Celestia agrees to allow Twilight to spend the night at the palace per Luna's request. But as it turns out, the two ponies have other things in mind other than a sleep-over...

A Borderlands crossover. Set on the wasteland-desert planet of Discord, four unlikely comrades are shoved together at the whims of fate in pursuit of the fabled and long-sought-after Vault. More than one of them hide secrets in their pasts, and in their endeavor they will have to overcome overwhelming odds to reach the source of their dreams.

The Elements of Harmony are defeated and Nightmare Moon stands on Equestria's throne as their new Queen. Is Equestria doomed to suffer through night time eternal or will they be... perfectly fine? Twilight finds her new job as slave or "personal assistant" to her new ruler to be a bit maddening. But is this evil sarcastic queen really as bad as she originally believed? And just how many others are diabolical enough to cash in on the change in staff? Can Nightmare truly run a peaceful Equestria? Let me just answer all these questions right here in the description...

Her beauty, sullied; her wisdom, corrupt; my love for her, violated. But still I answer...

Summoned to the palace in the dead of night, Twilight takes up a burden that even her generous, loving soul may not be able to handle...

Humanized Twilight/Tyrant!Celestia.

After Nightmare Night, Luna invites Twilight to tea, and they start spending more time together. Princess Celestia teases Luna about it sometimes.

Twilight finds herself enthralled by Princess Luna and everything she represents. As Celestia's pride and joy, Twilight struggles to repress these feelings. But an old and well-known evil surfaces again at the worst time. Can Twilight fight off the spectres of the past?

You don't think Rarity risked getting cement in her mane just to repair a dam, do you?

This is the short tale of a frustrated white unicorn and an oblivious orange earth pony.

What if Twilight and Trixie were both zeppelins who were in love? At last this age-old question has been answered!