【The Strongest Ghost Fuck Machine in History! Super Vibration Orgasm Bike Born】A powerful electric vibrator with 5 cylinders is installed on the familiar aero bike at the fitness gym, realizing a fierce vibration of 38,000 rotations per minute! Four wives with hips over 90 and big butts who came to experience the high-priced monitor challenge! As soon as they start pedaling, the unprecedented intense vibration hits the clitoris and they are surprised by the climax! They bend shrimp-like and spasm to the limit, leaking urine. Furthermore, the wife who gave up was attacked from behind, causing her buttocks to shake violently and she was back-piston fucked!!