For as long as you've been trapped in Equestria, you've been watched over by Princess Celestia. She has helped you to grow accustom to life on this strange world of anthropomorphic ponies with horns and wings and magic. And you in turn have been her friend through times of need. In fact, the two of you have started becoming closer than just friends, and the princess of the sun has recently asked you to help her act out a sexual fantasy of hers.

For a long time you've watched her be a teacher to Twilight Sparkle, and a mentor to many other ponies. So when the Princess asked for a student/teacher fantasy, you jumped at the chance.

You were not expecting Celestia to take the student role though....

Warning:
Human X Anthro pony ahead!
2nd Person story.
Two adults attempting to do Sexual role-play.

If any of these things upset you for whatever reason, then it should be pretty obvious to not read this.

Edit: Thanks Dash the Stampede for pointing out the multiple errors in the story when it was first submitted.