What's more, she's made amends since that day, and she's now Twilight's friendship student. Eager to bond with someone who can relate to him on a personal level and grow into a better draconequus, Discord packs his bags and heads off to the human world with Twilight's semi-blessing. His mission: Befriend Sunset Shimmer.

However, his plan has a bit of a snag. See, Sunset hasn't been keeping up with Equestrian events, and she never got the memo about Discord turning over a new leaf. As such, she believes that his sudden appearance doesn't bode well for Equestria, Canterlot High, or herself. Not only this, but the Sirens are privy to Discord's return as well, and they see this as a golden opportunity to bounce back from their own recent defeat. Well, Adagio does, anyway. Sonata doesn't want to live in a world that makes no sense, and Aria would rather maintain what little dignity she has left by not getting involved (or so she claims).

So while Discord is trying to earn Sunset's trust and show her what a good friend he is now, Adagio is trying to get in on an evil scheme that doesn't exist. And while that is going on, Sonata is appealing to the Rainbooms behind Adagio's back, hoping that they'll make Discord go away. With so much miscommunication thrown into the mix, you just know that hijinks are inevitable. Good thing Aria made popcorn.

Cover art provided by the amazingly talented Neighthirst.

What is a sock to a pony? What is it really? Something special, something wonderous?

Hardly.

And yet, a quartet of them bothers Twilight on her birthday.

Sometimes, socks are what you have to make do while reaching for perfection.

Cover image by therainpony. Check out their awesome stuff!

Proofed by: Dumbgamer99 and Senyu

Anon likes his life to be simple. He wakes up, goes to work and sometimes gets himself a good book to read while he is home. It's a routine that he likes to follow, it makes him feel like he has a bit of normality with his life in Equestria. The fact that having Celestia come crashing into his home as part of his routine should prove that his life is anything but normal.

(Thanks to PeerImagination for editing!)

The Great and Powerful Trixie decides it's time to give back.

Because everyone needs a friend, don't they?

Proofread and edited by the wonderfully helpful OneWingedDevil, who I found with the help of the Author Support group.

One changeling is going to become a martyr for her entire race. How, you ask? Well, by becoming friends with ponies, of course!

She's doomed...

Don't expect very long chapters with this, as it's just a short set-up for what will be a much longer sequel.

Apple Bloom really screwed up this time. Her newest Twilight Time project, a body switching potion, fell into the hooves of Ponyville's resident DJ.

Now Vinyl and Octavia are stuck in each other's bodies with no way to change back. Looks like they'll have to learn to live like this for a while.

Proofread by bathroomstahl

One early morning Twilight is woken up by the sound of somepony knocking on her door. To her surprise she finds Rainbow Dash on the other side, only the mare seems off. Disgruntled and panicked, the more she talks, the more Twilight is convinced there's something wrong. What happened to her?

Cover art generously provided by the wonderful Angelic Flight over on DA. Go give her some love.

!!WARNING!!
Spoilers in Comments. Read before the story at your own risk.

EDIT: Now with a Youtube reading! Link
EDIT: Now with TWO Youtube readings! Link #2