Cora's NTR is kind of an all-in or all-out kind of thing. But even though she goes all the way in her first NTR encounter afterward it is up to the player how far she wants to take it. She can opt-out of later encounters in other words or never say no to anyone ever as you prefer. She kind of has the same level of freedom as Rick, but not really as if you turn down the initial encounter with her coworker it basically disables the NTR path. But unfortunately, Rick is an asshole. You can make him more or less of an asshole with your decisions, but you can't change the nature of this scorpion or the frogs that he mounts.
I'm aware, that is why I asked if we had any future prospects to do so.
Yeah, that is something that bothers me quite a bit about the beginning of the game, it feels like initially it wasn't going to have multiple protagonists and then the author put that one choice in place because otherwise the anti NTR crowed would cry and then finally it became multiple protagonists and now we kinda get pretty much the same freedom when controlling Cora.
Not aimed at you just as an adendum because why not: It really isn't NTR it is cheating since we are the ones in control, NTR is when a LI is doing stuff behind the MC's back but people tend to not remember that.
edit: Just to clarify I have played the game before just paused playing any VN's for a while, so yeah I'm aware that most of her possible romantic partners are not assholes that was just a jab at how in these games authors tend to either make every man an asshole MC incluced/excluded.