A handy guide to acronyms you might find on my blog and the blogs of other m/m romance writers.

GLBTQI - Gay, Lesbian, Bisexual, Transgender, Questioning (or Queer), Intersexed
M/M - Male/Male
M/F - Male/Female
F/F - Female/Female
HET - Heterosexual (or male/female)
MTF - Male to Female Transgender
FTM - Female to Male Transgender
TRANS - Transgender 
HEA - Happily Ever After
HFN - Happy For Now
GFY - Gay For You
POV - Point of View
MC - Main Character
NSFW - Not Safe For Work
WIP - Work in Progress
GRL - GayRomLit Retreat
NON-CON - Non Consensual Intercourse
DUB-CON - Dubious Consent Intercourse