Line #52 Main/AFamilyAffair


1	->''"Potoma Lewis very much enjoys the affections of her husband, and her husband's brother, and her father-in-law, and several of his cousins, and has even dabbled around with her dear husband’s elderly aunt on occasion."''
2	-->-- '''Finnick Odair''', ''Fanfic/TheVictorsProject''
3
4
5	Adultery is considered to be a betrayal on the cheater's behalf, and a major source of drama because of it. And as family is supposed to look out for one another, when the person they cheat with is a relative of the cheated partner it's [[TreacheryIsASpecialKindOfEvil all the more of a betrayal, and thus all the more dramatic]]. Usually it's the wife sleeping with her brother-in-law, or husband sleeping with his sister-in-law, though sometimes it's the parent or child. Doing so means they're almost universally considered a {{Jerkass}} for betraying their own loved one's trust, and the affair is usually on the bad end of GoodAdulteryBadAdultery. Of course, it's possible for it to be sympathetic if the relative is far nicer than the spouse being cheated on, or the cheaters wanted to be partners in the first place but had to settle for the other relative. Maybe it's just a sign of a DysfunctionalFamily.
6
7	While it can involve SettleForSibling and LoveFatherLoveSon, those tropes are usually for when the partner is dead or they're not in a relationship, if they ended up pursuing it at all. Of course, it's possible that it leads to a RemarriedToTheMistress scenario. The cheating partner might find their in-law to be a ReplacementGoldfish to whatever spark they had with their spouse. If the relative turns out to be the father of the spouse's child, it's a FamilyRelationshipSwitcheroo. Usually doesn't have anything to do with IncestIsRelative unless the partners were already related, although some cultures may consider it semi-incestuous regardless.
8
9	Compare SiblingTriangle, where both siblings are knowingly competing for the third one and TwoTimingWithTheBestie, where a character's partner cheats on them with a friend of theirs.
10	----
11	!!Examples:
12
13	[[foldercontrol]]
14
15	[[folder:Anime & Manga]]
16	* ''Manga/{{Berserk}}'': The Queen of Midland was the king's second wife; feeling neglected by him, she ended up carrying an affair with his brother Count Julius. While the relationship was purely physical, [[spoiler:after his death]] she came to realize she did truly love him.
17	* In ''Manga/{{Bokurano}}'', Hatagai cheats on his girlfriend Ichiko with her little sister Chizuru, which turns out to be one of the ''less'' despicable things he does.
18	* ''Manga/KanonChihoSaito'': [[spoiler:Gen Mikami sleeps with his fiancee Maria's mother. Maria [[{{Yandere}} doesn't take it well]].]]
19	* ''Manga/Mars1996'': Two significant ones:
20	** When they were in middle school Sei dated Shiori, until twin brother Rei took an interest in her and decided to pursue her while they were dating. Shiori willingly participates before breaking up with Sei, making their relationship overlap.
21	** [[spoiler:Rei's mother Shoko was married to Takayuki and had an affair with his now deceased younger brother Akihiko. Both Rei and Sei are actually his biological kids, not Takayuki's]].
22	* ''Anime/RevolutionaryGirlUtena'': [[spoiler:Akio ends up sleeping with his fiancee's mother]]. He's a lot more of a ManipulativeBastard about it, though.
23	* ''Manga/SorcererHunters'': Throughout the series, the Misu sisters Tira and Chocola are both madly in love with the same man, their fellow Hunter Carrot Glace, mutually deciding that the only woman they will allow to marry him is one of them. [[spoiler:In the finale, Tira marries Carrot, but Chocola plans to become Carrot's mistress on the side. She even attempts to sneak into Carrot's bed on the ''honeymoon'' so she'll be the first sister to bear his child.]] Ironically, throughout the series, Carrot barely notices them, and when he does, makes it clear he prefers Tira.
