I can't seem to ever get the slutty trait rather than devoted. Weather I fulfill desires in the new sex system, rape into orgasms, use aphrodisiacs, nothing seems to pump up lewdness faster than loyalty and I always wind up getting devoted.
Still no luck. Based on looking at the save files fulfilling desires during sex seems to boost loyalty way more than lewdness, and I'm not finding any action that raises lewdness faster. I'm not using advanced rules at the moment since I'm trying to do it with a starting slave, and anal weather doing it to her or using aphrodisiacs to get her to agree to sex on day 1 and making her do it herself it still doesn't beat loyalty gains. I'm starting to think if you have your starting slave start with pliable you're just going to get devoted no matter what. There doesn't seem to be a way to force lewdness up faster than loyalty.
As a side note, the desires to have pussy used seems to be broken. No penetration position seems to fulfill it.
I think loyalty raises a lot by making them orgasm... like this I can get even captured rebellious slaves in my group after just one interaction. The lewdness rises a lot too, but cant keep up with loyalty.
maybe just unlocking the sexual action and sending them to brothel may get it (not sure if they get lewdness there, but they should).
btw, you can get both traits (Devoted and Slutty), its just hard to get the slutty one. You can use the regression potion to get the piliable trait again.
I once tried to get every stat up to 125, but stopped cause I couldnt get the slutty trait no matter what I tried... and cause going outside with slave courage base stat above 100 will reset it back to 100 (not sure if its a bug), so I got bored and stopped playing for a while >.>
I'll try the brothel and see what happens with advanced rules, but honestly I'm getting to the point where I'm thinking of just resorting to save editing. I don't really like to cheat at games like this, but given that what I want to do either isn't really possible or is just really tedious through the base mechanics I'm just going to deal if this doesn't work.
Update: Starting to think most lewdness increases are broken. I've experimented with several things and then saved and checked the slave file. The only thing I've found that actually increases lewdness for sure is the slave orgasmic/fulfilling desires and it increases loyalty more. Nothing else seems to increase it. Prostitution/exotic whore has no effect, neither does partial nudity rule, aphrodisiacs + no cumming, or any repeated sex actions I've tried. Seems like it just doesn't work correctly right now unless I'm just fucking it up reading the save file.