Sazanka from Aquarion Evol is a yaoi fangirl and even has the ability to corrode things.
Fruits Basket has a swarm of these, albeit subtly. When Yuki makes a public reference to the number of times Hatori (the family doctor) has seen him naked, the girls are seemingly horrified... and simultaneously strangely fascinated.
What about Tohru imagining what wold happen if Yuki and Kyo got along?
Genshiken features both the "double" otaku Kanako Ohno (seen in the illustration above), who is into both Cosplay and yaoi (of muscular, middle-aged men), and the self-doubting Yaoi Fangirl Chika Ogiue, who initially is ashamed about her fetish but gradually grows to accept it.
The continuation introduces three more, including a crossdressing yaoi fanboy.
Excel Excel of Excel♥Saga Fantasizes about the men she is infatuated with (Il Palazzo and Key the Rock Idol) being Yaoi Guys in one episode.
Much later, Tamaki is annoyed when Kasanoda stops by to "visit" Haruhi, since the club hosts women. The Vice President ignores his complaints, indicating the firestorm of Squee! behind Haruhi; all the girls see is the normally grouchy delinquent shyly attempting to talk to a short, cuteboy.
Kyoya's older sister Fuyumi seems very attracted by the possibility of two young men on vacation together.
The entirety of the Haruhi Fan Club apparently ships "him" with Tamaki, and are overjoyed when they finally get together. Less so once they find out Haruhi's secret.
Negi: What's this? This man is naked and... Chisame: DON'T YOU DARE TURN ANOTHER PAGE!!! Haruna: It's kind of hard to get regular people to understand our hobbies. Right Chisame-san? Chisame: Then don't friggin' bring 'em-!!
Of course, the anime had to ruin it by ending when Moegi hit Konohamaru for the shadow clones of two girls.
In Onegai Twins, the girls who go on to become Those Three Girls are introduced watching through a window as the Yaoi Guy flirts with/teases the (very unamused) main character, and give commentary that sounds exactly like many a slash fandom discussion.
Just about every major female character in Kyo Kara Maoh!, Not surprising in a comedy featuring a male lead and his all-male Unwanted Harem. The trio of castle maids in particular can be seen at several points poring over charts apparently depicting the protagonist's romantic prospects, calculating odds and placing and collecting on bets as events occur and make various pairings more or less possible.
The Midori Days manga has a small story in which Seji Sawamura's childhood girl-friend sees him again. Seji finds out that she's now an accomplished doujinshi artist... who draws yaoi relationships between canon characters. Even at the end of the story, she draws another comic where "You (Seiji) and Master Yori get together at last! <3"
After Kaneru from Doujin Work gets introduced to yaoi doujinshi works as inspiration for her own material, her imagination tends to go rampant whenever she sees males interact.
In the manga, when drawing nude pictures of Justice, Tsuyuri drew a Justice and Hoshi yaoi scene... Much to Justice's distaste, considering he despises Hoshi.
The title character of Tonari no 801-chan.
Hungary, the Bokukko from Axis Powers Hetalia. This even extends to her liking to watch how cute guys hit on her husband Austria. In the real world, Hungary is "a mecca for gay porn videos" (Word of God points that out in the Author's Notes), so it sorta makes sense.
Hungary is actually the "mecca of porn" (both straight & gay) period. Filming on location is dirt cheap and a lot of people see it as a way of striking out which lead to an explosion of Hungarian porn stars in the '90.
There's one exception, though. Once she caught France looking lewdly at an oblivious Austria and, um, it didn't go well for him. In her defense, she was told to hit France by someone else.
Takako from Kannagi. She doesn't openly admit it, but in private she tends to have nosebleed-inducing thoughts about the boys in the art club.
Akiba is revealed to be one of the elusive yaoi fanboys.
Fumiko, Sanpeita's mother, in Kemeko Deluxe!. As flashbacks reveal, even in high school, she was drawing yaoi manga frequently. Though she keeps calling it "homo-dachi" (homo-friends) manga instead of the more common "boys' love", to the annoyance of her editor.
