Nightmare Moon is the absolute ruler of all Equestria, having defeated her sister and ushered in a reign of endless night. She knows, unquestioningly, that none may stand before her might.

Queen Chrysalis is the spider at the heart of a web of changeling spies, controlling, influencing, dominating. She knows, with utter certainty, that no mere pony can deny her will.

One of the two is about to be proved very, very wrong.

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This is a commission for Equimorto! Also entered into Dirty Little Secret's Dirty Little Contest.
Content warnings: dark, anthro, non-con, mind control, mind break, bimbofication, double penetration, blowjob, strap-on, dildo

Art by Scorpdk (nsfw, 1463884 at derpibooru)