You always want what you can't have, and when your cock is throbbing against a chastity cage you want nothing more than to reach down and pump.  You want to beg me to unlock you.  But I know you don't really want that... you're a good boy - you have your priorities in order.   You're so much better for me when you're denied, you can be such a good boy for me.  You don't really want to be let out, and I certainly have no desire to release you.  The male orgasm, and those brief seconds of momentary release are nothing but a distraction from your real purpose - pleasing me, impressing me, being MINE.