The bar job has its own passives, on top of the regular passives you may earn if the prisoners molest you while you're serving them drinks.Damn lol
Regarding the bar, you're saying I should avoid working there if I wanna beat the game?
What would an ideal slut level be at the end of level 1?
You absolutely *can* do it, but you have to be careful if you want to remain "pure".
As for ideal slut level, I think the fact that it's 13 already shows that you've let something happen to Karryn that caused her to earn passives, and all passives are undesirable for a purity run.
Certain sadism passives are essentially unavoidable, as are some of the staring related passives (that lead to Karryn learning Cock Stare), but that's about it until you get to the level 2 boss.