24	[[/folder]]
25
26	[[folder:Comic Books]]
27	* ''ComicBook/{{Batman}}'': Post-Crisis, Commissioner Gordon became [[ComicBook/{{Batgirl}} Barbara Gordon's]] uncle and adoptive father rather than her biological father as he had been before, but Barbara later discovered that he may have been sleeping with his brother's wife around the time she was conceived, [[LukeIMightBeYourFather implying she may have been his biological daughter]].
28	* ''ComicBook/SpiderMan'': Norman Osborn had an affair with his son's fiancée Lily Hollister. [[AbusiveParents This isn't even the worst thing he's done to Harry]].
29	* ''ComicBook/WonderWoman'':
30	** ''ComicBook/WonderWoman1987'': While Aphrodite's parentage is left vague, she cheats on her husband Hephaestus with his brother Ares, and has several children with Ares.
31	** ''ComicBook/WonderWoman2011'': Aphrodite cheats on her husband Hephaestus with his brother Ares, though the children who are normally attributed to Ares and Aphrodite are claimed to be her children with Hephaestus here.
32	[[/folder]]
33
34	[[folder:Fan Works]]
35	* ''Fanfic/BrocktonsCelestialForge'': Joe unwittingly reveals to Amy the possibility that [[spoiler:Carol had an affair with her brother-in-law, and that it may have resulted in Victoria's conception]]. This information then gets spread around, basically destroying New Wave.
36	* Downplayed in ''Fanfic/{{Chemistry}}''. Cadance is attracted to her husband's younger sister Twilight, but it's likely unrequited.
37	* ''Fanfic/{{Restraint}}'': While [[spoiler:Azula]] was away for two years, [[spoiler:Ty Lee]] cheated on her with her married brother [[spoiler:Zuko]]. This ended up leading to a pregnancy and their BigScrewedUpFamily became even more screwed up.
38	* As seen above in the page quote, in ''Fanfic/TheVictorsProject'', Finnick reveals during [[BestServedCold "The Revenge of Finnick Odair"]] that a Capitol citizen cheated on her husband with several of his family members.
39	[[/folder]]
40
41	[[folder:Films -- Live Action]]
42	* The Creator/{{HBO}} movie ''Film/{{Above Suspicion\|1995}}'', starring Creator/ChristopherReeve and Creator/KimCattrall as husband and wife Dempsey and Gail, in which Gail is having an affair with Dempsey's brother Nick. Dempsey ends up killing them both and successfully spinning it as self-defense.
43	* In ''Film/{{Bumblebee}}'', Roy, the corrupt hick who explodes into goop by Decepticons Shatter & Dropkick when they first arrive, apparently attempted (and failed) to cheat on his wife with her sister, and cares more about his car than he does the lives of anyone around him.
44	* ''Franchise/{{Hellraiser}}'':
45	** In the original ''Film/{{Hellraiser}}'', Frank Cotton is revealed in flashbacks to have seduced his brother Larry's second wife Julia while he was away from home. Her lingering affection for him is the primary reason why she tries to help him complete his resurrection after his escape from the Cenobites.
46	** ''Film/HellraiserJudgement'': Sean's brother David, who is also his colleague and partner in the police department, is having an affair with Sean's wife Alison. Sean tries to use this sin to offer them as a sacrifice to Pinhead in exchange for his own soul.
47	* In ''Film/HowToMakeAnAmericanQuilt'', it's eventually revealed that the long-standing issue between sisters Hyacinth and Gladiola is that while Hy's husband was dying in the hospital, Hy slept with Gladdy's husband Arthur.
48	* ''Film/KenPark'': The teenager Shawn is sleeping with his girlfriend's mother behind her back and fantasizes about having a three-way with the two of them. Out of the four main characters, whose lives are rife with abuse and dysfunction, his situation is probably the ''least'' psychologically messed up.
