An automatic sex machine, widely known as fucking machines, is a machine that penetrates you, either vaginally or anally, mimicking the motion and sensations you experience while having sex. Sex machines are perfect for BDSM activities, for people whom want to step up their masturbation sessions, and for people living with disabilities.
Automatic sex machines are usually mounted to a stand or a box, they can be designed to be ridden, or you can purchase a hand-held sex machine. You can usually swap the dildos or male masturbation strokers attached to the sex machine for whatever size and shape you desire. The attached dildo or masturbator sex toy is designed to thrust in and out at whatever speed you want, while you get into different sexual positions.