Ahh my apologies I thought I wrote that down too lol, usually doing the corrupted versions for helping the tribe, for example giving a lust potion to the acolyte when she wants to enter the temple and when you meet Rhot in the swamp and he asks for a BJ, say yes. Also I believe during the fight against the lizard warrior if you raise their lust meter high enough, to the point where they expose their cocks, and then submit it should raise the lust for the lizard tribe (you may have to do this multiple times just to raise it by 1 but it should work I think). Essentially anytime you try to calm down various members of the tribe libido just go for the corrupted side of things. So have lust potions and corrupted health potions I believe on hand and provoke sexual encounters.