I have known women that could go through almost endless cycles of spanking and orgasm. Those women are not for me, I can’t stay up that late. Grin.
An orgasm before a spanking does not have the same degree of reduced libido on a woman as it does for a man. [This is my opinion only] I say this because some women are like the Energizer Bunny - they can keep going and going. The desire for more spanking and orgasms just does abate as quickly for a woman as it does for a man. I think most men and women will agree that after two successive orgasms most men are spent and ready for a nap.
I know that a spanking is the last thing I want after an orgasm. For men that are into real punishment, it would make sense to get rid of the rigidness before the spanking to take all the pleasure out of the spanking.