->'''Gunn''': Couple of weeks ago [Connor] was wearing diapers. Now he's a teenager? \\
'''Cordelia''': Tell me we don't live in a soap opera.
-->-- ''Series/{{Angel}}'', "A New World"

Soap Opera Rapid Aging Syndrome is the device by which writers -- possibly frustrated with a CousinOliver -- send a young child off in order to get back someone old enough to remember lines ''and'' have hot and steamy romances. Not to mention the avoidance of all those [[http://www.sag.org/content/coogan-law pesky child labor laws]] aimed at protecting children in show business, and [[http://www.nyspcc.org/nyspcc/ the public and private agencies]] that investigate abuses.

On daytime soaps, pregnancy is a staple storyline. However, the resulting baby is rarely seen after its paternity and/or baby switch has been resolved. When a few years have passed, the child returns as a teenager old enough to have a summer romance.

On sitcoms, babies are cute and give adult characters opportunities to act silly, but toddlers are of little use in comedy until they're old enough to be smart-mouths on their own. Thus, sitcom kids generally turn four or five within two years of their birth. For example, Chrissy Seaver on ''Series/GrowingPains'' or Andy Keaton on ''Series/FamilyTies''. Cases of sticking with the same child, such as the Olsen twins as Michelle Tanner on ''Series/FullHouse'' or Erin Murphy as Tabitha Stephens on ''Series/{{Bewitched}}'', are the exception.

Different from PlotRelevantAgeUp in that the latter is at least explained via magic[=/=]AppliedPhlebotinum[=/=]BizarreAlienBiology, or the transformation is actually shown on-screen. Do not confuse the two when adding examples.

Stephen King referred to this as the "Kid Trick" in ''Danse Macabre'', his text on American horror media in the 20th century.

Generally abbreviated as SORAS in certain television communities. Not to be confused with multiple people named Sora, nor with liberal billionaire George Sor'''o'''s.
%% The above phrase "multiple people named Sora" refers to the multiple fictional characters with the name, not a violation of the OneSteveLimit with people named Sora. Because of the ubiquity of the name, a pothole is unnecessary and would violate the TV Tropes policy on chained potholes.

Contrast with NotAllowedToGrowUp and ComicBookTime.


[[folder:Anime & Manga]]
* Subverted by Himawari from ''CrayonShinChan'': She goes overnight from being a normal 0-year old baby to acting like a 2-3 year old toddler that goes in all fours and uses BabyTalk, but [[RunningGag she's still 0-years old]].

* Jim Gordon's kids in the Chris Nolan ''Batman'' films. In ''Film/BatmanBegins'', a scene where Batman goes to talk to then Sergeant Gordon briefly shows Gordon's wife feeding a baby in a high chair. Six months are supposed to have passed between ''Film/BatmanBegins'' and ''Film/TheDarkKnight'', but the kids now look to be a lot older -- their actors were seven and ten at the time of the film's release. This was apparently done so that Gordon could have a deeper relationship with the son but it causes a headache trying to figure out exactly what the timeline for the two films was.
* Sean and Michael Brody of ''Film/{{Jaws}}'' are little kids in the first film. In the second, Sean's still a kid while Michael is a teenager. The following two films got around the issue by making them both adults.
* ''Franchise/{{Rocky}}'': Rocky jr. (Robert) was nine in ''RockyIV'' when Rocky went to Russia to fight Drago. When he and Adrian return home at the beginning of ''Film/RockyV'', his son is now in early adolescence. How long were they in Russia?!
** Supposedly the Russians were pissed off at Drago's defeat and Rocky spent some time in a quiet and desolate labor camp in retaliation.

