Celestia had spent months training Twilight to be the best throat-slut possible. She facefucked her student almost every day, emptying her heavy balls into her new favorite cumdump. And Twilight loved every moment of it, so much so that she quickly found it difficult to even imagine her life without her mouth being regularly violated by the huge alicorn cock.

But the ancient Equestrian evil doesn't sleep, and neither does it care for her worldly pleasures. With the moment of Nightmare Moon's return approaching ever closer, so comes the time for Twilight to separate from her mentor and depart to Ponyville. Will her newly-learned oral skills help her subdue the dark monarch, or were all of her cock-sucking lessons just a thinly-veiled excuse for Celestia to unload her fat nuts into Twilight's throat?

Contains: Futa Celestia, Futa Nightmare Moon/Luna, huge cocks, large balls, serious oral focus, deepthroat, cum drinking, cock worship, musk, deepthroating two cocks at the same time (with the help of a stretching enchantment ), comedic elements.

Edited by Frocto.

A sequel written by Holocron can be found here.

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Cover art is a crop from a (NSFW) picture by DimWitDog. Derpibooru id: 1901511.