Yuuko from Xxx HO Li C loves to tease Watanuki about his closeness with Domeki, and suggests multiple times that maybe Domeki is the one destined for him instead of Himawari.
And to a lesser extent, possibly Himawari herself. Whenever Watanuki and Doumeki interact (read: bicker), she always comments on how they're both so cute and how close they are.
Hokuto, Subaru's sister, from Tokyo Babylon. She just loves pairing Subaru with Seishiro, and teasing Subaru about it. She frequently encourages Seishiro in his pursuit of Subaru. All because she sincerely wants her brother to live his life for something more than family obligation. It backfired horribly when "Sei-chan" turned out to be the Sakurazukamori, and reached Downer Ending extremes when Hokuto tried to "fix" it with a Batman Gambit that included her owndeath.
Reiji of Gravitation is much conflicted between her feelings for Shuichi and her feelings for his relationship with Yuki.
Not in the anime, but in one of the Code Geass sound dramas, there is a scene where Milly teases Shirley about being turned on by the idea of Suzaku and Lelouch getting it on. Shirley had already gotten a nosebleed and passed out, so we don't get to hear her response to this. Lampshade Hanging, much, writers?
Aikawa, Usagi's editor in Junjou Romantica. Her input greatly influences the content of the BL novels Usagi pens on the side. She also rather enjoys the fact that Usagi has found a male lover, and never helps Misaki out of sexual situations when he asks for it.
Kyoko is an even more disturbing one, according to the TSR comedy radio show (starring Gauron as their 3rd period teacher). She actually ships Gauron/Sousuke, to the point where she excitedly mentions that Gauron's attempts to rape Sousuke in front of the class are "fairly erotic" and muses that Sousuke seems to be on the "receiving end" (just in case people didn't notice it the numerous times it was mentioned before).
Hayate the Combat Butler. Izumi Segawa walks across her butler (and big brother) Kotetsu confessing his feelings of love at first sight to a forcibly crossdressed Hayate (of course, not realizing that the Cat Girl he was so attracted to was in fact a male). Izumi, knowing that Hayate was in fact male, told the two to "continue, and just don't mind me".
The title character of Fujoshi Rumi. Yoko Matsui, a popular girl who Chiba rejected is secretly one, too.
Prunus Girl: After her attempts to get Maki's attention were foiled by Aikawa, the girl from the first chapter went on to become a rabid shipper of Aikawa and Maki, as revealed in an omake. Complete with before and after picture.
Fudanshism: Most of the cast are Yaoi Fangirls except for the protagonist, who only has an interest in it as far as the girl he has a crush on is a huge fan of it... and the fact that he can only meet her when pretending to be a Yaoi Fangirl. His sister seems to also be a Yuri Fan too.
In Seitokai no Ichizon, the petite, soft-spoken Mafuyu has a just barely concealed interest in having Ken Sugisaki, the male protagonist, getting it on with another guy. In fact, her doujins feature Sugisaki getting it on with two fictional characters, Echo-of-death-nii-san and Nakameguro-senpai.
Aaaaaand as of episode 12, Nakameguro's existence is confirmed! Needless to say, Mafuyu gets totally hyper when she sees him and starts shipping and squeeing ipso-facto.
4koma series S.S. Astro has Nagumo Yuko, a teacher who frequently pairs off her coworkers. She's one of the main characters and tries very hard to hide her doujinshi activities from her childish friend and coworker Maki Izumi.
Yukari Tsukino from Ai Kora is secretly part of a yaoi doujin group, as Maeda discovers when he goes to visit her during summer break.
A few show up in a scene where Haiji is competing with Ayame to win Maeda's love. "Beautiful male love!" indeed.
The aptly named Harumi Fujiyoshi of Sayonara, Zetsubou-Sensei is a yaoi fangirl who draws manga in her spare time and ships men together on occasion. Her room has several posters and doujinshi of characters from other anime in homoerotic situations and she ends the last episode of Zoku reading a manga with the main character and another random guy having bondage sex.