49	* In ''Film/TheKillerThatStalkedNewYork'', Matt cheats on his wife Sheila with her sister Francie. Sheila finds out about this from Willie, the owner of the nightclub where Matt works.
50	* Very early in ''Kiss Me Guido'', protagonist Frankie walks in on his fiancee having sex with his brother on the kitchen counter. This betrayal launches the plot, as it drives Frankie to move away and pursue his acting dreams.
51	* In ''Film/LoveActually'', Jamie's storyline begins with him discovering his girlfriend is having an affair with his brother.
52	* It's implied in ''Film/{{Ophelia}}'' (based upon ''Theatre/{{Hamlet}}'') that Gertrude has an affair with her husband's brother, Claudius, or at the very least an emotional affair if not a physical one. She and Claudius are quite flirty with each other while she's still married to Hamlet's father and they even kiss, but Gertrude breaks it off. However, Ophelia later sees her sneaking out of her chambers late at night, possibly to meet Claudius, though it's [[DidTheyOrDidntThey left ambiguous]]; after the king's death Hamlet asks Ophelia outright if his mother was unfaithful to his father, but Ophelia can't say for certain.
53	* ''Film/ARecipeForSeduction'': During a discussion at the bar, it's revealed that Bunny had an affair with Billy, her daughter's boyfriend. One of Bunny's motivations for having Jessica marry him is so she can continue being with him as well.
54	* ''Film/TheRental'': Mina is in a relationship with Josh, and works with his brother Charlie, who she hooks up with on the first night the group are at the house.
55	* In ''Film/SoulFood'', Nick cheats on his wife Teri with her cousin Faith.
56	* ''Film/StrangeWayOfLife'': Silva accuses Jake of having an affair with his brother's wife. Jake doesn't deny it and simply brushes it off by saying it was a long time ago.
57	[[/folder]]
58
59	[[folder:Jokes]]
60	* An old joke:
61	--> ''A man goes to meet his fiance's family, and while they all seem friendly enough, he notices that her younger sister seems quite smitten with him, contriving to jiggle her cleavage whenever he looks in her direction, dropping things and bending over to pick them up while next to him, playing footsies under the table at dinner, etc. Finally he ends up alone in a room, when the sister enters half-naked and orders him in no uncertain terms to ravish her then and there, adding that her sister will never know anything about it. Without a word, the man gets up, leaves the room, goes down the stairs, exits the house, and already has his car keys out when the rest of the family pops out of hiding, [[KnightTemplarParent the father putting down his baseball bat to congratulate him on passing the faithfulness test]].
62	-->The moral of the story: [[AllMenArePerverts Always keep your condoms in the car]].''
63	[[/folder]]
64
65	[[folder:Literature]]
66	* ''Literature/CloudAtlas'': The main reason why Timothy Cavendish is locked up in a home is that he slept with his brother Denholme's wife Georgette. They seemed to have a bad relationship before this, but it certainly didn't help.
67	* In ''Literature/EastOfEden'', Catherine cheats on Adam Trask with his brother Charles.
68	* ''Literature/TheFolkOfTheAir'':
69	** The heroine Jude Duarte starts a relationship with Locke. She later discovers that he is in a secret relationship with her sister Taryn, whom he even later marries. Locke started his relationship with Jude because he loves to create drama and scandal.
70	** Locke's mother Liriope was a consort of High King Eldred, but she also slept with his son Prince Dain. This ends up costing her her life, since [[spoiler:Dain murdered her after he found out she was pregnant.]]
71	* In ''Literature/{{Hurog}}'', Ward's father in the backstory had an affair with the half-sister of his wife (Ward's mother).
72	* ''Literature/JudgeDee'': One case involved a young man having an affair with one of his father's young concubines, even planning to murder his father and frame a local artist who claimed the father was a traitor to his country. Unfortunately, in Confucianist China the issue of [[MoralEventHorizon disrespecting one's father is so important]] that the son might as well have been screwing his biological mother, and the judge indirectly orders him to commit suicide (the father was murdered, [[RewardedAsATraitorDeserves but for]] [[AssholeVictim entirely different reasons]] by someone else).
