hi, love the game. I have a small idea two that may help.
a fellow game The Repurposing company uses switches and boxes to allow players to pick what they want to see, and has NPC roles for people in the world who deal in one kink or another.....that can help add quests and things for the player to do. I understand the idea of being no-rails....but maybe over time, a hints system can help them avoid or pick a fetish or idea.
so the start screen asks them what fetish/kinks they like to see...and you pick an NPC.
Here's an example:
Picking a male start with an NPC dominatrix leads to both Crossdressing and Femdom