Raising her butt with the carpet achieves many purposes. Perhaps the most important is that it gives the spanker a fairly good idea what areas of her rear end will be in contact with a wooden chair when she later must sit on it. He can then aim the blows so that she will still be squirming long after the spanking is over. And squirming conspicuously in front of others.
"...the girls are strapped to the bare military metal beds in an extreme position, with their feet by their heads, spread wide, so their butts, pussies and anuses are fully accessible..."
Raising her butt with the carpet achieves many purposes. Perhaps the most important is that it gives the spanker a fairly good idea what areas of her rear end will be in contact with a wooden chair when she later must sit on it. He can then aim the blows so that she will still be squirming long after the spanking is over. And squirming conspicuously in front of others.
That is from a NuWest 8 1/2 x 5 1/2″ booklet about reform school spankings.