A popular, often young, female TV star is fairly flat-chested, or at least not very "pronounced", in her most recent or well-known role... but then you see her in an awards show or otherwise live event, and my, has she grown.

This {{trope}} only applies to cases wherein the [[HehHehYouSaidX titular]] mammaries were quite obviously suppressed for the sake of the role (SweetPollyOliver cases included), and so if the actress underwent breast-oriented plastic surgery or a reasonable length of "developing time" had passed between the role and her more recent appearance, it is not an example of this trope (though this trope does give the tabloids plenty of "Did she get a boob job?" fodder).

Often a result of NotAllowedToGrowUp. Compare/contrast BigBraToFill, where the character has a big bust but the actress doesn't. Fits into RealityIsUnrealistic because television and film once didn't like to show girls ''in between'' childhood and womanhood (you were supposed to be either a sex symbol or not), though those standards have loosened from how they were in the 1950's.

If you're looking for plain ol' hiding of one's bustiness for whatever reason, see HiddenBuxom.
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!!Examples

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[[folder:Film]]
* Done in-universe ''Disney/{{Mulan}}'' by the titular heroine to hide her true gender because women were not allowed in Ancient China's military. She only gets found out after already proving her worth, which becomes a plot point later due to the earned trust of her comrades.
* This was famously done to JudyGarland to make her look younger for the role of Dorothy Gale in ''Film/TheWizardOfOz''.
* Rumors of this being done deliberately in ''Franchise/StarWars'' are false. True, Carrie Fisher's breasts were taped down to prevent {{Gainaxing}} under her costume, but she resorted to that expedient herself after George Lucas told her that women couldn't wear bras in space! [[Creator/GeorgeLucas Lucas]] eventually got the HotterAndSexier he originally wanted with the notorious "metal bikini" slavegirl outfit in ''Film/ReturnOfTheJedi''. Fisher went on to relate the whole sordid affair in her candid (and screamingly funny) memoir ''Wishful Drinking''.
* Creator/ChristinaRicci tied her breasts down when she played Wednesday Addams in the movie version of ''Series/TheAddamsFamily'' and ''Addams Family Values''. Puberty did not miss her. In what was almost assuredly a reference to this fact, her opening scene of ''Now And Then'' has her duct-taping her bra.
* This happened to Creator/EvannaLynch in the [[Literature/HarryPotterAndTheOrderOfThePhoenix fifth]] and [[Literature/HarryPotterAndTheHalfBloodPrince sixth]] ''Film/HarryPotter'' movies. While not overly endowed compared to other young actresses her age, she is noticeably bustier than her [[KatieLeung other]] [[Creator/EmmaWatson female]] [[BonnieWright castmates]].
** Creator/EmmaWatson is reported to have resorted to binding herself during some of the later ''Film/HarryPotter'' movies, due to "growing up" faster than her character.
* A strange in-universe example in ''{{Orphan}}'', which has Leena Klammer put cloths and bandages around her breasts to [[AdultsDressedAsChildren look more childlike]].
* In ''Literature/TheRailwayChildren'' (1970), Sally Thomsett (Phyllis) had to have her breasts strapped down because she was [[DawsonCasting playing a much younger girl]]. In fact, this was such a big secret at the time that she wasn't allowed to smoke or drink off the set during filming, or for quite a while after that to keep up the pretense.
* A rare adult example: JulieAndrews did this in ''ThoroughlyModernMillie'' in order to achieve TheRoaringTwenties-appropriate UsefulNotes/{{pettanko}} "flapper" look and {{lampshaded}} it within the {{film}}.
** A second JulieAndrews example is ''VictorVictoria'': Victoria (and consequently Andrews) was forced to bind her breasts in order to disguise herself as the "female impersonator" Victor. Once again it's {{Lampshaded}} when Victoria complains about the discomfort and expresses a fear that she's damaging her figure.
** The exchange in it's entirety for your amusement:
--> '''Toddy:''' Now we've had two major obstacles to overcome...
--> '''Victoria:''' [sobbing] My bosom...
--> '''Toddy:''' First, to convince everyone that you're a man...
--> '''Victoria:''' It's been damned uncomfortable.
--> '''Toddy:''' What has?
--> '''Victoria:''' Strapping down my bosom.
--> '''Toddy:''' Now all you have to do is go out there, and you'll be a star for the next twenty years.
