A CB is a commonly used abbreviation for a chastity belt
or cock cage for men, it is short for Chastity Belts, the English abbreviation for the chastity belt. There are chastity belts for men and women. The Dominant will usually keep the key to the chastity belt and determine when the chastity belt may be removed.
The Dominant holds the key, and becomes ‘Keyholder’
this to prevent a sub from having an orgasm, and even an erection can be forbidden. You can use a chastity belt for this. Within a TPE or pure D / s relationship, it also underlines the fact that the sub (and his sexual desires) is owned by the Dominant.