73	* ''Literature/ModernFaerieTales'': In the novel ''Valiant'', the teenaged heroine Valerie Russel discovers that her boyfriend Tom is sleeping with her mother. This causes her to run away from home due to feeling betrayed.
74	* ''Literature/ASongOfIceAndFire''
75	** The justification for the Blackfyre Rebellion's cause is the rumors that the current king, Daeron Targaryen, [[MamasBabyPapasMaybe wasn't actually King Aegon IV's son]]. Rather, he was the result of Queen Naerys cheating on his, or rather [[RoyalInbreeding their]] brother and kingsguard Aemon the Dragonknight. Since Dameon Blackfyre was a legitimized bastard of Aemon and Daena the Defiant, he and his descendants would have more of a claim to the throne if it were true. In-universe most believe this is unlikely due to how pious and honorable Naerys and Aemon were, even if they did love each other, and that Aegon himself started the rumor in order to disinherit his son, especially as the rumours started around the time he was having an argument with his son.
76	** After her [[SiblingIncest brother/lover]] Jaime (with whom she was sleeping throughout her marriage to King Robert) is captured by the Starks, Cersei consoles herself by sleeping with their cousin Lancel, who is apparently closely enough related that he resembles Jaime.
77	** "Black" Walder Frey is rumored to have slept with his brothers' and cousins' wives [[KissingCousins along with his female cousins]], and thought to have slept with his great-grandfather Walder Frey's young seventh wife Annara Fanning. This puts the paternity of the younger Freys into question, making House Frey even more of a BigScrewedUpFamily than it already is.
78	** The root cause of [[CainAndAbel Victarion and Euron Greyjoy's feud]] is that Euron slept with his wife, which Ironborn culture considered her DefiledForever because of that [[HonorRelatedAbuse and Victarion killed his wife out of "honor"]]. While he suspects he raped her, Euron claims she was "wet and willing" and the betrayal is the same. Sadly, this isn't even the worst of what Euron has done to his family [[AxCrazy or people in general]].
79	* It's implied in ''Literature/PatienceAndSarah'' that Patience's sister-in-law ''wishes'' this was happening. Martha gets upset when she learns Patience is in love with a woman, but accidentally lets it slip that she's mad Patience isn't sleeping with someone in the family (AKA, her).
80	* ''Literature/MostlyDeadThings'': Brynn cheated on her husband with his sister, Jessa.
81	* ''Literature/{{Ravensong}}'': How Stacey and her siblings were born, as her father of record was effectively infertile, given a trial period of three years:
82	--> Grandpa Thomas told a story of twin brothers, one the father of children, the other the woman's husband. Stacey choked. She isn't going to tell me that Jim is not my father. Momma's monologue softened, became reverent, telling Stacey precisely what she did not want to hear. To prevent divorce and still have children she had spent time in the city with Ned-four times, in fact. It had hurt Jim but he had to decide between no wife and no children or a wife and his twin brother's children.
83	* ''Literature/TheNightsDawnTrilogy'': Dashing space trader/smuggler Joshua Calvert visits a [[SpaceAmish world with the social structures of eighteenth-century England]] and Louise, a young woman there, develops a crush on him. Her mother, fearing the potential consequences of Louise having pre-marital sex, seduces Calvert in the hope of keeping his penis occupied (it doesn't hurt that her husband is adulterous and that she herself has a crush on Calvert). Calvert seduces Louise anyway, and ultimately ends up marrying her at the end of the series.
84	* In ''Literature/AYellowRaftInBlueWater'', Ida's father Lecon has an affair with his wife's sister Clara, and to cover this up both Clara and Ida are sent away to a monastery so Clara can give birth and Ida can claim the resulting child, Christine, is actually hers.