--> '''Victoria:''' Toddy, if I have to strap down my bosom for the next twenty years they're going to look like two empty wallets.
* Tami Erin for her role in "The New Adventures of Pippi Longstocking" (1988). It became obvious during a {{Nickelodeon}} interview promoting the movie when she wore a tight aerobics leotard without the binding.
* In a rare non-age-related example, Lindsey Lohan's bust was digitally reduced for ''Film/HerbieFullyLoaded'' to avoid [[UnfortunateImplications 'offending' audiences.]]
* SelenaGomez in ''Film/RamonaAndBeezus''. While not too much bigger than the average teen actress her age, then 17-year-old Selena's large bust was a bit too big for the [[DawsonCasting 15-year old she was playing]] and wore bras that made it look smaller.
* In-universe in ''Film/LesMiserables2012''. ╔ponine wraps herself up to look like a boy during "One More Day".
* Another in-universe example happens in ''ShakespeareInLove'', when Viola binds her breasts and wears a wig and fake mustache so she can charade as a man and act in Shakespeare's next play. [[spoiler:Amusingly, after she ends up going on stage sans all of that to play Juliet, the queen gets everyone off the hook for having a woman on stage by pretending that Viola ''was'' a man, just with a very good female disguise.]]
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[[folder:Literature]]
* Delfina in Diane Stuckart's LeonardoDaVinci mysteries is a SweetPollyOliver who binds her breasts and apprentices herself to Leonardo under the name "Dino". She goes to great lengths to conceal her bandages.
* Alanna in the ''Literature/SongOfTheLioness'' quartet, as part of her [[SweetPollyOliver disguise]]. She starts out using bandages, but eventually gets a special corset.
* Happens to Kel sometimes in ''Literature/ProtectorOfTheSmall''. Her breasts are more noticeable when they first start growing in ''Page''; all the muscle she builds makes them less prominent. Her build, height, and short haircut results in occasionally being taken for male, especially if she's wearing a heavy shirt.
* Averted in MonstrousRegiment, much to Polly Perk's [[ACupAngst shame.]]
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[[folder:Live-Action TV]]
* JennetteMcCurdy from ''ICarly''. In between Season 1 and 2, the actor who played Freddie grew up.. and Jennette grew ''[[UnusualEuphemism outward]]''. After that, the show took to wrapping Sam up in layers of 3 or 4 t-shirts, but she's kept on growing. A few episodes in season 3 they forgot about this, such as the rabbi scene in ''iSaved Your Life'', and it's pretty obvious what they are doing. [[MaleGaze Tropers who were paying attention]] noticed that during one scene where Sam was jumping on a trampoline things were not bouncing realistically due to the amount of strapping.
* Julianna Rose Mauriello has had to have her breasts taped down since puberty on ''LazyTown'' since Stephanie is supposed to be 8 years old (or 9 now, since one year's passing has been acknowledged). She was 17 during the last filming.
** That said, 'Stephanie' (Solla Stir­a) was played by actual adult women in all the original Icelandic plays from before the TV show, and one of them was quite busty with no attempt to do anything about it; while Julianna definitely had grown between seasons and doesn't really look any bigger in out-of-character shots from the same era.
* Annette Funicello and the other female [[MickeyMouseClub Mouseketeers]], supposedly at WaltDisney's personal insistence.
* Buffy in later seasons of ''FamilyAffair''. It [[TearJerker did not end well]] for [[Analysis/NotAllowedToGrowUp Anissa Jones]], her actress.
* On ''SmallWonder'', the plastic vest Tiffany Brissette wore to simulate Vicki's access panel had to be periodically refitted over the show's four-year run. In the fourth-season episode "Double Dates", Brissette shows us how uncomfortably tight her wardrobe had become.
* Soleil Moon Frye discussed this in an interview on a Canadian talk show for teens only a couple of months after ''PunkyBrewster'' was canceled. She suffered from gigantomastia and later underwent a breast reduction.
* Jordan Todosey in ''Series/{{Degrassi}}'', where she's playing a [[{{Transsexual}} transboy]]; Adam's shown binding (with an Ace bandage) onscreen. Later it's mentioned in-series that Adam gets a chest compression vest.
