Sex machine brings a woman to orgasm

The sex machine stands right on the floor in the bedroom - a carpet, a bedside table, a regular lamp on the side. She is already fastened to it, lying on her back, her hands are free. The camera is filming from an angle, shaking a little - it looks like the phone is standing on something. The machine works evenly, it is quiet at first, then it starts to react loudly. He either grabs the sheet with his hands or touches himself from above. The cameraman comes closer, shoots close-up—everything is visible. The speed changes several times, each time she twitches and screams. It ends with her asking to turn it off - and immediately asking to turn it on again.