* In Genesis, when Joseph met his younger brother Benjamin, the latter is a "young boy" (Gn 44.22). A while later when Israel's family comes in Egypt, the "child" is father of ten sons (Gn 46.21).
* OlderThanFeudalism, amazingly enough: In book three of ''Literature/TheAeneid'', Ascanius, Aeneas' son, is young enough for Dido to hold him on her lap. By the next book, which takes place no more than a year later, he's old enough to ride a horse and command the respect of the other Trojans. (Virgil originally wrote Ascanius as being old enough to command men, then began a rewrite where Ascanius was younger and managed to get the first three books done, before suffering a case of AuthorExistenceFailure.)
* In ''Twenty Years After'', the sequel to ''Literature/TheThreeMusketeers'', King Louis XIV is underage and thus being manipulated by the regents, his mother and her lover. In some scenes he seems like a precocious ten-year-old (i.e. when the people demand to see that he is asleep in bed, and not fleeing the city), and he is referred to as a child. However, towards the end the queen remarks that in a year he will be of age -- making him a young man in his late teens. It's possible that Dumas just called him a child because he wasn't an adult yet, but his actions don't quite seem to match up.
** Except that in the 17th century, the age at which adulthood was believed to begin was younger than it is in modern times. Louis XIV declared his coming-of-age in 1651, when he was only 13 years old.
* Deliberately invoked by the witches in ''Discworld/WyrdSisters'' when the witches realize their Hero is only 3 years old. Instead of waiting for him to grow older, they [[spoiler:move the entire kingdom of Lancre 15 years into the future]]
* In the novel ''The Amorous Umbrella'' (sequel to ''The Incredible Umbrella''), our hero ends up in a universe based in 1950's soap opera tropes, where he is trapped for several years. Being a dimensional outsider, he ''notices'' the SORAS cases, but nobody else does, even when it's pointed out to them. It worries him that a stepson he acquired, now an infant, will be an adult in five or six years and may - in an Theatre/OedipusRex-inspired plotline common with 1950's soap operas - attempt to kill him.
* In ''Literature/TimeEnoughForLove'', when Lazarus Long saves Dora from her parents' burning house, she seems to age several years over at most a few weeks. When her father tosses her out the window and Lazarus catches her, she seems to be a toddler (he identifies her at first sight as a "baby"). On the ride into town, she talks well enough to be three years old or so. When he takes her to visit her parents' grave not long afterward, she acts kindergarten age at least. Of course, Heinlein's later fiction has a sentimental preoccupation with what he calls "baby girls," by which he can mean any human female who hasn't reached puberty, so maybe he wasn't sure himself how old Dora was when Lazarus adopted her.
* In the ''Literature/AdrianMole'' series, Glenn is born in 1990, but is already twelve years old in 1997 (when Adrian discovers he is Glenn's father) and then becomes a soldier in 2002 at age seventeen.
* In ''TheBerenstainBears''. It starts out with Small (later, Brother) Bear. According to ''The Berenstain Bears and the New Baby'' he went exploring, snorkling, and kayaking by himself. Then, Sister Bear was born. The next book, she was about two years younger than Brother. [[ComicBookTime 30 years later]] Honey Bear was born. Honey rapidly aged to toddlerhood, and in ''The Berenstain Bears Go Back To School'', it is revealed that Brother is entering 3rd grade and Sister is in 1st. That means Brother was 2 when Sister was born, and Sister was 5 when Honey was born (and Mama was pregnant essentially the entire Bear canon). This includes the Bear Scout series (Cub Scouts are required to be in first grade before entering), and the chapter books where Sister is implicated to be in at least 5th or 6th grade.

