Male Chastity is the act of
locking a male's genitals into a steel or plastic device to prevent ejaculation, masturbation, and even obtaining an erection. These devices are commonly used today in Domination/Submissive relationships as a means of
surrendering power/control to the dominant person (known as a "
Keyholder"). Although, it can also be used by couples to ensure their partner remains faithful.
Dude, my girlfriend locked me in a
male chastity device from
Locked in Lust after she caught me sleeping with
the girl next door.