Princess Celestia was looking forward to a night filled with kinky not-quite-incestuous sex with her bride-to-be Nightmare-Moon. Unfortunately, Twilight Sparkle, because she's a cock-block so adorable, shows up and asks what they're doing. They had dice out and everything, so they quickly claim it's just a game of D&D. Twilight Sparkle, because she's a cock-block so adorable, asks to join their game. Since Celestia hasn't explained the whole Discount Princest, they agree to keep the charade going.

The next night, just as they two are about to get their freak on, Twilight F:twilightsmile:cking Sparkle shows up to be a cock-block adorable and has invited some others to join in the game. Well…. Nightmare did write up an outline for the adventure and it's not like this is the first time she's played dungeon master….

And so, the group begins their game, unaware that Nightmare is a DM fond of trying to murder her players when they least expect it and Celestia is trying to undermine the adventures from within because nothing shall stand between her and her Discount Princest.