85	[[/folder]]
86
87	[[folder:Live-Action TV]]
88	* This happens a lot in ''Series/AllMyChildren:''
89	** Maria cheated on her husband Edmund with his brother Dimitri. She soon after got pregnant, and [[WhosYourDaddy it wasn't clear who the father was]]. A DaddyDNATest revealed Edmund to be the father.
90	** Gloria cheated on her fiance Stuart with his twin brother Adam. Stuart broke up with Gloria once he found out, and Gloria and Adam ended up getting married ... [[EasilyForgiven with Stuart as the best man]].
91	** Tad cheated on his girlfriend Liza with her mother Marian.
92	** Arlene blackmailed her daughter Hayley's fiance/husband Alec into having an affair with her.
93	* In the 2000 miniseries ''Series/ArabianNights'', Sultan Shahryar's distrust of women has its origin in the discovery that his wife was carrying on an affair with his brother.
94	* ''Series/UmAnjoCaiuDoCeu'': One major factor in the Medeiros family becoming a BigScrewedUpFamily is protagonist João separating from his wife Naná after she discovered him cheating on her with his sister-in-law Laila in a tryst that resulted in him impregnating her with a HeroicBastard daughter Cuca.
95	* ''Series/DoctorWho'': Captain Archibald Hamish Lethbridge-Stewart from "[[Recap/DoctorWho2017CSTwiceUponATime Twice Upon a Time]]" was intended by Creator/StevenMoffat to be the Brigadier's grandfather, however according to Henry Lincoln and the Haisman estate (who own the character and publish the spin-off Lethbridge-Stewart series), he was supposed to be his great-uncle, and Alistair Lethbridge-Stewart was the grandfather. A compromise was made with a short story that revealed in a moment of loneliness while Alistair was off on a mission Archibald and Alistair's wife Lillian had a secret tryst, strongly implying that he was the Brigadier's ''biological'' grandfather, and Alistair his legal grandfather.
96	* One episode of ''Series/CSIMiami'' has this as its big reveal. The victims in a double murder are the parents of a teenage girl. [[spoiler:The girl's boyfriend killed her father, and the girl arrived in time to see her mother telling the boyfriend that because of what he did, "We can be together now" - he had been sleeping with the mother. Enraged, the girl killed her mother. When the shock wore off, the two teenagers agreed to keep silent.]]
97	* On ''Series/TheGetDown'', Lydia had quite a bit of sexual tension with her brother-in-law Francisco, who clearly cares more about her and her daughter Mylene than her husband [[TheFundamentalist Ramon]]. It's implied something may have happened between them in the past, [[spoiler: which eventually gets confirmed when she reveals to Ramon that Francisco is Mylene's (and possibly her younger daughter's) actual father.]]
98	* ''Series/{{Helix}}'': Alan became estranged from his brother Peter because the latter was having an affair with Alan's wife Julia, whom he divorced over it. When he's forced into WorkingWithTheEx and learns that Peter's life might be in jeopardy, Alan nevertheless is determined to help his brother.
99	* ''Series/TheJerrySpringerShow'': While cheating in general is pretty common with their guests, this variation also shows up a lot ("You Slept with My Stripper Sister", "He Cheated on Me with My Cousin", etc) as it makes the guests even more likely to start fighting each other.
100	* ''Series/MoonLovers''
101	** Yeon-hwa implicitly has an affair with '[[BrotherSisterIncesther half-brother Wang Yo]], who wants to marry her, but she would much rather marry his full brother Wang So. After Yo's death she eventually makes So marry her.
102	** Ha-jin/Hae-su falls in love with Wang Wook, who's married to her distant cousin Myung-hee. After Myung-hee's death Wook offers to marry Ha-jin, but instead she falls in love with his half-brother, the aforementioned Wang So. And in the end she marries yet another half-brother, Wang Jeong.
