I beat-off using my left hand. Get your dick hard and place your left hand on top of it so that your wrist is rubbing on the underside of your cock head. Slowly slide your hand down your dick, keeping your wrist in touch with the underside of your dick, and rub your palm & fingers over your balls.
Go slowly, up & down, up & down, and revel in the sexual pleasure. When you're ready to cum, start sliding up & down furiously until you shoot. Wonderful!!!