Probably to her boss?
Maybe I should Cheat that she hates HR and pull her out of her job asap?
You shouldn't have to Cheat to turn NTR Off, though.
This is just the way the event is written to make it sound plausible as a quick discussion where a trait of the character is being revealed. It serves no other purpose than that.
As it was said by Ennoch, this kind of discussion (which is also the same kind that happens in MC's business bathroom once it's a mixed bathroom gender and you go there to pass time) is just a way for you to learn sexy opinions that may not be told during the " Small Talk " stuff and that you may not want to have to use a trance training to get revealed either.
NTR Mod On or Off is ONLY (as far as I know) to remove the night event that can happen to Jennifer or Lily in MC's house, where there MAY be some """" NTR """" stuff happening. Just so you know what turning it On or Off does
That being said. Even with " NTR " Mod off, the mother does indeed have a story arc where you can make her suck her boss. But you are the one that have the power to (not) make her do it : you have to choose to tell her to wear sexy outfits for both interviews, and then, you have to tell her to charm her boss / blow him.
If you do not wish that she blows her boss, you can either make her lose the interviews, or if you're passed that, when she's asking what to do with her boss because she really want the job, you can just say you'll talk to him and in the end make it so she loses her job. There's always ways to get out of the situation. Therefore there is no forced NTR there regarding these talks / that arc.
And if you do choose to tell her to seduce the boss, then it's not pure NTR as you're consenting (i.e not being cheated on) which is why there is a need to de-couple the pure NTR meaning from the " Swinging / Hotwifing " in the game, meanings as if you're okay and consenting and that she comes back to you it's not NTR anymore, someone doesn't stole something from you, you're consenting to give them something, and that power dynamic changes everything. Because in this game, you're in control in almost all situations.