[[folder:Soap Opera]]
* Victoria Newman on ''TheYoungAndTheRestless'' aged from 8 or so to 15 in a single winter in 1991, after aging more or less in real time up to that point. Then three years later, the same thing happened to her younger brother Nicholas. And it has since happened to Nick's children and various other assorted younger characters.
** Colleen Carlton was one of them. Born onscreen in 1992, she was written out in 1995. She returned six years later, played by 15-year-old Lyndsy Fonseca.
* From ''Series/DaysOfOurLives'':
** The cumulative effect of this led to Tom Horton and his great-great-grandson Scotty Banning both working as doctors in the same hospital ''at the same time''.
** It also led to a man sleeping with a girl and her grandmother, and it being only mildly creepy each time.
** Belle was taken upstairs as a little girl one day, came down a teenager the next. Her SummerRomance also received a plot relevant age up from preteen to teen.
* From ''GeneralHospital'':
** Though not as pronounced, Maxie Jones went from toddler to 7 years old in a few weeks, as well. Notable because she would [[TheOtherDarrin eventually be played]] by the same actress who played SORAS-ed Belle (Kirsten Storms).
** Also on GeneralHospital, Sonny Corinthos' son Michael was put into a coma that lasted for a year. When he awoke, he was at least 6-10 years older and played by a new actor. His brother Morgan and half-sister Kristina were also aged accordingly, and returned played by new actors. The newly teenaged Michael {{lampshades}} this by asking Kristina: "When did you become such a hottie?"
** GH also contains one of the more notable aversions in American daytime: Robin Scorpio, who's been played by the same actress (Kimberly [=McCullough=]) since 1985, when both were six years old.
* Both an example and an aversion, also on ABC, is the character of Starr Manning on ''OneLifeToLive''. The character was born in 1996, and aged to six when Kristen Alderson started playing the character several months before her seventh birthday in 1998. Since then, the character and actress have aged at the same rate.
* From ''AsTheWorldTurns'':
** Luke Snyder was originally born in 1995. Since then, his character has been SORAS-ed two times; in 2001, when nine-year-old Christopher Tavani took over the role, and 2005, when fifteen-year-old Jake Weary played the part. He aged more or less normally when Van Hansis finally took over the role.
** Chris Hughes who was born on-screen in 1986; by 2003, he was a doctor.
** Tom Hughes was born onscreen in 1961; by the late 1970s, he'd been to Vietnam and back and was attending law school.
* From ''Series/TheBoldAndTheBeautiful''
** Bridget Forrester born on-air in 1992 turned 13 in 1997, and turned 18 in 2000. She has aged naturally since then.
** Hope Logan was born in 2002 and for several years aged naturally, portrayed by child actors of respective age. In 2010, however, a 21-year old actress took over.
* Among a ''host'' of SORAS-ed characters currently on ''AllMyChildren'':
** J.R. Chandler, born 1989, an adult husband and father since 2003.
** Jamie Martin, born 1990, is now a med student.
** Colby Chandler, born 1999, somehow celebrated her 16th birthday in 2006.
** When we first met Lily Montgomery in 1993, she was played by 8 year-old Michelle Trachtenberg. In 2006, she's 18 and was portrayed by 16-year old Leven Rambin.
** 15-year old Creator/SarahMichelleGellar portrayed Kendall Hart as a 16-year old girl upon the character's debut in 1993. Due to various plot discrepancies, the character was instantly aged to 22/23 years old several months later with a revised birthdate of September 25 1970. When the character returned in 2002, Kendall's birthdate was reverted back to September 25 1976, the original birthdate intended for the character in 1993.
** Subverted with Miranda Montgomery, born 2004, went from being played by a ten-year-old Mackenzie Aladjem in 2011, to the 19 year-old Denyse Tontz. Due to the five-year TimeSkip, it's more of a case of DawsonCasting. However the other wiki doesn't mention her age, so don't be surprised if she's in her 20's within a year or two.
* British soaps like ''EastEnders'' are surprisingly void of this trope. Characters either have the same actor from childhood, or, as a child, they move away, and years later come back as a different actor (but, importantly, as the correct age for the time they have been away). They generally pull this off by having an invisible age between being a baby and a small child where the character is not seen (''CoronationStreet'''s Tracy Barlow, for example spent several years "upstairs, listening to music", before she was finally old enough to do interesting things like have a teenage marriage, or sell her baby from a later relationship (only to decide she wanted it back when she set her sights on the father again), or murder her abusive/cheating boyfriend. It does happen occasionally, but only by a year or two - Ian Beale of EastEnders turned 21 two years after turning 18.
** British soaps are prime-time and generally get a bit more critical respect than their US counterparts, making tropes like this rather discredited. It also makes the actors want to stay on longer, and given the [[LongRunners lengthy]] nature, this can lead to some impressive stints. The character of Ken Barlow was part of the original cast of CoronationStreet in 1960 - he is still there, has aged appropriately, and has always been played by the same actor.
* ''{{Passions}}'' had two: Little Ethan and Endora.
* The Finnish soap opera ''Salatut Elämät'' has two kids first age from babies to schoolchildren during one summer, and later, from that to teenagers, during a time which in show accounted for one apartment fire. Incidentally, one of the kids helped catch the EvilTwin bad guy, yet she was kidnapped by said bad guy when she was a kid just one season ago.
* Elle Robinson in ''{{Neighbours}}'' was 19 years old in 2005. Quite an achievement when she was only born 16 years earlier.
* From ''HomeAndAway'':
** Duncan Stewart (son of Alf and Ailsa) - originally aging normally from baby to toddler to young child, the character then disappeared only to reappear again as a teenager a couple of seasons later.
** Also Martha, who arrived as an 18 year-old going on 19 in 2005, despite being born onscreen in 1988.
*** This may not count: it's only off by about a year, and it's not unreasonable to assume that out of every two and a half weeks there's at least ONE day that nothing significant happens and it's just silently skipped, the same way we presume the characters use the toilet without us actually having to watch them do so.
** However, it should be noted that the show otherwise averts this, with Sally Fletcher being the most obvious example.
* ''GuidingLight'':
** First it gives us Leah Bauer. Sending her to boarding school when she was about a year old was one thing, but when she came back a year later she was 14, twelve years older than her ''older brother.''
** Phillip Spaulding on GuidingLight was introduced in 1977 as being approximately eight years old; after leaving for a time in 1980, he was recast and returned in 1982, now played by 22-year old Grant Aleksander. The character's age progression, from 1982 on, paralleled that or Aleksander, who would continue to play Phillip, off and on, through Guiding Light's 2009 cancellaton.
** Chrissy Blake was a little kid in the late 70s, was gone for 8 eights, returned as a full adult. One of the better cases at least.
* New Zealand's ''Shortland Street'' does this to Tuesday Warner, played by Olivia Tennet. Although born in 1995, she comes back to Ferndale in 2007 at fourteen years old.

