[[quoteright:323:[[Manga/FullmetalAlchemist http://static.tvtropes.org/pmwiki/pub/images/b34a5f96c70f79c64ac3c4e85baf056e.png]]]]
[[caption-width-right:323:She's his mechanic! Nothing more!]]

->'''Penny:''' Sheldon has a girlfriend?\\
'''Sheldon:''' She’s not my girlfriend.\\
'''Penny:''' How long has this been going on?\\
'''Leonard:''' Four months.\\
'''Sheldon:''' She’s not my girlfriend.\\
'''Penny:''' Are you telling me, for the past four months I have been asking you what’s new and you never thought to go with ''Sheldon has a girlfriend''??\\
'''Sheldon:''' She’s not my girlfriend.\\
(...)\\
'''Sheldon:''' All right, everyone pay attention. Yes, I have a friend named Amy Farrah Fowler. Yes, she is female. Yes, we communicate on a daily basis, but no, ''she is not my girlfriend''.
-->-- ''Series/TheBigBangTheory'', "The Robotic Manipulation"

Yes, she is. And if she isn't, she eventually will be. ResistanceIsFutile. [[TheoryOfNarrativeCausality Narrative Causality]] compels you.

A standard response in the face of an accusation that two characters are more than JustFriends. Usually said with an exclamation point--or ten--at the end, and emphasis on the "NOT", maybe accompanied by breaking something.

"He is not my boyfriend!" is another version, albeit not as common, probably in a 65/35% ratio. There are also instances when the two accused say it simultaneously.

Is it true? Technically, yes. {{Hilarity|Ensues}}, if not bloodshed, ensues, because:
# [[EveryoneCanSeeIt Nobody believes them anyway]].
# The speaker and subject are [[ObliviousToLove long overdue]] for a RelationshipUpgrade.
# The subject was under the opposite impression.

A common inversion, especially in the second case, is when the speaker is asked about the not girlfriend/boyfriend in question, and they [[SuspiciouslySpecificDenial respond with the line, even though the accusation was never brought up in the first place]]. Alternately, the accusation ''is'' made, [[INeverSaidItWasPoison but not the name]], which the defendant then gives up. In either case, cue satisfied smirk by the asker.

The number of exclamation marks and how much the characters protest and try to convince people that they ''aren't'' together is usually proportionate to the amount of UnresolvedSexualTension between the characters in question. Presumably, characters who really ''are'' just friends wouldn't feel threatened by the accusation. For extra fun, try saying it about some characters who have BelligerentSexualTension.

Especially common in shows and on channels ("Teen" Nick goes crazy with this) where kids and/or preteens are the main audience. Quite interesting, as more often than not, most kids aren't ready for that kinda stuff yet, and therefore could use whatever interpretation comes their way. For some, the trope can be coupled with the fact that it allows for both a male and female protagonist in starring roles (thus reaching a wider audience) but is as far as either the {{Media Watch Dog}}s or writers will ever go in terms of illustrating romance and relationships in a series.

See also RelativeError, for when the pair involved are relatives of each other, and MistakenForRomance, for when the pair involved actually ''aren't'' a pair.

One of the stock phrases for {{Tsundere}}s (both genders), or one/both of a couple who are JustFriends.

[[IThoughtItMeant This does not result in]] TheNotLoveInterest.

Compare/contrast with StupidSexyFriend, wherein deciding they ''should'' just be friends is contrasted with the thoughts one can't get rid of of being more than friends.

[[noreallife]]

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!!Examples
[[index]]
* SheIsNotMyGirlfriend/AnimeAndManga
* SheIsNotMyGirlfriend/FanWorks
* [[SheIsNotMyGirlfriend/AnimatedFilms Films — Animation]]
* [[SheIsNotMyGirlfriend/LiveActionFilms Films — Live-Action]]
* SheIsNotMyGirlfriend/{{Literature}}
* SheIsNotMyGirlfriend/LiveActionTV
* SheIsNotMyGirlfriend/VideoGames
* SheIsNotMyGirlfriend/WebComics
* SheIsNotMyGirlfriend/WesternAnimation
[[/index]]

[[foldercontrol]]

[[folder:Comedy]]
* Creator/MitchHedberg: "I don't have a girlfriend, I just know a girl who would get really angry if she heard me say that."
[[/folder]]

