There is much that is positive to be said about this lovely activity. It’s one of those that stimulates all of the senses.
The visual of the hand smacking across the ass and it bounce and jiggle after, as well as the red hue that covers the ass after a good spanking.
That “smack” sound, naughty and fierce at once. And her adorable yelp.
The feelilng of impact on one’s entire hand, and the heat on the skin of the ass afterwards.
Even the smell of the warm skin, and it’s good fun to kiss and bite the ass cheeks after a good spanking, with the added bonus of her feeling a mix of pain and pleasure with her ass still being sensitive.
In general the whole round ass is a good place to spank (the ass cheeks, obviously don’t hit her hip bone), and it’s important to be thorough and cover everything. For getting all angles, use both hands while targeting both ass cheeks. Cock your arm back hand open but tight and swing.
That said, the bottom half of the ass cheeks carries with it a spikier punishing pain sensation than the upper half which is more “thuddy”, the skin is a bit looser so it has more give. This means that there is more of a “smackier” sound there too. So ulltimately, although one should cover the whole ass, I’d recommend still focusing more on the bottom half.