[[folder:Live Action TV]]
* Little Ricky on ''Series/ILoveLucy''
* Andrew from ''Series/FamilyTies''.
* Nelson and Winnie on ''Series/TheCosbyShow''
* A ''Franchise/StarTrek'' example that is not a Plot-Relevant Age-Up: ''[[Series/StarTrekDeepSpaceNine Deep Space Nine]]'''s Tora Ziyal. Yes, she's an adult when we meet her, but she's played by three actresses: first the then-21 Cyia Batten, followed by 26-year-old Tracy Middendorf, and finally, when [[WordOfGod the writers decided she was going to be romantically involved with Garak]], 33-year-old Melanie Smith. That's 12 years of aging in one season's worth of episodes (Batten's last appearance is in 4.14, Smith's first is 5.14.) Though the ''character'' technically didn't age (super-rapidly, at any rate), the constant actor switching led to some confusion about just how old Ziyal was supposed to be.
** The ones that ''were'' PlotRelevantAgeUp situations were less "someone becomes older as a plot point" and more "Textbook SORAS with a one-line HandWave." For completeness sake... Alexander's TheOtherDarrin-ing in TNG takes him from preschooler to ten-ish in a few episodes and an ''older teenager'' by ''Series/StarTrekDeepSpaceNine'', and Naomi from Voyager's sudden skipping of a few years to take her from infant to major recurring character, her usual actress being her third. Memory Alpha, the Star Trek wiki, even refers to Soap Opera Rapid Aging Syndrome by name in both these cases. It's especially glaring when aliens who live twice as long as humans grow up in one-third the time.
** The trope is also mentioned by Memory Alpha for Molly O'Brien, who was born in "Disaster" and inexplicably aged at three, maybe four times the usual rate to add some pathos to "Rascals"...according to most of the ways used to relate stardates to our timekeeping, anyway.
* ''Series/TheFreshPrinceOfBelAir'' [[LampshadeHanging called attention to this]] when it replaced the newborn Nicky Banks with a six-year-old actor (Ross Bagley): Nicky walked in the room while Jazz was talking to Will, prompting the former to ask who he was. Will says "That's baby Nicky!" while mugging to the camera and making a "growing" gesture with his hands. A frustrated Jazz shouts "Man, I'm going back to the streets where things make sense!" (Will also does a double-take when he sees "older" Nicky for the first time; in the same scene, he has a similar reaction when his aunt, played by a different actress than in previous seasons, appears.) This of course, is the same show where Will once asks why the house doesn't have a roof ([[NoFourthWall followed by a camera pan upwards to show the studio set's ceiling]]).
* ''StepByStep'' featured the young baby of the family aging from an infant in one season, to a speaking toddler of pre-school age in the next.
* ''GrowingPains'' also featured this trope with Chrissy, though they didn't implement it for until a season after the actual birth.
* Catherine Willows' daughter Lindsey on ''{{CSI}}'' seemed to age jump a year or so several times during the series. then they got worse with it and skipped at least a year to two years with Eli Brown. He was a baby at his dad's funeral in season 9 and about 6 in season 13.
* Lucy Messer got a mild case, but only approximately six months to a one year skip on ''{{CSI NY}}''. She was born in season 5, and would be 4 if not for the age up plus the six month skip beetween seasons 8 and 9. Danny put her age at 5.
* In ''BoyMeetsWorld'', four-year-old Morgan Matthews [[BrotherChuck disappeared]] for a season or so, then unexpectedly reappeared significantly older. This was lampshaded when one character commented on her long absence and she said, "That was the longest time-out I've ever had."
** Cory, Shawn and Topanga also age an extra two years; Mr. Feeny says in an early episode that they're part of the Class of 2000, but they graduate from high school in 1998. This appears to be a Matthews family trait; baby Joshua was born in 1999 but seemed to be two or three years old in 2000 ([[Series/GirlMeetsWorld and 17 in 2014]]).
*** Possible [=WMG=] might suggest this is a case of Dawson Casting and that the character is 12 meaning that he would have been born in 2001 while Riley the sister likely the year after as her actress was born in 2001. Logically he could be almost as old as 13 if he was born in 2000 if you assume Topanga was 2 months pregnant during the finale and wasn't aware of it.
* Why wait until the child is even ''born?'' In ''Series/StargateAtlantis,'' Teyla goes from not visibly pregnant at all and still trying to undertake semi-dangerous missions to ''hugely'' pregnant between episodes. A conversation from the previous episode is referenced in a way that makes a TimeSkip seem unlikely. Possibly explainable by BizarreAlienBiology, but as the StargateVerse's HumanAliens are descended from actual humans, that, too, is unlikely.
** This was a case of real life intruding - the actress playing Teyla really was pregnant. The actual length of the pregnancy is reasonably sensible, but due to differences between the filming schedule and the time supposedly passing between episodes it appears to progress rather erratically.
* In ''Series/GhostWhisperer'', Delia's son Ned aged from a boy just celebrating his 13th birthday (actually was a part of the plot in one episode), to a high school Junior (at ''least'') in less than six months.
* On the first season of ''Series/DegrassiHigh'' several of the freshman were only in seventh grade the season before, on ''Series/DegrassiJuniorHigh'', the most obvious being Arthur's younger cousin Dorothy, who's now in the same grade as him.
* In the first season of ''Series/TheOC'', Kaitlin Cooper is referred to as a fifth-grader. Two seasons later, she's fourteen, which means an extra year has been added on somewhere. It's an interesting case because the new actress was only a few months older.
* Quentin Kelly went from being around eleven to about fifteen on ''GraceUnderFire'' when Jon Paul Steuer left the show [[note]]Allegedly his mother pulled him out due to Rhett Butler's increasingly erratic off-camera behavior, the last straw being an incident where Butler decided to "show off" her new breast implants by flashing the cast and crew [[{{Squick}} including (12 year old) Steuer]][[/note]].
