COCK AND BALL TORTURE (CBT) IS A SEXUAL ACTIVITY INVOLVING APPLICATION OF PAIN OR CONSTRICTION TO THE MALE GENITALS. THIS MAY INVOLVE DIRECTLY PAINFUL ACTIVITIES, SUCH AS GENITAL PIERCING, WAX PLAY, GENITAL SPANKING, SQUEEZING, BALL-BUSTING, GENITAL FLOGGING, URETHRAL PLAY, TICKLE TORTURE, EROTIC ELECTROSTIMULATION OR EVEN KICKING.