There's a new spring in the step of the crown princess of Equestria. No weight of responsibility is powerful enough to crush the spirit of a sovereign with an outlet, and the recent addition of her beloved student to the roll call of Celestia's mistresses is enough to make her feel that she's got it made. The surface has yet to be scratched however, and there's a certain sister out there who knows Celestia better than she knows herself.

For a fortnight, Twilight Sparkle has been sequestered in deep research at the behest of the Princess of the Night. On the day before Celestia's birthday a cadre of sensual plans is about to come to fruition. Plans that will drive The Sun to the limits of her most impossible fantasies...and beyond.

(Note: This story is a paid commission, and may or may not represent the views or interests of the author. Story contains sexual petplay, BDSM, incest, voyeurism, public displays, and futanari, among other things. If this sort of interaction is not your cup of tea, consider moving on.)

Commissioned by: DbzOrDie.