I'm fairly vanilla, I admit that. For me personally, the loli genre plus taboo impregnation harem with dubious roleplay is as far as I go. Even that is extreme to many people.
With every kink, there's a mild and a wild version. A softcore and a hardcore variation.
Just my opinion here:
Finding the balance and giving players an "out" could be one option - if you, the dev, decides it's worth working on.
What I have discovered while writing, rendering, and animating in the game I work on:
Lewd Town Adventures, is that sometimes going to the darkest, wildest, messiest, and most psychologically challenging area first makes toning that down, editing things out, as well as making bruises, fluids, and tortured expressions less - can be easier.
Similar to filmmaking - screenwriters may craft 300 pages, but then have to cut it to 90. Producers, directors, and performers then have to record every possibility in 2-3-100 different ways. The editor, in the end, decides if we get Justice League (120 min) or the Snyder Cut (214 min).
My point is - as crazy as making different variations can be, it could be as simple as making such events modular - with variables triggering what is shown to the player. Di they choose the full BDSM route? Or the milder option? Do players want actual blood, sweat, bruises, and tears? Or simply hints of those things?
I'm not trying to tell you what or how to create things. This is simply brainstorming to explore various options, take them or leave them. Because, I'm sure - as intelligent as you are - you likely have already susse4d these things out without my input.