I'm kinda lost with the plot ok this. I'm guessing they're new people and want to do things the hard way, but then there's the mother of that mom-beating scum, and, what's with the hand of the cocky one? Am I supposed to remember the guy?
It's like, they're really leaving their Bad Boys days behind, aren't they? No wonder they sigh so much.
At least they have the conscience to realize that.
I want to add that there's indeed other fetishes at least a the same level as NTR, but netorare is special because it can be done ON TOP OF all of them, as far as I know.
To mention a few: mutilation, mind control, cannibalism, torture.