Kira Noir, the sultry ebony goddess, finds herself in a unique predicament when she volunteers for a mysterious medical experiment. The doctor, a lecherous man with a penchant for perverse pleasures, has other ideas than scientific discovery. He orders Kira to strip, her tiny tits and bubble butt on full display in her tight yoga pants. She's told to perform various sensual exercises, her body glistening with sweat and lust. As the doctor's thick, throbbing cock grows apparent under his lab coat, Kira realizes this is no ordinary experiment. She's to be the subject of his deepest, most taboo desires.