Alone in her dimly lit boudoir, a woman's curiosity piqued by a mysterious, humming machine. She tentatively approaches, her eyes widening at the sight of the mechanical phallus. Her breath hitches as she wraps a hand around its cool, smooth surface, feeling its throb. She strips, revealing her curves to the machine, and positions herself, feeling its tip press against her slick entrance. With a flick of a switch, it enters her, inch by inch, filling her completely. She gasps, her body tensing, as it begins to move, fucking her with steady, powerful strokes.