Simply put, your mum got f*cked by the bad guys.As I said before, it'd have been easier if you'd defined your terms.
Actually, to some extent I would argue "neither." But it all depends on your definition.
FromYou must be registered to see the links:
The Melissa arc in this story meets certain aspects of this definition - forced against her will via blackmail. But there is zero evidence she's been "mind-bended to enjoy and/or accept the experience" or "ends up deciding to continue the affair with the instigator afterwards."
So, if your definition only includes "is blackmailed into cheating on her husband," then yes, but if you expect the extended version, then no.
Note that there were intense arguments early on in this thread as to whether or not this story constituted NTR or "just blackmail." The NTR tag and disclaimer in the OP was added so that the people that detest that would (if they paid attention) stop bitching over it. But, as with many things, "it all depends on your definition."
Your girlfriend might get f*cked by bad guys in next update, but nothing happened yet.
If you put yourself in the bad guys perspective, it would be netori.
If you put yourself in dad's prespective, it's netorare.
But you play neither of these characters in the game. lol
Interesting story though.