I locked my husband in permanent chastity while he reaches fitness goals I set for him.
If you are looking for custom ballbusting content I like to go HARD on him. Biting, Punching, Kicking, Slapping, Crushing, Trampling... or anything you can think of that hurts the pathetic flesh between his legs.
I also enjoy SPH, CBT, Chastity, and Ruined orgasms. Let me know what you have in mind!