Wait what the fuck I didn't post in this? How'd that happen
I adore begging. It's my favorite thing. I think the core of this, for me, can be pretty much boiled down to a Damsel in Distress thing with a Bad Girl. Now there's a lot to boil off and when you get to just that the dish isn't gonna be recognizable, but they're bad girls in trouble due to the role they have in the story. They exist to be defeated. Because of that, this thing isn't really about sadism to me. I don't want there to be pain and suffering, just defeat and submission.
Begging is that, when the enemy realizes they're in over their heads and just throws themselves at the mercy of the hero. It's when the bad girl realizes that she's actually in trouble, and basically begs the hero to save her. Which is, of course, what heroes do. It may not be the most sexually charged action, but the emotional satisfaction of the good guy accepting a surrender without forcing the zako to do anything degrading is too much for me to not want that to happen. It's the action of surrender itself that's erotically charged for me.
I think it's interesting that a fake surrender, which does make the enemies shady, untrustworthy, and ruthless, doesn't change the outcome I want. If anything, the emotional satisfaction just gets higher if there's then a second, real surrender. Heroes enduring suffering by doing the right thing, but continuing to stick by their codes of conduct, is a deeply satisfying thing. I'm not talkin' about lawful stupid, these are my dang scenarios so it is actually the right thing to do. Also, thinking about it, that means the thing I like the most happens more than one time, so... I guess it makes libidinal sense too.