Kanbaru of Bakemonogatari has an entire room full of BL. Interestingly enough, she might be a lesbian (it's unclear if she is attracted to Koyomi and thus bi or if he only thinks she is attracted to him as he is a self-centered unreliable narrator)but that's Truth in Television, as there are lesbian yaoi fangirls.
Durarara!! has Erika Karisawa, who happily and loudly ships pretty much any two men that so much as breathe on each other (including her friends. Kadota is not amused at finding out he's among her yaoibait). It doesn't help that she tends to Crack Ship...
Karisawa: Hmm, which one is better — Fans/Trolls or Trolls/Fans?
She had shown a particular liking for a Shizuo/Izaya pairing as shown when Shizuo says he's going to Izaya's place (to murder him...) and she sparkles with blush stickers saying that he must love him. Everyone (Celty and Kadota's group) cuts her off with a big "NO!".
Shizuo: I'm off to Shinjuku to murder Izaya. Erika: Hey, hey! Shizu-chan's definitely in love with Izaya. Two guys... Like BL! Celty, Togusa, Dotachin and Walker: No!
Also in the second OVA/Episode 25 when Izaya and Shizuo were fighting in the city, there was this exchange.
Walker: (Erika giggling in the back of the van while watching the fight) What's with you? Erika: Don't you see? Maybe Ikebukuro's number one couple is actually Shizu-chan and... (dissolves into giggles)
Dotachin: I really don't want to know
Then a few minutes later...
Erika: Shizuo's the attacker! Wait a role reversal! He's receiving now! Seme! Uke! Seme! Uke! Walker: Karisawa-san has completely fallen into Otome Road fantasies!
Meirin from Black Butler. Especially evident when she nosebleeds upon witnessing a naked guy (who has the default mind-set and body of a dog) being held in Sebastian's arms and licking his face. She also tends to get quite excited whenever she suspects Sebastian is flirting with Ciel, despite the fact that she has a crush on Sebastian herself.
Played with when Tencho, the super-otaku owner of the Otaku Headquarters store who despises all non-otaku, tests Sota's girlfriend for true otaku nature by groping Sota in front of her. When she fails to respond with appropriate enthusiasm, he brands her "worse than 3-D" and tries to get Sota to dump her.
"I mean, honestly, she really ought to at least get hot and bothered over homos, or something. You know... as a woman. It's as if she's clueless."
Played straight with rival store-owner Shigeto's college crush: Tencho correctly diagnosed her as a potential fujoshi and turned her on to Boys Love manga, which caused her to lose interest in "3-dimensional men" (to wit, Shigeto), thus earning Tencho Shigeto's undying hatred.
Higurashi no Naku Koro ni Kai has Furude Rika (yes, that one) talking about going to Comiket to pick up some Keiichi/Ooishi, in the preview at the end of episode 7.
A few of the girls seemed a bit too interested in Keiichi and Satoshi interacting in the first Kira special.
The entire female student body in Your And My Secret. Due to hijinks relating to the body-switch premise of the manga, Momoi (in Uehara’s body) jumped on stage during a school production to stop a kiss between Uehara (in her body) and Senbongi, and said she was jealous of all the time Uehara got to spend with Senbongi. All the girls in the audience got flustered, and the male student body president spent the whole night mass-producing yaoi manga of the two, which all the girls were shown reading and buying multiple copies of. Later, when Senbongi rebuffs the advances of some girls by saying he’s interested in someone else, they excitedly ask if it’s Uehara, and say they’d encourage such a relationship.
In Plica, the lesbian title character mentions to Misa, a woman she's interested in, that there's an LGBT film festival coming up to see if Misa seems interested (and thus, if Plica has a chance with her). Misa says she might want to go... to see the movies about pretty boys.
In CUTE×GUY whenever the tall and handsome Jun and the short and cute Mitsuru meet after school they attract these like flies, despite not being Yaoi Guys because they look so much like a Seme and an Uke out on a date. Jun making flirtatious comments towards Misturu doesn't help, nor does the fact that Jun does have a crush on Mitsuru but they still aren't Yaoi Guys as Jun is really a gender bentgirl.