103	* On ''Series/MyNameIsEarl'', Joy very nearly leaves Earl ''on their first wedding anniversary'' for his ManChild cousin that she had hooked up with in the past before meeting Earl. [[spoiler: Earl protects her from a killer bee by stabbing it with a skewer from a corn dog, proving to her that he ''does'' care about her, and she goes back to him...though she eventually has an affair with Darnell.]]
104	* ''Series/PersonOfInterest'': In [[Recap/PersonOfInterestS03E19 Most Likely To...]] John Reese poses as Frank Mercer to infiltrate a school reunion, and gets slapped by random women. Harold Finches finds out Mercer had a fling with a girl and seduced her mother, who is still sore about it after twenty years.
105	* ''Series/ScarletHeart'': Zhang Xiao/Ruo Xi and Yin Si are siblings-in-law but are romantically involved for a while. After breaking up with him Zhang Xiao falls in love with his brother Yin Zhen, and after ''that'' relationship ends she marries Yin Ti, yet another brother.
106	[[/folder]]
107
108	[[folder:Music]]
109	* ''Music/{{Voltaire}}'': In "Stuck With You," a husband and wife are both complaining about the other, with increasingly escalating problems. One verse shows that the couple had cheated on each other, starting with the husband:
110	-->'''Wife:''' ''You promised you'd be true to me,\
111	But gave me infidelity!''\
112	'''Husband:''' ''Why should I give a tinker's cuss?\
113	She was your sister, what's the fuss?''
114	[[/folder]]
115
116	[[folder:Myths & Religion]]
117	* ''Myth/ClassicalMythology'':
118	** One of the origins of Zagreus and Melinoe is that Zeus slept with his brother Hades's wife Persephone [[BedTrick by disguising himself as Hades]]. [[IncestIsRelative Persephone also]] [[ParentalIncest happened to be Zeus's daughter]] [[SiblingIncest by his sister Demeter]].
119	** [[WarGod Ares's]] favorite consort is Aphrodite, who was married to Hephaestus, blacksmith god and his full brother. While Aphrodite cheated on her UnwantedSpouse [[ReallyGetsAround with a lot of other people]], Ares was the one best known for it.
120	* ''Literature/TheBible'':
121	** In the [[Literature/BookOfExodus book of Leviticus]], several paragraphs are dedicated to admonishing the Israelites not to have sex with family members, including stepparents/stepsiblings/in-laws/etc. Doing so was punishable by the parties involved being [[KillItWithFire burned alive]].
122	** Later, in the Literature/BookOfAmos, after Israel has turned ([[YoYoPlotPoint yet again]]) to [[WretchedHive idolatry and all-around depravity]], the writer laments that a father and son visit the same temple prostitute, or "use the same girl." (Maybe at different times, maybe at the same time; the text doesn't say.) The writer considers this to be a form of incest.
123	** Later, in ''Literature/TheFourGospels'', John the Baptist calls out a ruler named Herod who is sleeping with his sister-in-law. (He also feels attraction to her daughter, who dances for him at a party.) She ends up having John killed for interfering. (When Herod tells her he'll give her anything she asks for as an award, her mother tells her to ask for John's head on a platter. Herod can't go back on his word, even though he actually kind of liked John apart from the whole "calling him out for having an inappropriate relationship" thing, so he complies.)
124	** Later still, in the [[WordOfStPaul writings of St. Paul]], this is a problem in an early church community Paul is writing to. He gives them a ''big time'' WhatTheHellHero
125	[[/folder]]
126
127	[[folder:Theatre]]
128	* ''Theatre/{{Chicago}}'': Velma, like all the other "Merry Murderesses" of the Cook County Jail, is a murderer; she killed her own husband and twin sister. In "Cell Block Tango", her motives were explained to have been blind fury at finding her husband and sister having sex after she left for just a few minutes.
