This is a reward for good behavior for chaste males. A random time is set on a timer and not shared with the submissive. They are allowed to masturbate until the timer goes off but don't know when that will be. You can set it as short as 6 seconds and as long as 2 minutes (this is how long it takes most non-chaste men to orgasm). It's a most devious reward as you don't know if you will get relief or frustration!
