A guy’s dick is locked up in a cage or belt, usually with a padlock, so he cannot get hard, stroke, or fuck even when he is horny as hell. Scenes lean hard on denial and control, with a partner acting as the keyholder while teasing, edging, and milking precum until he is desperate and frustrated. It often shows long-term wear, strict rules, and the humiliation of watching other guys get fucked while he stays locked.