A ball tie is an intricate and secure bondage position that binds the submissive partner into the shape of a ball. A person in the ball tie position will be bound with their knees to their chest and ankles against their butt. This is usually accomplished by binding the thighs, knees and ankles together and securing the legs to the torso. The hands can be bound in front at the knees or behind the person's back. A gag is also often placed in a ball tie victim's mouth. This position sounds extreme, but some people find it very erotic.