'''Basic Trope''': A character's breasts get bigger through magic or science.
* '''Straight''':
** Alice decides to get breast implants.
** Perverted MadScientist [[TheMagnificent Bob the Boastful]] invents an enlarging ray and decides to test it on his [[ButtMonkey lab assistant Alice]]'s breasts.
* '''Exaggerated''':
** Alice decides to get the biggest breast implants she can afford, but they end up being so big she can't stand up anymore.
** Bob's enlarging ray goes haywire and explodes, and Alice's breasts end up so big they knock Bob over from five feet away.
* '''Downplayed''':
** Alice decides to get small breast implants that change her from an A cup to a B cup.
** Bob's enlarging ray only manages to turn Alice's breasts from an A cup to a B cup before it blows out the lab's fuse box.
* '''Justified''':
** Alice is [[ACupAngst flat-chested and has always wanted bigger breasts]].
** Alice is a VainSorceress. Utilizing magic to enhance her looks is part of her job description!
** Bob always wanted a more [[ScienceHerosBabeAssistant well-endowed lab assistant]].
* '''Inverted''':
** Alice gets a breast reduction because her natural breasts are uncomfortably large.
** Alice's butt gets bigger.
** [[BreadEggsBreadedEggs Alice's butt gets smaller.]]
* '''Gender Inverted''':
** Next, Bob the Boastful uses his new enlarging ray to give himself breasts, because he [[ManIFeelLikeAWoman always wanted to feel like a woman]].
** Or he uses it to make his [[UnusualEuphemism Raygun]] [[BiggerIsBetterInBed Larger]].
** The enlarging ray makes Bob's pectorals a lot more pronounced.
* '''Subverted''':
** Alice tries expanding her breasts but ends up having to get a breast reduction because the doctor botched the operation.
** Bob's enlarging ray has no apparent effect on Alice's breasts, so he goes back to work on it and sends her to go get more supplies.
* '''Double Subverted''':
** ...but then she gets hit with a Breast Expansion ray gun.
** ...but when she enters the basement warehouse, some of the leftover GreenRocks from last episode start to [[PowerGlows glow]], and Alice suddenly finds herself going from Bs to Ds.
* '''Parodied''':
** Alice is showing off her new implants at a party when they start expanding out of control and explode.
** Alice is showing off her magnificent huge breasts at a party when her [[TheRival rival]] Brenda, jealous of all the attention she's getting, pokes Alice's chest with a pin and causes the balloons she's stuffed in her shirt to deflate.
** Seeing how well his enlarging ray works, Bob uses it on his KillerRobot to create an [[HumongousMecha unstoppable killing machine]] and conquer the world. He is only slightly disappointed when the ray [[FemBot gives his robot huge breasts instead]].
** Or he misses and hits himself instead, to his confusion.
** Alice's boobs get so huge they act like weather balloons, and start carrying her away!
* '''Zig-Zagged''': Alice gets huge breast implants, but the weight and jeers are too much and she decides to have them removed...but then she realizes she liked being busty, so she gets even bigger ones the second time.
* '''Averted''': Alice is flat chested and considers the idea of getting implants but never goes through with it.
* '''Enforced''': "Okay, time to [[{{Fanservice}} play to the fetishists]] again. What fetish haven't we done yet?" "Big breasts." "But we can't introduce any new characters this episode... [[EurekaMoment oh!]]"
* '''Lampshaded''': "Oh I hate being flat-chested, if only there were some kind of, I don't know, some kind of [[BuffySpeak breast...augment...procedure...thingy]] to fix this!"
* '''Invoked''': "Check it out! I just got them!"
* '''Exploited''':
** Bob double-taps Alice with the boob-ray, in order to make her breasts expand enough to immobilize her.
** Alice expands her breasts to [[TheTease tease]] Bob.
* '''Defied''': "I think they're big enough"
* '''Discussed''': "They're new? Can I...like, ''squeeze'' them?"
* '''Conversed''': "You know, I could've sworn Alice was flat-chested just a week ago!" "You missed the episode where she got hit with the Breast Expansion ray."
* '''Deconstructed''':
** Alice is an A-cup who gets breast implants because she wants to be popular. However it backfires as her friends and family now view her as shallow and while she's popular with the men, [[AllMenArePerverts it's not in the way she wanted it to be]].
** Alice gets back pain.
* '''Reconstructed''':
** Alice is an A-cup who gets huge breast implants because she wants to be popular; she finally gains some self-esteem, finds a loving boyfriend, starts a family, and becomes a glamor model.
** Alice gets massages for her back pain.
* '''Implied''': Alice has unrealistically large breasts. People speculate about whether they're really natural.
* '''Played for Laughs''':
** [[TheChewToy Bob]] gets hit by Alice's expanded breasts and gets AmusingInjuries.
** Alice's augmented assets are subject to [[BoobBasedGag Boob-Based Gags.]]
* '''Played for Drama''':
** Bob gets hit by Alice's expanded breasts and gets him seriously wounded.
** Alice is getting her breasts [[https://en.wikipedia.org/wiki/Reconstructive_surgery reconstructed]].
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