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1. lessons of sin by unknownsapphic

   Fandoms: TWICE (Band)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/F
   • Complete Work

   02 Aug 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Im Nayeon/Son Chaeyoung
   • Im Nayeon (TWICE)
   • Son Chaeyoung
   • Tutoring
   • Horny Teenagers
   • Age Difference
   • a huge age gap
   • Professor Nayeon
   • High-school Chaeyoung
   • Manipulation
   • Seduction
   • Strap-Ons
   • Shameless Smut
   • Pervert
   • Consensual Sex
   • Unnie Kink
   • Top Son Chaeyoung
   • Bottom Im Nayeon (TWICE)

   Summary

   A thirty-five-year-old professor, Nayeon, accepts a tutoring job for nineteen-year-old Chaeyoung, only to realize her student has a dark fascination with her.

   Language:

   English

   Words:

   22,623

   Chapters:

   2/2

   Comments:

   20

   Kudos:

   94

   Bookmarks:

   18

   Hits:

   2,086