Hey brother, if you get in touch with me, I'd be glad to share the code to this project that has been a "fire and forget" hobby thing for me from the get-go

but yeah, absolutely!! The game gives me LOTS of information (I just never was kinda aware... like... how to parse it) - and the whole thing with Vicky not having to get her number...wouldn't you believe it, I already tried something similar. i.e. the Vicky phone number being available from the get-go.
But I am guessing, you want MORE control over the girls? Like... how they behave? Or what exactly are you asking for?
It has been many many years since I did anything in a C dialect, I wouldn't be any good except for algorithms, which here we have no use for (and the last mod I ever worked on was for Jedi Knight in 1998, which has also been a while, that scripting language was great at that time).
And no, not asking for more control over the girls.
I basically meant a change in the current controls (and really, it's just a suggestion)
Currently (when I last tried the mod, maybe you already changed that?) there is a hotkey to select a girl and other ones to perform different actions (personality change, clothing, interaction).
Targeting a girl could replace selecting through the hotkey. Of course the other key then would only work if a girl is actually targeted.
Making 2 girls do something ...
the console commands require 2 persons
"sexualact intimacy player amy 10050"
this can be replaced with
"sexualact intimacy madison amy startsixtynine"
Of course it looks a bit silly if two girls do that, there is a strap on clothing item for most girls and other animations (like cunilingus or making out) look good either way.
This would require to have two girls selected however, that could be a bit tricky when it comes to the interface.
I don't really need more control. Sure, getting the relationship might be useful if the player fucked up, but personally I would not see much gain in getting that.
I would not know how to get Vicky in really, my idea would be to start or complete the last quest step to get her in the game normally. In previous versions it was possible to just warp her into the area using the console commands, but at some point that stopped working and before that she was not "initialized", meaning she just stood there, had nothing to say and would not give the player any quest. She would not even walk around.
So I guess that last quest step has to be completed for her to actually work.