It's Celestia's birthday, a day she'd prefer to let go unmarked and uncelebrated. Which is why she is slightly chagrined by the fact that a two-story-high chocolate cake has seemingly materialized in her bedchambers.
Twilight Sparkle, eager to save her friend from the embarrassment, rushes in to dispose of the cake before the princess wakes up. But she's too late! And, to make matters worse, Twilight hasn't quite mastered the art of landing yet...

Commission for a friend. Chapter one is light and fluffy clop, chapter two is more grimdark, and involves a certain changeling queen.
Chapter one: [Clop, Shipping, Sploshing, Cunnilingus]
Chapter two: [Grimdark, Mind Control, Bondage, Oviposition, Rape]