Kinda crazy to think there isn't a single doujin depicting Kaoruko having normal sex with Rintaro. All of them are either NTR or reader POV. And the manga has been around since 2021. I guess people think Rintaro is really boring, which I don't blame them for.
Hews has balls drawing Kaoruko Waguri porn, potentially drawing the ire of the fandom. And he’s purposefully ambiguous about who Kaoruko is having sex with. Is it Rintaro? Maybe, maybe not. It’s NTR if you wish it to be. Hews is already the best one I’ve seen.
All the Rule 34 I see of Waguri is either NTR or AI. No sweet wholesome vanilla sex here. I guess it’s still true that "The more beautiful and pure a thing is, the more satisfying it is to corrupt it."