129	* In ''Theatre/{{Hamilton}}'', Angelica remains in love with Alexander even after he marries her sister, and he holds some longing for her as well. This is a reference to the theory some historians believe that the real Hamilton may have had an affair with sister-in-law Angelica.
130	* ''Theatre/{{Hamlet}}'': [[CainAndAbel After poisoning his brother]], King Claudius is quick to [[ComfortingTheWidow comfort the widow]] and marry Queen Gertrude. It's implied in some adaptations that the two were carrying on an affair while the king was still alive.
131	* In ''Theatre/TheLionInWinter'', the French princess Alys has been betrothed to UsefulNotes/RichardTheLionheart since she was quite young, and has been raised in the English court to prepare her for that role. However, for some time before the start of the play, she's been the mistress of Richard's father, UsefulNotes/HenryTheSecond. Henry's wife, Eleanor of Aquitaine, seems to take it fairly in stride and even informs Henry that early in their marriage, ''she'' cheated on him - with his father. Henry does ''not'' take this in stride, and is in fact physically ill at the idea. (It's hinted that she might be lying just to upset him.)
132	[[/folder]]
133
134	[[folder:Video Games]]
135	* ''VideoGame/MetalGear'':
136	** Legally Meryl Silverburgh is the son of Roy Campbell's brother Matt, who was killed in the Gulf War. Eventually, it's revealed that he's her real father, as a result of an affair he had with Meryl's mother/his sister-in-law.
137	** The wife of Huey Emmerich at one point had an affair with his son (her stepson), Hal. This led Huey to commit suicide and his wife Julie eventually remarried. Her new husband later tried to sexually assault her daughter and was seriously injured in self-defense.
138	* ''VideoGame/SummertimeSaga'': While MC is in a relationship with Eve, he can take Odette up on her offer to have sex with Eve's older sister Grace behind her back. Grace thinks it was a huge mistake, but MC can just continue the affair anyway.
139	* In ''VideoGame/TheWalkingDeadSeasonThree'', Javier has the option of reciprocating the feelings of his sister-in-law, Kate, whose husband and Javier's brother, David, is presumed dead. Even before the outbreak, Kate and David's relationship was already strained due to him being unpleasant. He's even confided to Javi that he's realized he hates being a family man to the point that he wants to leave and entrust his wife and family to Javi. [[spoiler:When it turns out David is alive, it complicates things. He'll be upset when he thinks Javi and Kate are together and accuses Javi of stealing his family (regardless of whether or not Javi has been accepting Kate's advances, Kate deliberately angers David at one point by suddenly kissing Javi). In the ending, Kate won't feel bad if David was killed and urges Javi to do the same, though if Gabe was also killed, she'll ask for some space, but will otherwise want to pursue their relationship.]]
140	[[/folder]]
141
142	[[folder:Visual Novels]]
143	* ''VisualNovel/DoubleHomework'' has a version of this. Tamara is fully aware that Johanna is attracted to the protagonist, and she actively undermines his relationship with Johanna to get what she wants.
144	[[/folder]]
145
146	[[folder:Web Animation]]
147	* ''WebAnimation/HarmonyAndHorror'': This is what begins the tragedy surrounding M&H Harmony Toys and the Greywhinder family. [[spoiler:Martin's wife Gloria had an affair his brother and fellow co-founder of the toy company Arthur, and as a result those he believed were his children were actually Arthur's and not a miracle as he believed he was sterile. This serves as his StartOfDarkness, growing hateful and abusive and eventually making a DealWithTheDevil that led to the death of many people, including the ritualistic murder and FateWorseThanDeath of [[OffingTheOffspring his children/biological nephews and nieces]]. While Arthur had romantic feelings for him, it's ambiguous if her feelings were romantic or she wanted children that carried Martin's "blood".]]