* In ''GilmoreGirls'' Liza Weil had to play herself down with binding and loose clothing for most of the first four seasons as Paris Geller because of her size and when she started the series, [[DawsonCasting was a 24 year-old playing a convincing fifteen year-old sophomore]]; outside of a few scenes and a date prep at the start of season three, she was either dressed in a constricted sweater or a loose blouse. Seasons 4-7 at Yale without the uniform saw her dressing without much need to hide her natural form.
* Played with in ''{{Skins}}'' when Sketch binds down her breasts to try being more appealing to Maxxie, who is gay.
* Referenced in ''{{Frasier}}'' wherein Daphne reveals she was once on a popular television show in England: "Of course, by the end of the series, I was 16, 5 foot 10, and they had me boozies bound up tighter than a mummy."
* From ''GameOfThrones'', MaisieWilliams is 17 years old, but her character Arya Stark is only meant to be around 12 or 13. While Maisie ''is'' fairly short for her age, she is considerably more well-developed than her character most likely would be, and thus she is almost always costumed in thick, padded shirts or tunics.
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[[folder:Other]]
* The Flapper era of TheRoaringTwenties: Slim was in, and every rebellious flapper girl suppressed her breasts as much as she could possibly get away with.
** There was even a company called Boyishform that made bras just for this reason; Maidenform was so named as a TakeThat to the whole craze.
* PattyMaloney once wrote that she had her chest bound whenever she portrayed a little girl.
* When older cast members of the musical version of ''Theatre/{{Annie}}'' would start to develop, many did this in order to avoid being fired from their roles.
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[[folder:Webcomics]]
* Natani from ''TwoKinds'' had her soul severely damaged by magic, and the only way to save her life was by bonding what was left of her soul to her twin brother's. Since she's also trying to pass as a male most of the time, she uses this trope to keep her physical gender a secret.
* Yuki of ''Webcomic/SparklingGenerationValkyrieYuuki'' ''tried'' to do this, but ended up passing out due to her inability to breathe. Being a victim of GenderBender and all that.
* Tai from QuestionableContent mentioned that she did this at one point to pass as a boy; she still does it occasionally for a pretense of androgyny. (In her earliest appearances, she distinctly has no bosom, as opposed to later.)
* {{Megatokyo}}'s resident cute robot girl Ping did this at one point in an attempt to return to her "plain" appearance. Upon learning the truth, Junko Ibara berates her for doing this, saying, "It's not good for them!"
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[[folder:Real Life]]
* Pre-op [[{{Transsexual}} Trans men]] and {{Drag King}}s are often required to do this in order to pass, unless, of course, they have the body of a UsefulNotes/{{Pettanko}} naturally. It is anywhere from slightly to very uncomfortable, depending on the size of their breasts and the method used to flatten them out.
* Also a common practice for women playing male characters in stage productions.
* Sometimes, female {{cosplay}}ers dressed as male characters - called crossplayers - will practice this to look more convincing as males. The end result would be a {{Bifauxnen}} quite often. Utilizing {{Sarashi}} to achieve this is fairly common.
** [[TelevisionIsTryingToKillYou However, utilizing Sarashi will often result in real damage to your ribs and chest and large amounts of bruising.]] It's recommended to buy an actual binder and use that over bandages.
* Proper fit for a traditionally draped woman's kimono often calls for the help of Ace bandages or {{Sarashi}}. Pre-war Japanese fashion favored a Grecian column build that often required waist padding, chest binding, and a hip girdle to achieve, even at the time. Women today are (on average) substantially heavier and curvier...and proper fit is accordingly even more difficult to achieve.
* Before women were allowed to serve in military forces, they did this and tried to pass it off as being young men (because the beard thing tends to be an issue when trying to pass off as an adult male) and thus serve. An effective technique would be to use of a decoy of pretending to be too young to serve, and have someone figure that out, and then [[InfractionDistraction think they knew your secret]]. This charade tended to end if the woman in question was injured, because almost inevitably either their pants or shirt would have to come off...
* Jessica Simpson began her career in show business as a Christian pop singer. During this stage of her career she would often tape down her breasts for performances because her promoters felt that an attractive blonde with D-cup boobs wasn't the best image for a gospel singer.
* Along with PetitePride, [[TheFlapper flappers]] of TheRoaringTwenties wore special flattening bras to make them appear younger and more boyish.
* Commonly done to Eastern European gymnasts to maintain a petite, child-like, figure held to be more aesthetically appealing within the sport.
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