[[folder:Comic Books]]
* ''ComicBook/CaptainAmerica'': A running gag involving Steve Rogers and [[ComicBook/{{Agent 13}} Sharon Carter]] during the Creator/MarkWaid run on Captain America. Played with in that they used to date and have a very strained relationship at present.
* In the ''ComicBook/MegaMan'' comics, Vector Woman frequently teases Protoman and Quake Woman about their "relationship".
* ''Comicbook/YTheLastMan'': Yorick frequently has to inform people that his bodyguard Agent 355 is not his girlfriend. Ironically 355 often pretends Yorick is her transsexual girlfriend in order to hide that he's the last man on Earth.
* In the ''WesternAnimation/CaptainNTheGameMaster'' comics from the ''ComicBook/NintendoComicsSystem'', Princess Lana acknowledges to Samus Aran that Kevin is Not Her Boyfriend. The result is your classic BettyAndVeronica LoveTriangle.
* Interestingly enough, [[WesternAnimation/BatmanBeyond Terry]] drops this quote verbatim in the ''[[ComicBook/BatmanBeyond Hush Beyond]]'' comic when Bruce calls Max his girlfriend. It appears to be a mix of ShipTease and EveryoneCanSeeIt, but PlayedForLaughs rather than romantic tension.
* In ''ComicBook/PocketGod'', Sun tells Toola that Ooga's not her boyfriend when she asks about their relationship.
* In ''ComicBook/{{Minimonsters}}'', many people (mostly Victor) teases Frank about his not-so secret crush on Henrietta, and that makes Frank blushing and shout desperately that she's not his girlfriend.
* Franchise/GreenLantern has Kyle Rayner and Bleez. While Kyle's identity is a secret, anyone who meets him and Bleez (and who isn't familiar with the history of the Green Lantern Corps) assumes they're a couple because... well, she's hot and they assume Green Lantern would have a hot alien girlfriend.
[[/folder]]

[[folder:Comic Strips]]
* ''ComicStrip/{{Peanuts}}'': Linus is constantly telling Sally, "I'm not your sweet babboo!" In this case, HE means it, but SHE doesn't. The phrase became so [[MemeticMutation popular]] that there's even a strip compilation book entitled ''I'm Not Your Sweet Babboo!''
[[/folder]]

[[folder:Music]]
* "I'm Not Your Boyfriend" by 3OH3.
* 10cc, "I'm Not In Love".
* The song by Music/MichaelJackson, "Billie Jean", is focused on this trope. [[spoiler:But, it was implied that while Billie Jean was not his lover, her son was indeed his son.]]
[[/folder]]

[[folder:Theater]]
* In ''Theatre/ThePajamaGame'', Babe, in denial that she's attracted to Sid, sings "I'm Not At All In Love," a claim which is met with smirking derision from the girls:
-->''It's easy to see that her daffy grin\\
Is the grin she always wears,\\
And she's breathless because\\
She ran up a flight of stairs!\\
Obviously! Naturally! Certainly!''
* Many examples in musical theatre of people singing ''you'' are not my boyfriend/girlfriend. Of course, whether they mean it or not, they'll certainly be in love with that person by the end of the show (sometimes the end of the song) :
** "Make Believe" from ''Show Boat'' ("might as well make believe I love you... for to tell the truth, I do!").
** "People Will Say We're in Love" from ''Theatre/{{Oklahoma}}''.
** "If I Loved You" from ''Theatre/{{Carousel}}''.
** In "I'll Know" from ''Theatre/GuysAndDolls'', Sky and Sarah sing about their perfect loves and how unlike Sarah/Sky said love will be. A few scenes later, they start to realise their attraction to each other.
** "Don't Like You" from ''The Beautiful Game'' (a.k.a. ''The Boys in the Photograph'') by Creator/AndrewLloydWebber and Creator/BenElton.
* Roger and Mimi in ''Theatre/{{RENT}}''. In the song "Happy New Year", Benny sings, "Does your boyfriend know who your last boyfriend was?' and Roger responds, "I'm not her boyfriend!".
[[/folder]]

