Ever wondered if a dominant man can wear a chastity belt?

Well, I did - and I explored this idea by writing two stories based on it:

Locked Dominant and a Good Girl in which an obedient, lovely submissive girlfriend is tasked with providing a key holding "service",

and

Locked Dominant vs Bad Girl in which a bratty submissive girlfriend locks her dominant partner to motivate him to be more strict and intense.