The whole point of My Girlfriend's a Geek / Fujoshi Kanojo.
Yaoi fangirls occasionally pop up in Ai Ore! Love Me!. One noticeable scene is where Ran is getting a bit too close to the Bifauxnen Mizuki, which causes a couple of girls near-by to fangirl over them.
Mio from Nichijou is a closetYaoi Fangirl; she also draws her own doujins and will go to extreme lengths to stop anyone from seeing them.
Mayo Chiki! has the Mimamorugai who supported Subaru and Jiro's alleged relationship. Special mention goes to Nakuru who writes novels about it.
Possibly Candice from Märchen Awakens Romance. The Ghost Chest arc hints that she’s this since she doesn’t really seem to mind Phantom feeling up Alviss at all. She only minds if Alviss is trying to kill him.
Isogai from The Tyrant Falls in Love is suspected by fans to be a Fudanshi, since he never hits on Souichi but takes keen interest in his relationship with Tetsuhiro, even gossiping about it with Souichi's little sister.
Yamada Taro Monogatari: Chuusai, Suguira's friend. She seems to love the idea of pairing Taro with Suguira (including her imagining them together naked), and even passionately tells Suguira that she'll support him in his crush on Taro.
In D.N.Angel (episode 14) Satoshi rescues Daisuke from the pool and gives him CPR after he nearly drowns with all of the girls who were watching getting embarrassed/excited and calling it a "boy to boy kiss!"
The Yaoi Fangirls made a comeback when Daisuke fell ill at school and Satoshi carried him bridal-style to the infirmary. One of their female classmates is blushing and gushing in the background that "They look so good together!!", weirding out the boy standing next to her.
In episode 17 Daisuke and Satoshi are at the beach on a school trip and Satoshi helps dig Daisuke out of the sand. Some girls watching end up mistaking them for being gay for each other. Daisuke tries to deny it and asks Satoshi to agree with him but Satoshi smiles and says "Who knows?" causing the girls to squeal.
In episode 19 Daisuke and Satoshi are cast as the princess and prince of a school play respectively and it's said that they have to perform a love scene. The girls hearing this are shown to blush and get really excited.
In episode 20 there's a lot of girls in class that are shown to smile and look really excited when Satoshi and Daisuke perform a love scene for the play.
Lenalee in this scene from episode 94 where she blushes upon seeing Lavi glomp Allen in the anime in D.Gray-Man.
Not only that, but afterwards she keeps on staring at them together as though she's totally fascinated. Kind of makes the fact that most real life yaoi fangirls hate her pretty hilarious.
Hanaukyō Maid Tai La Verite episode 5. Ikuyo Suzuki likes to make yaoi doujinshi in her spare time and even drags the others with her to Comiket to sell them. Hilarity Ensues, but in the original manga it turns out that she has repeated problems with actually selling the doujinshi.
In Fairy Tail, the only thing that can make Juvia more of a Smitten Teenage Girl around Gray than she usually is (and that is quite saying something), is when he gets some Ship Tease (at least what is ship tease from her point of view, not necessarily from the audience's point of view) with another guy, usually Lyon. In the most recent OVA, she even has a hefty nosebleed when she thinks Gray is kissing with another guy. It is quite noteworthy with how grumpy she usually gets when Gray is just talking to other girls.
Minori from Outbreak Company is intent on educating the inhabitants of fantasy kingdom Eldant about the delights of yaoi (and looks to be succeeding).
The titular character of Empowered is one of these. Much of her collection of doujinshi is based off the other superheroes, much to their horror. The term "fujoshi" is also mentioned.
The male superheroes change their minds as soon as they find out that the doujins are written by girls, much to Emp's chagrin.
In the X-Women one shot, Kitty Pryde phases through a yacht and ends up catching two men in bed, in the middle of making love. Needless to say, she exits the boat and ends up falling in the water giggling and blushing.
