''More Than Fifty-Four Negi and Chisame Threesomes'' is ExactlyWhatItSaysOnTheTin -- a collection of vignettes and short joke fanfics exploring possible [[OneTrueThreesome menages-a-trois]] betweeen Negi Springfield, Hasegawa Chisame, and a variety of their fellow characters from ''Manga/NegimaMagisterNegiMagi''. Written by Tropers/OverMaster, the stories range from the extremely short and funny (some are less than thirty words long) to somewhat longer pieces that explore the idea of a specific [=OT3=] in detail. More recent installments of the series have expanded the series beyond its original premise, with vignettes devoted to relationships that aren't threesomes or don't involve Negi or Chisame.

The series is remarkable for spawning a trio of series [[FollowTheLeader inspired]] by its vignettes -- ''Fanfic/MahouSenseiAnya'', the tale of what happens when Anya Cocolova is sent to Mahora Academy instead of Negi, ''Decadent Habits'', and ''[[http://www.fanfiction.net/s/6454700/1/A_Bunch_of_Chisame_Shipping_Fics A Bunch of Chisame Shipping Fics]]''[[note]]The first section of ''Chisame Shipping'' was actually written as a spoof of the threesomes in this story[[/note]]. It also introduced the CrackFic idea that ''Negima'' series antagonist Tsukuyomi is the daughter of ComicBook/TheJoker. Several of its elements have also influenced, or will influence, the settings and events of ''Fanfic/UnequallyRationalAndEmotional''

Can be read [[http://www.fanfiction.net/s/6260479/1/More_than_Fifty_Four_Negi_and_Chisame_Threesomes here]].

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!!This series provides examples of:

* ABoyAndHisX: ''[[WesternAnimation/TheGrimAdventuresOfBillyAndMandy The Grim Adventures of Fuuka and Fumika]]''
* AuthorAppeal
* ButtMonkey: Chamo, as usual.
* CrackFic
* CrisisCrossover: Referenced to in ''Only Sane Man.''
* DownerEnding: ''Negi, Chisame and Evangeline''.
** The same premise is then used for BlackComedy in ''Negi, Chisame and Chachazero''.
* EvenTheGuysWantHim / EvenTheGirlsWantHer: Negi and Chisame have these effects on their respective genders.
* EveryoneIsBi: ''Multiple Paths, Same Destination'', by implication, for an ''entire multiverse''.
* ExactlyWhatItSaysOnTheTin: And then some.
* FollowTheLeader: Since "Negi, Chisame and Tsukuyomi", a lot of fics have put forward suggestions for Tsukuyomi's parentage, especially her father. Fanfic/TakamachiNanohaOf2814 was inspired by this fic to make her father ComicBook/TheJoker.
* HeartIsAnAwesomePower: ''Negi, Chisame and Sakurako.''
* MassiveMultiplayerCrossover: The largest vignette to date, ''Multiple Paths, Same Destination'', which has Negi's harem coming to encompass an ''entire multiverse'' ...
* OffscreenMomentOfAwesome: The Mahora bound forgotten students plus Nagi, Arika and the ''Manga/LoveHina'' cast save both worlds off-screen while Ala Alba takes a beating in Mundus Magicus. Ala Alba isn't pleased.
* OnlySaneMan: ComicBook/TheJoker of all people.
* ParentalIncest: ''Negi, Chisame and Arika'' (Negi's mother for the unitiated) and ''Negi, Chisame and Nagi'' (his father). And then there's the ''Decadent Habits'' vignette that inspired an identically-named multichapter story.
* {{Polyamory}}: ''Multiple Paths, Same Destination'', for an ''[[RunningGag entire multiverse]]''. Lampshaded by its final lines.
-->And they all lived happily forever after.
-->Literally, since they had [[Anime/TenchiMuyo Juraian tech.]]
* SkinnyDipping: ''Negi, Chisame and Akira''
* UmbrellaOfTogetherness: ''Negi, Chisame, and Chachamaru''
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