Twilight Sparkle has an unusual hobby: She writes down her deepest fantasies about her mentor, Princess Celestia and keeps them for her eyes only, knowing it's just a little game she likes to indulge in. But when one of those letters enters the possession of the Princess, Twilight is going to find out she is pretty receptive of those fantasies...
Written as a commission for a very patient user.
Proofread by The Derpy Division
Cover Art by ddhew
All the characters engaged in sexual activities are 18 years old or more.
Warning: Contains Futa, light bondage, public sex, power play and Trollestia.