In this matriarchal society ever male is given one chance to prove himself trustworthy and virtuous.
Every man fails. Once caught masturbating his penis is locked up in his first male chastity device.
The woman have perfected many male chastity devices. For elderly submen there are moderately comfortable MCDs that are reserved for male who have reached total submissiveness.
Most are adjustable and can be loosened when the subman is properly obedient and submissive. Only to be tighten to give him a painful reminder of his status.
Other MCDs have receptacles for special attachments. Many are electrified and can be activited or manipulated by wifi. Punishment MCDs can be heated.
A very special MCD can masturbate the male for hours. Painful friction ruins any orgasms obtained and over sometimes left to run overnight when a subman needs an unforgettable lesson.