Cock and ball torture (CBT) is a sexual activity that involves the application of pain or constriction to the male genitals.

This may involve directly painful activities such as genital piercing, wax play, genital spanking, pinching, ballbusting, genital flogging, urethral play, tickle torture, erotic electrostimulation, kneeling, or kicking. The recipient of such activities may receive direct physical pleasure through masochism, emotional pleasure through erotic humiliation, or the knowledge that the play is pleasurable to a sadistic dominant. Many of these practices carry significant health risks.

Ball stretcher

A metal ball stretcher and cock ring, which forces the erection of the penis
A ball stretcher is a sex toy used to lengthen the scrotum and create a sensation of weight that pulls the testicles away from the body. This can be particularly pleasurable for the wearer, as it can intensify an orgasm by preventing the testicles from moving upward. This sex toy is designed to cause the testicles to hang lower than normal (temporarily or, with regular use over a long period of time, permanently) and can be potentially harmful to the genitals, as blood circulation can easily be cut off if tightened too tightly.

Most ball stretchers are made of leather, rubber, or stainless steel. Leather stretchers usually fasten with snaps and wrap around the scrotum, with the testicles underneath. Rubber stretchers stretch enough to allow the testicles to pass through and can be a tube or a ring, with multiple rings added to create the desired length of stretch. The length of a stretcher can range from 2 to 10 cm (1 to 4 inches). Steel stretchers often use weight in addition to, or instead of, a physically constrained tube to hold the testicles away from the torso.

Steel weights must be disassembled to securely fasten them around the scrotum. The removable segment can be held in place by friction, magnets, a set screw, or cap screws, and can range in weight from 150 grams to 1200 grams or more. A more dangerous type of ball stretcher can be made by simply wrapping rope or string around someone's scrotum until it is stretched to the desired length.

Ball crusher

A ball crusher is a device made of metal or often clear acrylic that slowly squeezes the testicles by turning sets of nuts or screws. The tightness of the clamp depends on the pain tolerance of the person being used. A ball crusher is often combined with bondage, either with a partner or alone, or with other types of torture or impact play.

Parachute

A parachute is a small collar, usually made of leather, that is fastened around the scrotum and from which weights can be attached. It is cone-shaped, with three or four short chains underneath to which weights can be attached.

The parachute is used as part of cock and ball torture within a BDSM relationship, providing constant resistance and a squeezing effect on the testicles. Moderate weights of 3-5 kg ​​(6.6-11 lbs) can be used, especially during bondage, although much heavier weights are occasionally used. Smaller weights can be used when the participant wearing it is free to move; the swinging effect of the weight can restrict sudden movements and provide a visual stimulus for the dominant partner.

Humbler

A humbler is a BDSM physical restraint device, a cock-and-ball bondage toy used to restrict the movement of a submissive participant in a BDSM scene. It consists of a testicle cuff, usually a ring, that is clamped around the base of the scrotum while being pulled back between the legs. This is mounted in the middle of a rod or pair of rods that run behind the thighs at the base of the buttocks. As a result, the wearer is forced to fold their legs forward, as any attempt to straighten them even slightly pulls hard on the scrotum, causing anything from significant discomfort to extreme pain. In this way, the wearer is prevented from standing upright and is forced to remain hunched over or crawl on all fours.

Testicle cuffs

A testicular cuff is a ring-shaped device that can be placed around the scrotum between the body and the testicles. When closed, it prevents the testicles from passing through. A common type of testicular cuff consists of two connected cuffs, one around the scrotum and the other around the base of the penis. Testicular cuffs are one of many devices used to restrain the male genitals. A standard padlock, which cannot be removed without a key, can also be secured around the scrotum.

Some passive participants enjoy the feeling "