All very interesting posts...and I agree its a great way to establish control. Punishment...well may its good but I like giving a more "hands on" discipline ;-)

I did however want to mention 2 things about male CR.

1. When a man does cum it sucks (no pun intented) a lot of energy out of him. Science says its takes 2 min for the sleep hormone to be released in man's body after orgasm...a woman it takes 40min. So by NOT ALLOWING him to cum he actually becomes more energetic.

2. Leave a man in a continuous state of CR for a while often leaves him semi-rigid in its normal state...and makes him last longer if he has been an excellent boy and you want to screw his brain out.