curioserto:
I rarely find the pain of a spanking unbearable.
I am the opposite, I need it to be unbearable. My best spankings are always punishment spankings at a domestic level, nothing sadistic. Play spankings no matter how hard they are, do not work for me, as there needs to be the pain+punishment relationship.
A few years back a doctor removed a cyst from my shoulder by squeezing it hard and it hurt like hell, but unlike a hard punishment spanking the cyst removal was unpleasant.