Luminosity by mresundance (PG-13)

[scienceofdeduct.livejournal.com]

Fandom: SHERLOCK
Pairing: Victor Trevor/Sherlock, John/Sherlock (demisexual)
Length: 4000+ words
Author on LJ: mresundance
Author Website: DreamWidth masterlist, AO3, and LJ fic tag
Why this must be read:

Asexuality isn't always black and white. Sometimes there are shades of grey. Demisexuality is an expression between asexuality and sexuality. There really aren't that many fics which explore the demisexual idea. For those who fall in this in between area of the spectrum, this story is a great way to introduce the concept and help people understand just what demisexuality is.

Luminosity at:
LiveJournal
DreamWidth
AO3

Also available as an audiofic.