148	* ''WebAnimation/RevengeFilms'':
149	** [[https://youtu.be/BoyWnHvuLL0 "Brother-in-law’s girlfriend pregnant and she is sleeping with every man in the family"]]: Rose not only slept with both her boyfriend and brother-in-law but also her ''father-in-law''. This is deconstructed, however, as Rose eventually became pregnant and didn't know whose baby it was, causing the three of them to dump her.
150	** [[https://youtu.be/5_G-Htw4DoU "My husband was sleeping with my mom, and they disappeared the next day..."]]: Jill's husband cheated on her with her abusive mother. At first, he apologizes to her and begs for forgiveness, but then asks for divorce as he loves the mother more than he does Jill.
151	** [[https://www.youtube.com/watch?v=JAA3UCXD8mk "My husband was having an affair with my sister"]]: Yuri suspected her husband Jasper was cheating on her. When she caught him going out with her younger sister Zinnia and came over to her mother's house, Zinnia told her the same thing her husband told her when she brought up the affair.
152	** [[https://www.youtube.com/watch?v=XX93htwE9K0 "I was called in because my car was caught on a speed camera, but I wasn’t driving it..."]]: Karen cheated on the OP with his own father while he wasn't around, which ended when the bastard died in a car accident after Karen tipped him off. When he found out about it, OP became sick until he collapsed at work because of the accumulated emotional distress.
153
154	[[/folder]]
155
156	[[folder:Webcomics]]
157	* PlayedForLaughs in an early strip of ''Webcomic/GrrlPower'', as Tony and Olivia are [[http://grrlpowercomic.com/archives/159 half-siblings/cousins]][[note]]the technical term is ¾ siblings[[/note]], as the end result of their father achieving a TwinThreesomeFantasy. Grandma keeps a LaughTrack handy for the inevitable infighting between the twin sisters.
158	[[/folder]]
159
160	[[folder:Western Animation]]
161	* ''WesternAnimation/FamilyGuy'':
162	** Attempted but ultimately averted in ''"[[Recap/FamilyGuyS5E13BillAndPetersBogusJourney Bill and Peter's Bogus Journey]]"''. Trying to fix their relationship after cheating on his with UsefulNotes/BillClinton, Lois allows Peter to have an affair of his own so that they're even. He decides to sleep with her mother and she's all for it, but he ultimately can't bring himself to do so. Instead he confronts Bill for being a homewrecker...only to be seduced and bedded by him as well.
163	** In "[[Recap/FamilyGuyS21E4TheMunchurianCandidate The Munchurian Candidate]]", Peter performs oral sex on Babs, his mother-in-law, in a hypnotic trance thanks to his TriggerPhrase (the ''Extra'' jingle) going off at the worst possible time. When he and Lois find out what happened, they're both too horrified to talk about it until they get back home.
164	[[/folder]]
165
166	[[folder:Real Life]]
167	* The accusation of this is likely what led to [[UsefulNotes/TheRomanEmpire Emperor Constantine]] [[OffingTheOffspring condemn and execute his son, Crispus]]. He was accused of having an affair with the empress and his step-mother Fausta, though it's still debated by historians whether she accused him of the crime or the two actually had an affair. The fact her own children never redeemed her memory when they were in power might support the latter.
168	* Lady Li of [[UsefulNotes/DynastiesFromShangToQing the Northern Liang dynasty]] had affairs with ''three'' of her husband's brothers and [[MurderTheHypotenuse attempted to murder one lover's wife]].
169	* Marie Bonaparte (Napoleon's great-grandniece) married Prince George of Greece and Denmark, then had an affair with George's uncle Prince Valdemar of Denmark. Unlike most examples of this trope, George knew about and encouraged their relationship (and [[{{Squick}} he may also have]] [[IncestIsRelative had an affair with his uncle too]]). At some point Marie also flirted with [[LoveFatherLoveSon Valdemar's son]], though it's uncertain if that relationship went beyond flirtation. [[RoyallyScrewedUp What a mess!]]
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Context Main / AFamilyAffair