My mother-in-law started spanking me in my b'day suit, on my 50th b'day. I squirm the same way, but are much more vocal, & she laughs when I start begging, & promising her anything she wants. Then she makes me cum.
Hardcore stuff. There is no remorse from her, like even a soothing hand placed on his poor buttocks or exposing herself in any way, all to deliberately prevent him from experiencing any chance of arousal. Sexual humiliation thus avoided, she prevents any chance of pleasure being derived from the experience, poor sod ... or from experience just hates cum on her dress?