I love watching clips that feature models who have unique reactions to the tickling. Sometimes I'll play a clip a half speed just to catch all of the expressions a lee makes throughout the process. There's one model in particular that comes to mind and that's Sasha from TickleTouch. During tickles, if one of her weak spots is exploited, her laughter will turn silent and we're left watching a woman with a gaping mouth struggle to remain composed.
If men are on the receiving end, its sorta fun to watch their junk uselessly flop around. I feel like the penis is like a man's central driving force?? And to see it, especially after its been spunked? Just kind of, without purpose, well that's exciting.