Doctor Who Ongoing has an issue in which Amy and the Eleventh Doctor switch bodies. Rory, being Amysexual, doesn't care what she looks like, which leads to this page◊ right after they've switched back. Amy doesn't seem to mind.
Internet example: fanfiction.net. If yaoi fangirls were dragonflies, this site (the Kingdom Hearts section in particular) would be a summer pond the size of Texas.
Forget fanfiction.net, livejournal is where it's at. The thriving community of anonymous kink memes there lives and breathes yaoi - though het and yuri are around, the yaoi by far outstrips it on just about every single kink meme.
Tara's actually a rather weird case. While she vividly expresses an aproval of Harry x Draco, in the actual story they don't come even close to emotional intimacy other than in the orgy at the end, and she even grows appalled at the idea of either of them cheating on her with each other. Which in itself would actually be a rather clever commentary on yaoi fangirl hypocrisies.
(Nala and Shocker watch Simba and Haiba making out.)
Nala: Simba? And Haiba? They're...?
Shocker:Shocking, isn't it? I never knew two male cubs could... feel so strongly for each other.
Nala: I can't believe them! Next time I see Simba and Haiba, I'm going to give them what they deserve!
Shocker: Excellent. You're finally learning, Nala. Come with me, and I can help you get what you desire.
Nala: Yeah, yeah. Just after I've finished watching this. It's kind of hot.
It is entirely weird to see a straight friendship in Super Smash Bros. when you have Marth, Link and Ike as the protagonists on a fiction. It's so bad that yaoi fangirls only LIVE to make them go gay for each other.
In-character, this is often a way for writers to put a member of a het pairing in a slash relationship without murder, defamation or adultery done to the female party. It's not cheating if your wife likes to watch.
This treatment is also sometimes given to a regular ole love interest, too. Hard to get with a girl who prefers to ship you with other guys...or so you might think, anyway. Bonus points if the former love interest becomes an Author Avatar too.
In Total Drama Island fanfiction, Izzy is often portrayed as a yaoi fangirl, perhaps because of the way she once teased Ambiguously Gay/gay in fanon Noah. Several stories involve her trying to get Noah and Cody together romantically.
"I didn't hear that story!" Kanae said, giggling herself, a tiny blush coming to her cheeks. "Ooh, Sempai with another boy! Such a naughty thought!" Her eyes turned distant and her blush deepened. "Hum, Sempai and Koizumi-san..."
At one point, a Slytherin girl claims that Muggle Yaoi Fangirls get burned at the stake. A Gryffindor girl reponds: "That can't be right! There wouldn't be any Muggle girls left!" (Hermione is left speechless by this exchange.)
The movie Run Fat Boy Run has one for a few seconds. Dennis and his friend Gordon tumbles around in a taxi, and Gordon's hand accidentally lands on Dennis' arse. Then the taxi stops next to a pretty girl who sees them like this, and then flirtatiously waves at them. Dennis seems rather confused/offended, while Gordon keeps his hand in place and smiles back at her.
In The Pink Panther Strikes Again, Clouseau mounts Dreyfuss' body and attempts to give him CPR after the latter falls into a lake. Two older women view this and one calls Clouseau a pervert while swinging her purse at him, but the other seems rather giddy at the whole spectacle.
"The plot went through so many twists that Gregory Peck finally submitted his own version to Carl Foreman: 'David Niven really loves Anthony Quayle and Gregory Peck loves Anthony Quinn. Tony Quayle breaks a leg and is sent off to hospital. Tony Quinn falls in love with Irene Papas, and Niven and Peck catch each other on the rebound and live happily ever after.'"
"How to Date an Otaku Girl" is basically about what it's like to date a yaoi fangirl.
In The Princess Diaries 2 (which is a Disney movie aimed at pre-teen girls, just so we're clear), there is a scene where Mia and her best friend Lilly are looking at prospective princes. Mia remarks that one prince shown is cute, to which her bodyguard Joseph replies, "His boyfriend thinks so too." Mia and Lilly's reaction is... enthusiastic.