* ''FullHouse'' was a little bit more subtle about this. Jesse and Rebecca's twin boys Nicky and Alex go from infants in season 5 to pre-verbal, long haired toddlers in season 6. Not as egregious as most examples, but a bit noticeable.
** Completely averted with Michelle, who starts off about 1 year old and grows at normal speed.
*** Of course, they kept the same actresses for Michelle, which would've made it hard to pull off.
* Part of the plotting for what would have been the fifth season of ''Series/{{Farscape}}'' was compressed into ''The Peacekeeper Wars''; specifically, Aeryn being pregnant (which had actually happened toward the end of the third season). Since the miniseries was only four hours long, the creators HandWaved this by saying that Aeryn, from being born into a Peacekeeper battle regiment, had been genetically modified so that her pregnancy would only last a week or so. She goes from completely flat to big-belly pregnant almost in-between scenes. They also use the explanation that BizarreAlienBiology (and presumably AppliedPhlebotinum) allow Peacekeeper females to hold pregnancies in stasis for up to 7 years (to prevent complications due to female soldiers becoming untimely pregnant) makes the {{Handwave}} that pregnancies progress rapidly once released plausible.
* ''MyFamily'' appears to take place in real-world time with a year between each series (judging by in-show references and the Christmas specials) but Kenzo, born in series four, is mentioned as being nine years old in series ten. Also extends to Janey, who is fifteen years old in the first series and claims to be "almost 30" in the tenth.
* Lily on ''ModernFamily''. The twins who originally played her became increasingly difficult to work with during season two, and were replaced by four year old Aubrey Anderson-Emmons for the next season, also making it an example of TheOtherDarrin.
* ''{{Series/Last Man Standing}}'' employs this trope. Tim Allen's grandson Boyd, is a toddler in potty-training at the start of season one (but vanishes at about the halfway mark). In season two he is now a 5 year-old. Not to mention the boy's mother is now TheOtherDarrin.
* ''Series/{{Angel}}''. Connor had a PlotRelevantAgeUp that turned him into a sixteen year old boy after growing up in a hell dimension [[YearInsideHourOutside that ran at a faster time]]. The following year he ends up sleeping with 22 year old Cordelia and his age is repeatedly stated to be eighteen. They could have plausibly made him seventeen, so Connor would be the same age Series/{{Buffy|the Vampire Slayer}} was when she had sex with 243-year old Angel, [[DoubleStandard but well...]]
* ''{{Lost}}'' had this problem with Walt from the start. The events of Season 1 lasted only 44 days, yet his actor already aged well over a year - compare his scenes in The Pilot to his Flashback in Exodus, which showed events of the same day. The only realistic solution available to writers was to have him be kidnapped by others and all his CharacterDevelopment resulted in an AbortedArc: his appearances in Seasons 2 and 3 were brief and were shot in such a way as to disguise his new height. They were able to show him more after the show made a TimeSkip of three years, yet he still aged way too much in that time period.
* ''Series/PowerRangersOperationOverdrive'' has Thrax, who, while too alien to judge his age precisely, is clearly a full-grown adult. He's nine. No, we don't get any handwaves about his species reaching maturity rapidly, nor do any of the characters see it as unusual.
* In ''Series/{{Rome}}'', the teenage Octavian goes off to war for a year or two and returns as a man, played by a new, older actor. Several characters note how different he looks, with one blaming military rations. The physical change coincides with a change in Octavius' character from the clever child Octavius to the MagnificentBastard Caesar Agustus.
** Also inverted with Vorenus' children. Vorena the younger is played by the same pre-teen actress throughout the entire series, despite the show covering somewhere between ten and twenty years. Baby Lucius ages up to around seven but then stays that age despite Caesarion, who is several years younger than him, growing to about ten years of age.
* Averted on ''MadMen''. Although multiple child actors are used to portray the growing children in the cast, they don't grow any faster than the timeline dictates. (The show tends to jump forward about a year between seasons.) Meanwhile, because the show runners want to hold onto Kiernan Shipka's outstanding acting talent, Sally Draper actually appears to age ''slower'' than the show's calendar would dictate.
* Tommen Baratheon in ''Series/GameOfThrones''. For seasons 1 and 2, he was portrayed by 10-year-old Callum Wharry, in a mostly background, non-speaking role. The character was absent for season 3, but for season 4 the role was recast with 16-year-old Dean-Charles Chapman. This is done after his character becomes an AscendedExtra because of [[spoiler: his brother's death. He is now the King of the Seven Kingdoms, and thus is now central to several upcoming storylines (including a marriage to 32-year-old actress Natalie Dormer).]]
* Defied in ''Series/RaisingHope'', where [[MakingUseOfTheTwin the twins]] playing Hope grow up in the show and done deliberately because she was vital to the shows premise, going through all the normal stages of childhood development (sleeping through the night, potty training, staying in bed, etc). This has added to its charm, as the show made great use of her reaction shots without being cloying and they would talk in halted phrases later in the shows run. There is a [[TheOtherDarrin notably different, dark haired, baby]] used in the pilot.
* ''Series/LastManStanding'' did this to Boyd, who started at 2 in the first season and went to 5 in the second. His mother Kristin had Boyd when she was 17, and that remained true as well, making her 19 in the first season and suddenly 23 in the second. Everyone else remained the same age. Also notable in that Boyd had very little presence in the first season, limited to just being carried around and/or being told he is a handful, while he became an active character in the second season by virtue of just being able to hold a conversation, also with some minor sub plots surrounding him.

