
This is just my guess/estimate based on how much is being adapted into chapters for the manhwa, so around:
Chapters 28-31 should be the start of the next bath makeout scene+pussy eating
and the time they finally go into pound town should start around:
Chapters 40-45
Link to novel If anybody is interested, it should lead you straight to ch 36 which is where we are in the manhwa currently:
https://novelbin.com/b/flowers-are-bait/chapter-36