Mia and Lilly, in perfect unison: *punch the air* Right on!
Constable Maggie Habib of The Thin Blue Line is very keen on the homoerotic aspects of football and in one episode speculates on the relationship between both Biggles and Ginger and Sherlock Holmes and Dr Watson ("sometimes there's months between cases - what do they do then?"). The somewhat old-fashioned Fowler is horrified.
In one of the last episodes of Buffy the Vampire Slayer, Buffy is sick and tired of Spike and Angel always ragging on each other - she suggests putting them in a room together and have the two get naked and wrestle it out (or something to that effect). When Spike seems to like the idea, she excitedly comments that there could be oil involved.
One issue of Dark Horse Presents had Buffy dream about Angel and Spike getting together, though she isn't pleased by this.
More fun when you remember that time where Spike said that "[he] and Angel were never intimate — except that one time."
The vampire Queen Sophie-Anne, of True Blood, gets excited when she sees Bill drink the blood of a handsome, muscular man, and says that she "loves to watch two men together." Later, she suggests to Bill that he and Eric resolve their differences by having sex, and wants to watch.
State of Play. A homosexual member of the newsroom mentions he just slept with the man they've been investigating. When he asks if they want him to go into detail the men immediately say "No!" while the female journalists have exactly the opposite response.
Supernatural has Becky, an obsessive fangirl who writes slash fic about the two heroes. And that's just the in-universe example.
When the main cast of Red Dwarf meet their gender-swapped alternate universe counterparts, Rimmer mentions that the female version of himself, Arlene Rimmer, wanted to make him watch Guy-on-Guy porn in the hope it would interest him.
The entire genre of Visual Kei often tends to market to Yaoi Fangirls and Yaoi Fanboys, often intentionally via fanservice and Bi the Way due to the scene's very large population of arguable bisexuals and pansexuals. Examples are too numerous to mention specifically, but X Japan, Miyavi, Gackt, and Versailles are Visual Kei artists or bands with pages on This Very Wiki and from a quick read of them (much less looking up their stuff) you will find fanservice.
Koda Kumi's song Taboo is about homosexual love (among other things), the video features Kumi walking in on her 'boyfriend' kissing another guy — she grins. Also featured in the video for Ima Sugu Hoshii, where she is enraptured by two guys dancing erotically.
Neptunia: Vert is a huge yaoi fangirl. Guess all those FPS/TPS of bald space marines and the constant implied homolust being all male have made her a yaoi fangirl.
She's also quite into yaoi Visual Novels, decorating her basilicom with framed screenshots (which have spooked plenty of men out of asking her on a date) and, attempting to sit Nepgear down to play one when she wrongly guess the latter's a Covert Pervert.
As it turns out, female androids in Disgaea 4 have some interesting encrypted files in their memory banks.
Android: OPEN VAL_FEN_SLASH_V1.DOC... ACCESS DENIED. PLEASE INPUT PASSWORD: ______
Fuuka, Desco and Vulcanus/Artina, each of them shows the hint that they are interested about the relationship between Valvatorez and Fenrich... Starting when Valvatorez and Fenrich talked to each other about Fenrich's swear under the moon After Fenrich's Heroic Sacrifice for Valvatorez and pretended as if he is dying so that Valvatorez can suck his blood and regain his powers, the three of them can't help but gossiping about their relationship in somehwere near to the end of the game, out of curiousity.
Mio from Little Busters is one of these, serving as something of a quiet Meta Guy for Ho Yay-ish comments and situations. In an early example, when she sees Riki and Kyousuke acting close and Riki tells her that they're childhood friends, she smiles and says to herself 'Natsume-san x Naoe-san', before correcting herself and thinking that it works in reverse as well, and tells Riki to cherish their friendship forever. Luckily, Riki has no idea what she's talking about. She also seemed quite interested when Kurugaya was deliberately posing herself all over a forced-into-crossdressing Riki, so she may be a Yuri Fan as well.