[[folder:Visual Novels]]
* ''Franchise/AceAttorney'':
%%** In the ''Phoenix Wright'' manga collection, Pearl asks Phoenix about his relationship with Maya, and is met with five Psyche-locks, which within the games, signify a secret that is as well-guarded as possible.
** Gumshoe outright uses this line for defense, as well, with regards to [[CuteClumsyGirl Maggey Byrde]]. Phoenix doesn't buy it for a moment.
--->'''Phoenix:''' (Note to self: Gossip with Maya about this later!)
** Apollo has this reaction in ''[[VisualNovel/PhoenixWrightAceAttorneyDualDestinies Dual Destinies]]'' when Klavier assumes Athena is his girlfriend.
* Everyone seems to be under the impression that Toko and Reiji have some kind of relationship in ''VisualNovel/KaraNoShoujo.'' Rather than being defensive about it, Reiji is mostly bemused.
* Yamato in ''VisualNovel/MajiDeWatashiNiKoiShinasai'', regarding Miyako, all the time--though he's [[JustFriends actually got a reason to do so]]. Except, of course, in her path, where he comes around rather quickly once he's made his decision. There are also choices in the game where, if you actually say she ''is'' your girlfriend, you'll immediately end up in an ending with her, whether you were joking or not.
* Rin Tohsaka in ''VisualNovel/FateStayNight'' can get like this. Especially prevalent in one scene in "Unlimited Blade Works", where Shirou can warn Lancer to stay away from Tohsaka, to which she keeps desperately denying that she and Shirou are in love, while Shirou just smirks and doesn't deny anything, and Lancer laughs his ass off at Rin's reaction.
-->'''Rin''': Why are you not saying anything? This is looking as if we actually are in love!
-->'''Lancer''': (laughing) Please. There's no "as if" about it!
* In ''Higurashi Daybreak'', the ''VisualNovel/HigurashiWhenTheyCry'' fighting game, when you're playing Story Mode as a Keiichi-Rena team, most of the adults will ask if you're a couple. Rena is delighted at the notion, but Keiichi protests. This actually becomes the stakes for the last two battles, thanks to a LoveTriangle with Mion at her most {{Tsundere}}.
* ''VisualNovel/ZeroEscape'' Trilogy:
** ''VisualNovel/NineHoursNinePersonsNineDoors'': In the cargo room after Akane's gushing over Junpei's photo starts reaching SickeninglySweethearts levels Santa tells them to knack it off, to which Akane says that they're not a couple.
** ''VisualNovel/VirtuesLastReward'': When Quark refers to girl from Tenmyouji's photo as "his first love" Tenmyouji replies that she's not. Sigma doesn't buy it for a second and calls Tenmyouji "hopeless romantic".
** ''VisualNovel/ZeroTimeDilemma'': It's Junpei's turn to say it about Akane when Carlos asks if they're couple.
[[/folder]]

[[folder:Web Original]]
* In ''WebVideo/TheGuild'', Codex insists that "there is no circumstance under which [she and Zaboo] are together in any shape or form". [[StalkerWithACrush Zaboo]] feels differently.
* Simon from ''Literature/ShadowOfTheTemplar'' takes this to new heights when he tells Jeremy that he's not even his friend despite them being familiar with each other in the horizontal position. [[spoiler:He ''does'' answer "maybe" instead of denying the possibility outright when the criminal who kidnapped Jeremy asks him if he's his boyfriend, but goes right back to denying it soon after.]] ''Then,'' when he finally overcomes enough (but not all) of his [[ObliviousToLove Selective Obliviousness]] and {{Tsundere}} issues to call Jeremy a friend, Sandra scoffs and says that they're "special friends" at the very least, to his chagrin.
* In "Thanks For The Feedback: Date With Doug," WebVideo/TheNostalgiaChick denies having any attraction to WebVideo/TheNostalgiaCritic. It was a little too firm to be believed anyway, but lost all credibility when Doug and Lindsay confirmed later that the characters had already had sex at this point.
** She does it again (just with the word "ally" instead of "boyfriend") when Creator/MaraWilson wants to kill her to hurt him, but contradicts herself a few minutes later when they both mope about missing him.
* ''Literature/WhateleyUniverse'': Ayla says it about his childhood friend, Jadis, in [[http://whateleyacademy.net/index.php/content_page/9-original-canon/851-hank-5-to-the-new-year Hank 5: To the New Year!]]:
--> "Which means you've already outed her to your other girlfriend in the Bad Seeds," Toni accused him.\\
"If I can find this information, Jadis would already have it," Ayla replied primly. "And Jadis is ''not'' my girlfriend!"\\
[...]\\
"Well, now we know what information you traded [[spoiler:Knockoff for]] with your girlfriend," Toni smirked.\\
"I did ''not'' 'trade' information [[spoiler:about a fellow Possie]] with Jadis, and for the last time, ''Jadis is not my girlfriend''!" Ayla growled.\\
"Does [[spoiler:Addy]] know you're two-timing her?" Nikki interjected, waggling her eyebrows suggestively.\\
"Jadis is a friend, who happens to be a girl. She is not my girlfriend!" Ayla repeated, the forced calmness in his voice as plain as the cute nose on his face.\\
"No, she's just someone you like to exchange continental 'hellos' with," Toni smirked.\\
"One might even say, Parisian style hellos," Nikki murmured wickedly.\\
Ayla glared at Nikki and Toni. "I only kissed Jadis once, and that was on her cheek!" Ayla defended himself.\\
"And we all know how that turned out," Billie murmured,\\
[[/folder]]

[[folder:Web Serial Novel]]
* In ''Literature/StatlessAndTactless'' Joe is convinced that Soo and Ian are dating because they occasionally allude to meeting offline. Any incident involving such an event getting mentioned invariably leads to the group getting sidetracked to refute it.
[[/folder]]
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