For people complaining about not getting high enough base Charm, I did something completely different and requiring almost no changes.
It's kinda easymode for a Slutty Karryn, but it doesn't tamper at all with the leveling process.
In RemtairyKarryn.js, search for a single line:
num -= Math.round(this.slutLvl * 0.1);
It's the only reference to this.slutLvl in that file.
Replace the first minus sign to a plus.
num += Math.round(this.slutLvl * 0.1);
There. Now knowing Karryn's a slut actually gets the prisoners hornier, so her slut level INCREASES her effective charm instead of lowering it.
No changes to how Accessories or Passives work to increase or decrease Charm, no change to the leveling system or decreasing the maximum in other stats by trying to increase her Charm that way. Just prisoners that find sluts attractive.