The tendency for Fan Fic and other fan works to include an improbably high proportion of characters that are homosexual/bisexual/pansexual, even if the original work contains no indication of such a thing. Works possessing a Cast Full of Pretty Boys or an Improbably Female Cast are especially susceptible to this, as there's virtually no choice for shippers to avoid this route other than applying a Gender Bender or Rule 63, or adding in their own original character, which by many is considered far worse. Often considered a form of Canon Defilement and Character Derailment, although obviously those perpetuating it mostly disagree.
Compare and contrast Everyone Is Bi. If this occurs in official works and sanctioned adaptations, then it's a Cast Full of Gay. Adaptational Diversity is a common reason behind this trope. Sometimes fanfiction writers just want to see people like them. More than that, though, it's the usual suspects.
- Denounce the Evils contains a lot of casually queer characters. This includes Jessie being bisexual, James being bisexual and implied to be genderfluid, Cassidy being bisexual, Harley being an Ambiguously Bi trans woman, Pikachu having Ship Tease with Meowth, and Ash's mother Delia having Ship Tease with Jessie.
- In the Mob Psycho 100 fanfic Discovery Channel, all of the male cast members are dating. Reigen and Serizawa, Teru and Mob, and Ritsu and Sho. Tome even mentions this in Chapter 12.
- My Lesbian Life with Monster Girls: Monster Yurisume: Main character Yuisu, as well as most of her homestays, are gay or bisexual.
- Hetalia: Axis Powers fanfic Gankona, Unnachgiebig, Unità: Most of the males are either gay or bisexual.
- Tangled Up in Indigo: Most people think Afterschool Tea Time is an all-lesbian rock band. Sawako started the rumors in order to give the band a gimmick. By the end of the fic, only Yui is confirmed as interested in girls, though the others are Ambiguously Gay and Ambiguously Bi. The fanfic writer made the story to subvert fics that portray the entire cast as queer.
- The only heterosexual couple in Eyes Wide Open All the Time broke up two years before the story starts. The rest of the pairings are between two gay or bisexual men.
- The My Hero Academia fanfic Nutricula has the entire named cast being at the very least bisexual, to the point that Word of God has stated that the only cishet character in the story is Endeavor.
- Horatio Hornblower:
Bush: You better have a look at this... [hands Kennedy a spyglass]
- Harboured & Encompassed: Every romance and relationship is this fanfic is queer. Archie and Horatio are gay (and later it's Archie plus Horatio plus Will who are in a poly-amorous relationship). Styles and Matthews are gay (they're lower-deck Heterosexual Life-Partners in canon; here they work at the library, are gay and live together). Hannah and Will's sister Victoria hit it off, too, being lesbians or bi. Even Jack Simpson is a gay rapist. The only heterosexual couple are actually Archie's parents.
- Tendency to have everyone gay in Horatio Hornblower fanon is spoofed in a Fan Vid appropriately called "Hornblower Spoof". Horatio wants to get it on with Archie, Hunter watches them, Bush, Buckland and Kennedy ogle Hornblower during his naked Shower Scene... and so on. And Kennedy is honestly surprised that straight people make an appearance. But what can you do when this Wooden Ships and Iron Men miniseries has only a handful of female characters, and only one of them is embraced by the fandom as a cool one.
Kenedy: Um, k... [sees man and woman kissing atop of watchtower] Straight people!! [laughs and watches some more]
Hornblower: I never knew they existed in this series.
Bush: Oh stop. We're not that weird.
- Highlander in spades because of all the male characters. Theres probably more Duncan/Methos than other pairings combined. Duncan/Richie has happened as well. Methos and the Horsemen are ripe for it and there are probably Duncan/Connor fics as well.
- She Kills Monsters: Quite literally stated that everyone in New Landia is gay.
- As the page image shows, this is very popular in the Touhou Project fandom due to the almost entirely female cast: of the four canon human(-looking) males, one was killed as a child eons ago, another turned into a monster and was killed by Reimu, and one's a cloud (so in turn the remaining guy is the target of just about everyone else in the cast in non-yuri, non-OC doujins). The canon relationships feature no romance whatsoever.
- A video on Jandrew Edits takes their TNG video edits directly into this, by bringing LaForge into the existing Triang Relations between Picard and two Rikers.
- In an article by The Onion, every celebrity came out as gay.
- Roadside Assistance is a Yang/Weiss fic that ends on four different same-gender couples. It's also mentioned that Ruby and Yang's father is married to his former teammate Qrow.
- Most of the cast of Ruby and Nora are LGBT.
- The rewrite RWBY: Scars makes much of the core cast explictly queer: Ruby is an asexual trans girl who is in a relationship with a girl, Weiss is lesbian, Blake dated Adam in the past but begins dating Weiss midway through the fic, and Yang is implied to be bisexual (and is explicitly attracted to a woman, more specifically Weiss). Amongst the extended cast: Jaune is a trans boy, Neptune and Sun are dating, Penny becomes Ruby's girlfriend early on, Velvet and Coco are dating, Weiss' brother Whitley is a trans boy, and it's implied that Raven is a lesbian.
- Silver Rings and Golden Hearts is a Qrow/Ironwood Kid Fic that also contains Summer/Raven/Taiyang, Port/Oobleck, Junior/Roman, and Glynda/Willow.
- With the exception of the villains, almost every protagonist in Team LVDR is LGBT.
- For Eternity, a web remake of Rainbow Brite, has all the Color Kids (as well as its versions of Rainbow Brite, Stormy, etc) as male. Considering that the only females in that universe are childlike temple guardians or the four mother Goddesses, this is justified.
- The Oversaturated World: Discussed in Sonnenunterganglied:
Sunset: Sunset took a deep breath, then said, "I have to ask; given all the student bodies of all of the versions of Canterlot High, is there a single heterosexual girl among them?"Derpy "Well, there's me."
- RainbowDoubleDash's Lunaverse: Of the Mane Six, Lyra is out-and-out gay, Cheerilee bi (with one accidental marriage to her college roommate and a date with Rarity), Trixie is asexual but with the occasional hint she and Raindrops have burgeoning feelings for one another, while Raindrops's only canon romance is with a guy, while Carrot Top and Ditzy are strictly het.
- SpongeBob SquarePants. Bikini Bottom is the gay district without any appearance from Sandy Cheeks whatsoever.