Believe me, if I knew she was my cousin we never woulda dated. Guess what you were doing? Sometimes in stories, two people meet and just seem destined for romance. Love blossoms in a particular way, or perhaps the two have a loveless Arranged Marriage lying in wait for them instead. But then, someone makes a startling discovery — genetics has struck!
The couple-to-be are related — and not in the "same species" sense — and the romance or arranged marriage is called off. The result may be either great rejoicing or great despair. Or if the two still want to be together and the author doesn't want to go the incest route, a counter-reveal may show up to prove that the genetics aren't a problem after all. This wasn't always the case; Oedipus was very happily but unknowingly married to his own mother for many years and had several kids with her before things fell apart to the extent that The Reveal resulted in Oedipus's mother killing herself and Oedipus himself stabbing his own eyes out , so this is Older Than Feudalism.
Still, this trope is surprisingly common in anime and manga , as well as other Japanese entertainment, due to much more relaxed views on the subject in Japan. Cousins are only borderline squicky since marriage between cousins is actually legal in most places, and is quite acceptable in many romance novels. In fact, in the Arabian Nights , a man will call a woman he loves or is married to "daughter of my uncle", because in that time marriage between cousins was considered the best option!
Because of this, it almost never appears as a plot point since it's a little too close for some folks to be comfortable, but not close enough that the plot demands the relationship break up. The relationship is more like to be on the paternal side, because of Mama's Baby, Papa's Maybe. Historically was a fairly common way of making the Veronica of a Betty and Veronica off-limits. If the characters don't know the truth in advance but the audience does, this overlaps with Dramatic Irony.
Each girl came believing that she was the twin sister. They both fall in love with the main a few episodes after this. The irony being the anime had one of the girls be the guy's sister, and the novelization had the other one.
Maya's Funeral Procession has the main character, Reina, falling in love with a mysterious girl named Maya, only to discover that Reina is the product of her mother's affair with Maya's father and thus they're actually half-siblings. Koi Kaze has year-old Koshiro and year-old Nanoka having a chance encounter , going to an amusement park together, forming an emotional connection and spark of mutual attraction, and then finding out they're brother and sister in the first episode. They never really got around to doing anything, but they definitely looked like the usual romantic pairing all the way up to the last five episodes of the series.
Word of God is that this was a deliberate reference to Luke and Leia. Speaking of Sayla, in the Mobile Suit Gundam: The Origin version of her first meeting with Char who is suffering a serious case of Adaptational Villainy he tries to rape her before recognizing who she is. Negi and Asuna, one of the most popular and teased pairings in Mahou Sensei Negima! In Count Cain , unbeknownst to him, the main character's mother is his father's older sister.
He then proceeds to fall in love with his first cousin, which was legal in the time period. The problem is, his cousin is his father's older sister's daughter, making her also his half-sister. Thankfully, Zelgadis stating that Rezo was both his grandfather and great-grandfather turned out to be a translation error.
He then only told his Unfavorite , though. Uniquely, it turns out that they're twins and that the latter has Turner syndrome. Hatsune suspected something was up upon learning that in addition to their identical birth dates, blood types, and unusual ability to know what the other was thinking even when they were silent, that they'd both been adopted after being orphaned as infants in a massive fire that destroyed their birth neighborhood. When she gets the test results confirming it, she And for worse, Raita is accused of having killed her in a Yandere fit.
Conan, through Kogoro, has to clear his name. When Kaname turns Yuuki into a vampire, restoring her memory, she reveals to the audience that Kaname is her brother. Ah, so the Love Triangle will be easily solved, won't it?
Kaname confirms she's his sister, and states she was born to become his wife. Then he asks the other why they look surprised — this is very common among pureblood vampires , and in fact their own parents Juri and Haruka were siblings and Happily Married. Later it turns out that Kaname wasn't her brother, but a distant ancestor who had been asleep for hundreds, if not thousands, of years and her real brother was given to him as a blood sacrifice so that he could be revived.
It's still incest so it's double subverted. The situation is exactly as complicated as it sounds. The prince and princess from Andromeda Stories , a pair of Half-Identical Twins who were Separated at Birth , get into a relationship before learning of their heritage. Weirdly, they decide to stay together after the truth comes out, citing the fact that incest is fairly common in royal families.
Kanba and Masako subvert this in Mawaru-Penguindrum. They know about their bond and have it more or less clear though Masako has quite the case of Big Brother Attraction as shown when she kisses Kanba , but it's a surprise to the audience and to Kanba's adoptive sister Himari. In Daily Lives of High School Boys , Emi, after days of Cannot Spit It Out , finally finds the chance to confess her love to the visiting Hidenori on a festival, which coincides with his last day in town which happened to be his maternal hometown.
