Control Bestow Therapy, is a sub-form of Cock and Ball Torture. This practice is the first option to deal with the emasculation/social castration anxiety young boys usually suffer during puberty.

The procedure consist in offering the boy a total control over his father's testicles. In order to prove he has no hostile intentions towards the boy's genitalia or masculinity, the father, or father figure, assumes a submissive role and permits any form of approach from his son towards his own genitals.
Regular exercise of this practice allows young boys to gain self confidence, facilitates emotional maturation, and reduces stress.

Images warranting this tag should usually be tagged with incest_(lore) although adopted ans surrogate father figures are acceptable; as well as the Cock and Ball Torture. But only images with the younger male hitting/hurting the mature male's testicles in some fashion. This tag should never be used if the parent is harming the child's testicles.