There are a significant number of cases where we find images on the internet of girls getting their backsides spanked, strapped or caned and then the next thing we see them clutching, holding or rubbing their bottom to try to lessen the pain.
I think this is just plain wrong and needs to be seriously discouraged. I appreciate that it may be an almost instinctive reaction and may actually achieve very little of what is intended.
However, the point is that the intention is quite clearly to lessen the pain and provide some degree of comfort and that in itself is totally at odds with what is intended by the person giving the punishment. Putting it simply, spanking is meant to hurt, and not just for the duration of the punishment itself but for some time afterwards.
Rest assured that any young lady going over my knee and having her bottom spanked will still be feeling the stinging some not inconsiderable time afterwards and that is every bit as much a part of the punishment as the scorching while it's actually happening.
On one level, rubbing her bottom to ease the discomfort is extremely disrespectful to the spanker who has given his time and effort into delivering the punishment which she is now trying to negate. Looking at it another way, it can be seen as a form of cheating - the person administering the punishment has made the decision of how long and hard to spank with the explicit expectation of it continuing to sting for some time afterwards and she is trying to circumvent that. It is really no different to if she had tried to wear an extra pair of knickers or lied to try to get her punishment reduced.
Any of those methods of cheating would almost certainly warrant additional punishment - quite rightly - and trying to cheat by rubbing her bottom shouldn't be treated as any less serious.
I would suggest that any girl who is having her bottom spanked for misbehaviour, should be made fully aware that when the spanking ends she is required to stand against the wall, lie face down on the bed, stand to attention while being rebuked or whatever. Furthermore it must be made clear that if she is so unwise as to clutch or rub her bottom it will be regarded as an attempt to thwart a significant part of the punishment and will result in further meaures being taken.
That further punishment could be anything up to and including the possibility of the whole punishment being carried out again from the beginning so that her punisher can be sure that she gets to experience the full duration of the aftermath of the punishment without any comforting.
I suspect that few girl would ever make such a mistake twice in the case.