[[folder:Newspaper Comics]]
* In the first decade of ''{{Peanuts}}'', some characters aged far more rapidly than others. Notably:
** Schroeder, introduced in early 1951 as an infant, within a year became first a toddler piano prodigy, and then not only fully verbal but apparently the same age as Charlie Brown, Shermy and friends.
** Lucy was a crib-bound toddler in her first appearances, and aged until she reached a point where she's apparently slightly older than Charlie Brown (based on the fact that Charlie Brown and her little brother, Linus, are usually depicted as being in the same class).
** Linus, introduced in late 1952, was somewhere between infant and toddler for two years, and a typical preschooler for the next year or two. Then, in 1957, he rapidly became the precocious Christian theologian he would remain ever after. (He never gave up his security blanket, however.)
** Also happened later on. Sally Brown was the first character born into the strip, in 1961 (Snoopy mentions waiting "until her eyes are open" to go visit her). Theoretically, this should make her at least several years younger than the rest of the cast. But by the early 70s she was more or less the same age as Linus. Similarly, almost overnight in the 90s, Rerun Van Pelt went from a toddler to kindergarten age.
** Of course, [[ComicBookTime the characters are still kids]] when the comic ended in 2000.
* Guille in ''{{Mafalda}}'', went from a newborn baby to a speaking child in only a few comic strips.

