Spanking
It is the perfect punishment for everyone alike when they detract from the path of righteousness. The individual being punished undresses in front of the punisher exposing his/her genitals in a humiliating way, so they remember this next time they do same mistake, after which their bums get sound beating either with open hands or implements. Everytime the male or female sits, they will remember to not repeat the offence.
Example:
Lover 1: If you'd been given a spanking as a child, you wouldn't have been this characterless brat you are. Never too late, from today I'll personally make sure your bum understands that. With your buttocks and genitals exposed, you might start remembering you are an adult honey!!
Lover 2: Oh honey, I am so sorry. This will not happen again please forgive me!!!
Lover 1: Grace time is over, take off your clothes!!! Else I'll spank you harder!!!
Lover 1: If you'd been given a spanking as a child, you wouldn't have been this characterless brat you are. Never too late, from today I'll personally make sure your bum understands that. With your buttocks and genitals exposed, you might start remembering you are an adult honey!!
Lover 2: Oh honey, I am so sorry. This will not happen again please forgive me!!!
Lover 1: Grace time is over, take off your clothes!!! Else I'll spank you harder!!!