So, there is no problem in not talking to them again? I say this because one of the main quests is "Pay for adult time"
I see. That's something we missed. It should be in the Oter Haven's Quests.
It doesn't affect the main quests. It only affects the brothel-related elements.
Answer: You can safely skip the Succubi and not affect the other storylines. One unreleased side character might be impacted, but now that we know there might be players like you, we'll work around it.