Cock and ball torture from Wikipedia the free encyclopedia at en.wikipedia.org. Cock and ball torture CBT is a sexual activity involving torture of the male genitals. This may involve directly painful activities such as wax play, genital spanking, squeezing, ball-busting, genital flogging, urethral play, tickle torture, erotic electro stimulation or even kicking. The recipient of such activities may receive Direct physical pleasure via a masochism from knowledge that the play is pleasing to a sadistic dominant. Image electro stimulation applied on a penis. Contents, section one in pornography, section 2, ball stretcher, section 3, parachute, section 4, humbler, section 5, testicle cuff. Section one in pornography, in addition to its ocasional role in BDSM pornography, tamakeri (玉蹴り) (literally ball kicking) is a seperate genre in Japan. One notable actress in tamakeri is Erika Nagai, who typically uses her martial arts skills to knee or kick men in the testicles. Section 2 ball stretcher, a ball stretcher is a sex toy that is fastened around a man in order to elongate the scrotum and provide a feeling of weight pulling the testicles away from the body. While leather stretchers are most common, other models are made of steel rings that are with screws, causing additional mildly uncomfortable weight to the wearer. The length of the stretcher may vary from 1-4 inches, and the steel models can weigh as much as five pounds. Section 3 parachute, a parachute is a small collar, usually made from leather, which fastens around the scrotum, and which weights can be hung. Conical in shape, with three or four short chains hanging beneath, to which weights can be applied. Used as part of cock in ball torture in a BDSM relationship, the parachute provides a constant drag, and squeezing effect on the mans testicles, moderate weights of 3-5 kilograms can be suspended especially during bondage. Smaller weights can be used when the man is free to move, when the swinging effect of the weight can restrict sudden movements, as well as providing a visual stimulus to the dominant partner. Section 4 humbler. A Humbler is BDSM physical restraint device used to restrict the movement of a submissive male partner in a BDSM scene. The humbler consists of a testicle cuff device that clamps around base the scrotum mounted in the center of a bar that passes behind the thighs at the base of the buttocks. This forces the wearer to keep his legs forward, as in any attempt to straighten the legs even slightly pulls directly on the scrotum, causing from considerable discomfort to extreme pain. Section 5 testicle cuff, a testicle cuff is a ring shaped device around the scrotum between the body and the test-.