[[folder:Tabletop Games]]
* Weird variant not involving actors: In the original ''{{Ravenloft}}'' boxed set, a family tree of the d'Honaire bloodline includes the notation of a Gerard d'Honaire, born 726, died 733. Fourteen real-world years later, the sourcebook ''Legacy of the Blood: Great Families of the Core'' depicts this same Gerard as still dying in 733 ... but as a teenager ''applying for medical school''.
** Than it's most likely a {{Retcon}}. those things happen very often between D&D editions.

* Curiously, this happens to the Princes in the Tower in Creator/WilliamShakespeare's ''Theatre/RichardIII,'' if one assumes continuity with ''Henry VI Part III.'' In the final scene of the latter play, Henry VI has just been murdered and Edward IV has just become the father of a son. Then, in the early scenes of ''Theatre/RichardIII,'' Henry's recently-deceased corpse is brought onstage, indicating that not much time has passed between plays (Richard has a line that suggests it's three months, but that is its own set of problems); a few scenes later, we meet Edward's son, now a pre-teen with a younger brother. This is all the result of Shakespeare's condensation of the historical timeline.
* This happens to Wednesday Addams in ''Theatre/TheAddamsFamily''. In Charles Addams' original cartoons and all the adaptations, she is a little girl. In TheMusical, she got boosted to 18 and engaged to be married. [[ExpositoryHairstyleChange Even her signature braids are gone]].

[[folder:Video Games]]
* ''TheSims2'' suffers from this. It's entirely possible to play one family through several generations whilst the rest of the neighbourhood is static.
** ''The Sims 3'' does slightly better in that the entire neighbourhood ages as you play rather than just the active household, but there is still the problem of disproportionate age groups. For example, in either game it's quite likely that a baby born while her/his older sibling is in high school will itself start high school before the older kid graduates.
* ''VideoGame/{{Fable|I}}''. 'Congratulations, you've just spent 10 years in a depressing evil fortress! Your child is no longer an infant, but a regular child now! Oh, and your wife's still the same as ever. As well as all the other NPC children'.
** A better example is if you have a child, then another in a different town. When you get back to your first they'll no longer be an infant.
*** The Guildmaster from the first game is an old man when you're a child, and is STILL an old man when the player is.
*** And no matter how long you take to do (or get around to doing) certain quests, your mother and sister won't age beyond what their set ages are. So you can end up being a 60 year old man, when your mother is set at being 50 or so, and your (older) sister still appears to be in her mid 20s.
* ''DiddyKongRacing'' [[UpdatedRerelease DS]] introduced the current design for Tiny Kong, who now looks considerably more developed than her older sister Dixie Kong.
* In the various ''HarvestMoon'' games, the aging of your child is rarely consistent with reality. But the most {{egregious}} example is probably in ''Animal Parade'', with the rival children. Two weeks after they're born, bam--the rival children suddenly and rapidly age to being about six or seven years old, with zero explanation, and then they [[NotAllowedToGrowUp stay that way for all eternity.]]
* Bipin and Blossom's son in ''VideoGame/TheLegendOfZeldaOracleGames'' grows from a baby to a child during the course of the first game you play, then into a teenager during a linked game.
* Similar to the ''Diddy Kong'' example above, Coco was originally presented as Franchise/CrashBandicoot's pre-teen sister but beginning with ''CrashNitroKart'' she hit puberty. Her design is curvier and she ditched the overalls for [[BareYourMidriff a short t-shirt]] and jeans.