But just when she thinks she finally found her chance, Hidenori makes a most surprising revelation to her: Enrico, upon discovering the relation, tried to keep the damage to a minimum by not telling her and instead hiring a third party to make them break up.
Too bad the third party's method of doing this was to lynch Wes In Saiyuki , fraternal twins Cho Gonou and Cho Kanan were separated at a very young age when their parents divorced, one parent taking each child. Years later, they met at school, fell in love, discovered their relationship to one another, and became lovers, in that order.
Dragon Ball Z has a minor example with Bulma gently hitting on Trunks well before she learns that he's her Kid from the Future. In Jewelpet Sunshine , Kanon and Mikage start dating around mid-series; towards the end of the show, Kanon's adoptive-all-along mother reveals to her that she and Mikage are actually twin siblings, who had to be separated because of a misinterpreted prophecy. Unknown to him, he is her older half-brother who was abandoned because he was half-elf and the previous Zelda didn't want her husband killing him.
The manga never shows him learning that they're related. Zelda knows they're relatively, and doesn't requite Link's feelings, but is never shown telling him that they're related. While the characters never know it, Birdy the Mighty Decode sees this: Nataru, the titular Birdy's love interest and childhood friend was, like her, created in lab as a Super Soldier —the same lab to be precise, which means there's a good chance Nataru and Birdy are brother and sister.
In the first chapter of Family Compo Masahiko meets Shion and finds her attractive. Later that day he learns she is his cousin. The series sways between them being like siblings and them being Kissing Cousins , with a lean towards the latter. Comic Books Jack from Jack of Fables doesn't find out that he's adopted and that the Page sisters are also his half-sisters until after he's already slept with each of them.
He takes the news relatively well, his sisters, not so much. It may never have been revealed to the characters, but Cutter once got it on with Kahvi during a pre-battle orgy, and Kahvi takes up with him while Cutter's family is lost in time, though it doesn't really work out. Much later, readers learned that Kahvi is the daughter of former Wolfriders chief Two-Spear.
Cutter is a direct descendant of Two-Spear's half-sister, Huntress Skyfire, making Kahvi his cousin four times removed. Which, especially considering the small gene pool of the Wolfriders, isn't spectacularly close. And with Recognition preventing conception for any but good genetic combinations, the elves may not have an incest taboo.
It makes sense, however, that such in-pairings will happen in such a small tribe—so yes, Recognition probably does take care of the biggest problem with incest. Thankfully, however, we haven't been subjected to any closer pairings Neither of them knows at the beginning that Kara is cousin of Kon's genetic template. A story arc in The Fabulous Furry Freak Brothers has Fat Freddy looking for his old home in Cleveland, broke, hungry, and bemoaning his perpetual bad luck. Just then, to his delight, a cute girl appears, befriends him, takes him home, feeds him, and joins him in the bathtub.
A car pulls in and she warns "Here come my parents! The love affair ends before it starts. In the parody of Maverick, the final line. The Monster Society of Evil has a thankfully low-key example: Mary seems to have a Precocious Crush on the superhero who just saved her from being eaten by alligator-men and kisses him on the cheek, only to find out a few pages later that he's actually the Older Alter Ego of her long-lost big brother.
She thinks it's gross, but he's so happy to have tracked her down that he's just amused by the whole thing. In an issue of Jason Aaron's Thor run, a young version of Thor is pulled out of the distant past and enslaved on a world full of Gods who have been kidnapped from various eras of history. He meets a beautiful young Goddess named Ellisiv, who turns out to be one of his descendants from the far future. I've been having impure thoughts about my grandfather.
Hans Karup unknowingly married one of his own daughters after she came of age. She was actually aware of their family relationship, and wouldn't let him touch her. The marriage was in fact all part of a decades-long revenge plot to hurt him for previously leaving their mother to her death. Fan Works Higher Learning: After he spent a while reassuring her, she felt something familiar on him and kissed him on impulse.
Right away she felt guilty, got scared and ran away. At the next morning Kaoru apologized and said he would resign if she wanted, but she said not and apologized in turn. In Love Kills , a Percy Jackson and the Olympians fanfiction, the main character, Jade, falls in love with Luke only to find out that he's her brother. You'd think his name would have been a giveaway. The doujinshi Golden Sun Gag Battle! Gag Battle was based on the first game and published prior to the release of the second, which revealed that Hama was Ivan's sister, making this a meta example.
They don't think too hard about it. In the sequel she finds out she had, long ago, another suitor. One that Twilight's also attached to in a way. Celestia then reminds Twilight that 1, years is probably sufficient time.