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1. Brotherly Advice (Jaehyun x Sion) by djsquared

   Fandoms: NCT (Band)  

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

   14 Jan 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Jeong Yuno | Jaehyun/Oh Sion
   • Jeong Yuno | Jaehyun
   • Oh Sion
   • Large Cock
   • Brother/Brother Incest
   • Porn With Plot
   • barely
   • First Time
   • Teaching Moments (Extremely Questionable)
   • Power Imbalance
   • Size Difference
   • Dirty Talk
   • Breeding Kink
   • Possessive Behavior
   • “For Your Own Good” Energy
   • Protective Older Brother (Gone Wrong)
   • mutual obsession
   • Taboo Relationships
   • things escalate quickly
   • No one makes good choices
   • Everyone Needs Therapy
   • Carpet Sex
   • Gay Sex
   • Top Jeong Yuno | Jaehyun
   • Jeong Yuno | Jaehyun Has a Big Dick
   • Bottom Oh Sion
   • Mentioned Jung Sungchan
   • Mentioned Tokuno Yushi
   • Sex Toys
   • Spit As Lube
   • AI-Generated Images

   Summary

   Sometimes your big brother teaches you how to ride a bike. Sometimes he teaches you… other things.

   Series

   • Part 5 of Forbidden Relations🔐

   Language:

   English

   Words:

   3,181

   Chapters:

   1/1

   Comments:

   4

   Kudos:

   18

   Bookmarks:

   2

   Hits:

   266