[[quoteright:260:[[Literature/TheFountainhead http://static.tvtropes.org/pmwiki/pub/images/fountain_couple.jpg]]]]
[[caption-width-right:260:They posed for this shot, but they weren't acting.]]

->''"Aww, I bet those two are gonna get married. In real life. Which they did."''
-->-- '''Linkara''', ''WebOriginal/HistoryOfPowerRangers, [[http://atopthefourthwall.com/history-of-power-rangers-power-rangers-rpm/ RPM]]''

A pair of performers fall in love while working together, possibly even getting married and/or having kids over time. This happens quite a bit in Hollywood and is prime tabloid fodder. Such relationships seem to have a high breakup rate, but there are some long-lasting marriages that started this way.

What is actually being filmed is largely irrelevant. They're often a couple onscreen as well--when you spend all day pretending to be in love with someone, you may end up BecomingTheMask. However, it doesn't always happen that way. The point of the trope is that behind the scenes the two fall for each other.

TheMuse is a SubTrope, which is about a male movie director falling in love with his lead actress. CastIncest is another subtrope, namely the first type where the couple met while playing relatives, which adds a level of {{Squick}} before further thought reveals that it's no different from any other role.

In live theatre circles, the phenomenon is known as a "showmance" and tends to [[SickeninglySweethearts annoy their costars to no end]].

Compare ActorShipping, where the fans ''want'' this to happen.

* [[RomanceOnTheSet/LiveActionFilms Films Live-Action]]
* RomanceOnTheSet/LiveActionTV
* RomanceOnTheSet/{{Music}}
* RomanceOnTheSet/{{Theatre}}


* Model Kate Upton and pitcher Justin Verlander began to date after meeting on the set of a commercial for the ''Major League Baseball [=2K12=]'' video game.

* Creator/KenichiSuzumura and Creator/MaayaSakamoto were first acquainted with each other when working on ''Mizuiro Jidai'' in 1996. In 2004, they were cast together as Shinn Asuka and Lunamaria Hawke, respectively, in ''Anime/MobileSuitGundamSEEDDestiny''. As the years went by, they seemed to constantly play love interests in a lot of titles they were cast in together, such as [[VideoGame/FinalFantasyVII Zack Fair and Aerith Gainsborough]], [[LightNovel/KaraNoKyoukai Mikiya and Shiki]], and in a more one-sided case, [[Manga/OuranHighSchoolHostClub Hikaru and Haruhi]]. Then in 2011, they got [[HappilyMarried married]].
* This happened between American voice actors Creator/MonicaRial and Matt Kelly while they were doing voice acting in ''Manga/BlueSeed.'' Monica was Momji and Matt was Kusanagi. They married after the voice dubbing was done. But they divorced shortly afterwards.

* In the short story "Who Am I This Time?" by Kurt Vonnegut, the main character completely takes on the persona of whatever character he performs in the community play. A beautiful but socially awkward woman, when performing ''A Streetcar Named Desire'' with him, falls in passionate love with his persona. By living a life of RomanceOnTheSet through various plays, they become HappilyMarried.
* In-Universe in ''Literature/{{Redshirts}}'', Jenkins, whose wife had been Redshirted years before, sends a love letter to the actress who played her in Chronicles of the Intrepid when Dahl and the others go to the real world. In one of the epilogues, it is implied that she then ends up in a relationship with the actor who played him.
* In the commentary for ''Literature/TheTalesOfBeedleTheBard'', Professor Dumbledore mentions the unfortunate casting choices in a [[SchoolPlay theatrical version]] of the story ''The Fountain of Fair Fortune'' - the students playing "Amata" and "Sir Luckless" had been dating until "one hour before the curtain rose," at which point "Sir Luckless" dumped "Amata" for the girl who was playing "Asha."

[[folder:Web Comics]]
* InUniverse in ''Webcomic/DarthsAndDroids''. Annie and Jim, respectively the players of [[CrossPlayer Anakin and Padme]], start dating after Episode II. They continue dating in the original trilogy, but change characters to Leia and Han.

[[folder:Web Original]]
* Lindsey Ellis (WebVideo/TheNostalgiaChick) and Todd Nathanson (WebVideo/ToddInTheShadows). In-universe, this has been translated to the Chick having an obsessive and completely unrequited interest in him, while he continues stalking [[Creator/AllisonPregler Lupa]].
** There have been several [[Website/ThatGuyWithTheGlasses Channel Awesome]] couples, including Lupa and WebVideo/{{Phelous}}, and [[WebVideo/WhatTheFuckIsWrongWithYou Nash]] and [[WebVideo/JesuOtaku JO]].
** [[WebVideo/PawDugan Paul Schuler]] and Elisa Hansen (who plays Maven of the Eventide, Dr. Tease and the Makeover Fairy in the Nostalgia Chick's videos) got engaged on the 5th of November, 2012, and are now married with a baby boy named Grey.
* At least one couple in ''RolePlay/WeAreAllPokemonTrainers'' have ended up in a relationship just like their characters.

[[folder:Western Animation]]
* The French voices of Homer and Marge in ''WesternAnimation/TheSimpsons'' (Veronique Augereau and Philippe Peytieu) end up married for real.
* The voices of [[OfficialCouple Kif Kroker and Amy Wong]] in the Latin American dub of ''WesternAnimation/{{Futurama}}'' are a married couple.
* Wayne Allwine and Russi Taylor, the voices of Mickey and Minnie Mouse, were HappilyMarried until Allwine's death.
* Slightly one-sided with ''WesternAnimation/{{Recess}}'': Jason Davis, who played Mikey, had a crush on Creator/AshleyJohnson, who played Gretchen, when the show was on. In the show itself, there's no shipping.