Akari, an innocent yet curious 18-year-old, stumbles upon an abandoned mech walker, its mechanical cock throbbing with an otherworldly energy. She can't resist the urge to touch, to feel. As she strokes the metal shaft, it responds, growing larger, harder. Akari's pussy aches, her panties soaked. She spreads her legs, guiding the mech's probe to her virgin asshole. It pushes inside, stretching her tight rim. Akari gasps, her body tensing as the mech begins to fuck her, its mechanical hips thrusting rhythmically. With a final, powerful surge, it fills her ass with its creamy, robotic seed, leaving Akari panting, her body coated in a sheen of sweat and cum.