I find it's a unique combination of physical and mental stimulation when I spank my subs. I find it very mildly erotic to be spanked and could care less. But spanking my girls has a much more powerful mental component it. It seems to highlight submissive aspects of their nature, that they both subconsciously crave and avoid. It is so innocent and both physically pleasurable and painful. Mentally I've found its quite humiliating for them varying with the context and mood.

I'm surprised to have become quite attracted to spanking- I love the mind shift that occurs in the spankee. Submissiveness, wide eyed, red bottomed, little tears, and topped off by a very wet pussy. Interesting combo for sure.