Demi of Death Brigade is a textbook example of this. It's made obvious at the very beginning of the story, when she accepts a job in return for a rare Yaoi manga.
Captain Jordan Lee from Skins. She certainly seems quite into it when she walks in one what appears to be her male vampire and werewolf teammates about to make out (they're actually arguing - she just walked in at just the wrong moment.)
Aoi House features two straight guys winding up in what was supposed to be "Yaoi House," populated entirely by Yaoi Fangirls (and one crossdressing Yaoi fanboy), who constantly try to turn them into their "yaoi pets."
The heroine of Gai-Gin was told a malicious piece of gossip about her boyfriend being gay (because he'd written the ad jingle for a store in Tokyo's gay district) and actually cried because it wasn't true.
Moon Over June features a rare case of a lesbian Yaoi Fangirl in the form of Hatsuki. Hatsuki is "intrigued" and not actively repulsed by men, but has no interest in actually sleeping with one. Her girlfriend Summer, who Does Not Like Men, is completely baffled by it: "The only thing that would turn her off more would be men having sex with women (an act she considers the ultimate perversion)."
Esa from Handsome Fungus is almostcaught drawing yaoi. (also note that the "801" is Japanese number-syllable code for "yaoi".)
Captain SNES: The Game Masta had a bit where Relm is a yaoi fangirl. She even ruins Alex's fantasy football by talking about how much they have sex. Then she mistakenly called it shonen ai, which specifically refers to non-sexual gay themes; yaoi is the hXc stuff.
Princess Peonie: Now Yaoi is ruined for me forever!
King Urtica: The pornographers of the kingdom weep at the news, no doubt.
Meulin from Homestuck is a shipper who, when she first meets the humans, is very interested in the implications 'gay' could have on her shipping. She's probably a Yuri Fan as well, but as a parody of Tumblrites, this trope was no doubt the intended effect.
Mocked by anime voice actors Steven Blum and Vic Mignogna in a parody of the Budweiser 'Real Men of Genius' skit.
Missy, one of the characters in More Tales of MU is very clearly one of these. What makes it funny is that previously, the gay sex itself spawned a conversation in the comments concerning the existence of such fangirls just like the example above.
Sticks in Knight Blades, who seems more interested in guys doing things with each other than doing anything with them herself. (Apparently she got in trouble for fooling around with a Duke's son and decided it was safer to just "watch".) Though Ridder ends up changing this...
Sadly (or hilariously depending on your POV), a good deal too many yaoi fangirls like to bug the voice actors of popular yaoi-related characters about it at anime cons. Similar to the examples above, there have been fangirls making yaoi between the actual voice actors themselves. But this did lead to some good: once Quinton Flynn and Jeff Nimoy found out they were being shipped together, they created the "Yaoi Song".
Jenna Hilary Sinclair, a GLBT rights activist, author of gay romance novels, and Kirk/Spock shipper.
As just a couple of the Visual Kei examples above from one band, we have Yoshiki Hayashi, who wrote probably the most homoerotic song in the history of Visual Kei with Stab Me In The Back,Toshi not to be outdone with "You With Crystal Piano," his love song for Yoshiki, the late hide whose favorite song was the aforementioned "Stab Me In The Back" and included men and women equally in his fanservice, and finally Pata whose stage name originates from the Boys Love comic Patalliro. It could be argued that for as much as X Japan is a band appealing to yaoi fen, it's also a case of major Author Appeal.
Yukie Sakou, one of the main animators in Code Geass who is obsessed with Rolo (she redirects the topic of every question she's asked to fangirling about him) released some very interesting illustrations at C75, "mostly featuring Rolo & Lelouch"...
George Blagden, who played Grantaire in the 2012 film adaptation if Les Misérables seems VERY fond of the Enjolras×Grantaire ship. This became very noticable when he uploaded a video onto his youtube channel of him covering the song Hallelujiah (which can be interpreted as being sung from the POV of a man who fell in love with another man) and thenI Will Follow You Into the Dark and changing some lyrics so it was blatantly about E/R