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• Sherlock's Experiment by SeagullGuzzler69

  Fandoms: Sherlock Holmes & Related Fandoms, Sherlock (TV)  

  • Teen And Up Audiences
  • No Archive Warnings Apply
  • M/M
  • Work in Progress

  19 Oct 2025

  Tags

  • No Archive Warnings Apply
  • Sherlock Holmes/John Watson
  • Sherlock Holmes
  • John Watson
  • Mrs. Hudson (Sherlock Holmes)
  • Johnlock - Freeform
  • Slow Burn
  • Emotional Manipulation
  • Friends to Lovers
  • Emotional Intimacy
  • complicated feelings
  • Tension
  • Light BDSM
  • Sexual Content
  • Angst and Fluff and Smut
  • Anal Sex
  • Anal Fingering
  • Oral Sex
  • Masturbation
  • Mutual Masturbation
  • Masturbation in Bathroom
  • Erections
  • hardening
  • Gay Sex
  • Male Homosexuality
  • Accidental Voyeurism
  • Bottom John Watson
  • Top Sherlock Holmes
  • Dominant Sherlock holmes
  • Slightly submissive John Watson
  • blowjob
  • Precum
  • Sexual Frustration
  • Power Play
  • Romance
  • I'm Bad At Tagging
  • just read this
  • Give me kudos I beg

  Summary

  When a case leads him nowhere, Sherlock Holmes, fascinated by human emotion, sets out to study love scientifically, using John Watson as his primary subject. What begins as a detached experiment, measuring reactions, testing attraction, and attempting to control affection, slowly transforms as Sherlock notices subtle signs of connection and intimacy he hadn’t anticipated. As days unfold and his “observations” deepen, he realizes that his feelings are no longer academic: he loves John.

  TLDR: Sherlock Holmes begins an experiment to study love, but through his observations he discovers not only his own feelings for John Watson, but also that John feels the same way.

  Language:

  English

  Words:

  9,551

  Chapters:

  6/30

  Comments:

  14

  Kudos:

  75

  Bookmarks:

  11

  Hits:

  826