* Parodied in ''KillroyAndTina'': [[http://www.graphicsmash.com/comics/killroyandtina.php?name=killroyandtina&view=single&ID=4904 "Yes (she had her baby), on Tuesday. It is now 16 years of age.]]
* Referenced in ''Webcomic/ElfOnlyInn''. [[http://www.elfonlyinn.net/d/20020527.html "Come my lady, let us go have three kids who will be grown up in a week."]]

[[folder:Western Animation]]
* In a somewhat rare animated example, the 1951 DonaldDuck [[ClassicDisneyShorts cartoon]] "Lucky Numbers" made Huey, Dewey, and Louie into teenagers for just one short, as the plot required the trio to be able to drive a car.
* On ''WesternAnimation/FamilyGuy'', Cleveland Jr. was a child between the age of 7-10; on the spinoff ''TheClevelandShow'', he is now 14 and looks completely different even though no one else has aged. Peter comments on this in the pilot episode.
** Subverted. [[spoiler:It's revealed that Fat Cleveland Jr is actually a spy who killed and replaced the original Cleveland Jr]].
** In one episode, Peter donates sperm, which results in a lesbian couple giving birth to Bertram, the same kid Stewie met when he went into Peter to prevent them from having more kids. In the course of apparently no time at all, Bertram ages to about Stewie's age (about age 1). Either that, or a year passed and nobody but Bertram changed.
*** While the character's models haven't changed, the characters have aged about 2 years. Meg goes from 16 and learning to drive during the first season to 18 and "legal" over the course of the series. Chris also goes from middle school to high school. Stewie, however, [[NotAllowedToGrowUp remains approximately 1 year old.]]
* ''WesternAnimation/TheSimpsons'' made this concept even weirder by having Apu's children age from newborn babies to kids old enough to walk and talk in the same time it took Bart and Lisa and especially Maggie to... [[NotAllowedToGrowUp remain exactly the same age.]]
** Of course, the problem seems worse to casual viewers, as it is easy to confuse Sanjay's kids for aged-up versions of Apu's kids, and it is rare for it to be pointed out that the older children are Sanjay's (since they stopped appearing before Apu had any children).
** To make things even more complicated, Bart's love interest (through arranged hillbilly marriage), Mary Spuckler, runs off to New York between Seasons 19 and 24. Come her next appearance, Mary's physical appearance has changed dramatically with [[http://images.wikia.com/simpsons/images/8/8d/Mary_Spuckler.PNG little]] [[http://images2.wikia.nocookie.net/__cb20120908140118/simpsons/images/thumb/d/d5/Ms_promotionalpic2.jpg/640px-Ms_promotionalpic2.jpg explanation]].
** On a far more radical scale, Ling Bouvier has completely bypassed Maggie in age in the episode "Changing of the Guardian", with the ability to simultaneously play a flute, spin a lasso rope, do a floor routine, spin two hula hoops, and paint a portrait of her mother and aunt.
* Parodied in the ''WesternAnimation/{{Futurama}}'' SoapWithinAShow ''All My Circuits''. Antonio Calculon Jr. goes from being a child acting robot to a fully grown bending unit (played by Bender) that is in a coma in the course of one episode.
* ''Literature/{{Franklin}}'' sees the characters of Bear's sister Beatrice and Franklin's sister Harriet shoot from being newborn babies to preschoolers in a program where the other child characters are generally NotAllowedToGrowUp. What's particularly jarring is that Harriet isn't introduced until several seasons after the show's original premiere, but is later retconned as a preschooler into several [[RecursiveAdaptation recursive book adaptations]] based on earlier installments of the TV show.
* When Toshi's sister Akiko first appeared on ''WesternAnimation/AmericanDad'', she was distinctly pre-pubescent. The next time she showed up, she was at least the same age (if not older) as Steve and company.
** Greg and Terry's daughter Liberty was born through Francine as a surrogate in the season 3 episode "Surro-Gate", in the season 8 episode "Spelling Bee My Baby" she is now about 3 or 4.