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Fasttrack37d
Donkey's Underwear cover
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Donkey's Underwear

A man tries on a pair of novelty purple briefs stamped Jackass, and the joke starts taking him over, ears first, until nothing human is left standing.

by Fasttrack37d • M • 10 pages
Created Jul 18, 2026 · Updated Jul 19, 2026
SoloHumanDonkeyEquineMammalFeralTransformationGrowthPenis ExpansionBalls ExpansionBig PenisBig BallsHorsecockCumshotUnderwearMagic
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