Studies with Celestia are always the best part of Twilight's day. And this time the Princess has come up with something that will truly leave her pupil breathless.

Contains: Futa Celestia, huge cock, some serious oral focus, deepthroat, heavy musk, mild cum inflation, no refractory period.

You can also check out a prequel written by Holocron. And another related story by Ekhidna.

A commission for Donttouchmysqueenus.

If you want to order a commission too, check this out.

Cover art is a crop from a (NSFW) picture by DimWitDog. Derpibooru id: 1256580.