Stroke of Genius | Rick Gellert and his amazing masturbation machine

What they sold the man and still sell today is a plastic briefcase with a small motor bolted to the inside. Attached to the motor is a rubber hose, and attached to that is a plastic cylinder two or three times the size of a man’s erect penis. It’s called the receiver and it looks like a bong. Before getting started the user blows into another tube to pressurize the air between the cylinder and a flexible rubber liner. Then he lubricates the rubber sleeve, slides in, and turns up the speed. It’s a real-life

Source: Stroke of Genius | Feature | Chicago Reader

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