transformation

📅 Updated:2026-09-24

🕒 Created:2011-06-29

🆔 ID:1718

Description

thumb #6256615

A transformation is any major change to a character's shape or form.

Tags about transformations

Transformation Type by Result

Generalized Qualities

~ Tags that describe what trait of a character changes, but not what it changes into

body_part_transformation - When a character transforms into a body part.
form_transformation - See table below.
gender_transformation - See table below.
species_transformation – When a character is transforming from one species to another.
mental_transformation - When a character's transformation causes mental changes.

Transformation Tables

Rows represent initial forms ("before") and columns represent the end result ("after").

Symbols

! – Less than twenty (20) posts
X – No posts/unused tag
W – No wiki page
A – Missing alias(es) or implication(s)

Form Transformation Table

Transformations to the same relative body type (e.g. "feral to feral") are not tagged.

Gender Transformation Table

Transformations to the same gender (e.g. "female to female") are not tagged.

Specific Qualities

species_transformation
- robotization
- plant_transformation
- goo_transformation – When a character is transformed by goo or into goo.

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body_part_transformation
- breast_transformation
- butt_transformation
- foot_transformation
- genital_transformation - When a character's genitals transform.
  - cock_transformation - When a character transforms into a penis.
  - vulva_transformation - When a character transforms into a vulva.
- tail_transformation

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inanimate_transformation – When a character transforms into an inanimate object or animate_inanimate
- clothing_transformation
  - sock_transformation
  - underwear_transformation
- cum_transformation - When a character transforms into cum.
- dollification
  - plushification/plushie_transformation
  - sex_toy_transformation
- food_transformation
- inflatable_transformation
- petrification – When a character is petrified into some material.
short_stackification
tf_into_fictional_character – When a character transforms into a pre-existing (and, more often than not, more famous) character.
toonification

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mental_transformation
- hypnosis
- intelligence_loss - When a transformation causes a character to lose intelligence.
- identity_death - When a transformation causes a character's previous identity to be removed entirely.

Modifiers

~ Tags that describe details about the final form

demi_transformation - A human turning into an animal or object, with human features left intact
latex_transformation
partial_transformation - When transformation leaves part or most of the subject's body unchanged.

Growth / Expansion Related

expansion – When a pre-existing body part of a character is growing in size.
- breast_expansion – When a character's pre-existing breasts swell/grow. Some transformations may cause this.
- butt_expansion – When a character's buttocks swell/grow.
- genital_expansion – When a character's pre-existing genitals swell/grow/expand.
  - balls_expansion – When a character's pre-existing testicles swell/grow. Usually accompanies penis expansion.
  - penis_expansion – When a character's pre-existing penis grows or expands.
- tail_expansion – When a character's pre-existing tail grows or expands.
- tongue_expansion – When a character's tongue grows longer, wider, and/or thicker. Some specific transformations may involve this, such as transformations into amphibians.
growth – When a character is growing new body parts. Note that this also has been used for growing in size, and is additionally often tagged for expansion and inflation.
- breast_growth – When a character grows new breasts. Most often found in gender transformations, but it's also used for flat chested characters who are growing breasts.
- genital_growth – When a character grows new genitals, such as a penis or a vulva.
- muscle_growth – When a character's muscles swell/grow. Some transformations may cause this.
- tail_growth – When a character grows a new tail. Most posts tagged with this involve species transformations.
- wing_growth – When a character grows new wings.
inflation – When a character's body or parts thereof swell by being filled with air, gases, fluids, etc. Some transformations may involve this, such as transformations into pool toys.
size_transformation – When a character is changing in size.
- body_size_growth – When a character is increasing in body size (enlarging).
- shrinking – When a character is decreasing in size.

Transformation Type by Cause

transformation_mechanism - The tag for when the reason for the TF is specified/voiced by a object or character within the scene. {wip}

Objects

transformation_by_item

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transformation_by_wearable
- suit_transformation/costume_transformation - Transformed by a suit, living or otherwise, into what the suit represents.
- transformative_clothing
- transformative_mask
- transformative neck-piece
  - transformative_collar
  - transformative_necklace
- transformative_piercing

Exposure to Substances & Effects

transformation_by_substance
goo_transformation - When a character is transformed by goo or into goo.
transformation_ray

Character Actions

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transformation_through_masturbation - Whether during, or caused by masturbation.
transformation_through_sex - Whether during, or caused by sexual activity.

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transformation_through_vore - Whether as prey or pred

Other

Transformation Type by Context/Situation

By state of transformation

imminent_transformation
mid_transformation - in the middle or in between stages of a transformation
after_transformation

Consent

consensual_transformation – When the character being transformed intentionally causes or encourages it.
accidental_transformation
forced_transformation – When the transformation isn't voluntary.

How it's related to biology

evolution_(transformation) - When a fictional species transforms into a different connected species, like in pokemon and digimon.
metamorphosis - A real biological process in which an animal physically transforms and often changes behavior.

Effect on numbers of characters

splitting - When one character becomes multiple.
- mitosis - When one character becomes multiple duplicate characters.
merging - When multiple characters become one.
fusion - Result where multiple characters was merged into a new character with characteristics of both.

Other

duo_transformation
group_transformation
implied_transformation - Posts that suggest a transformation has happened or is happening, but there's not enough evidence to definitively confirm it.
lust_transformation - When a character gets increasingly lustful as part of a transformation.
permanent_transformation - When a transformation is explicitly stated to be irreversible.
scat_transformation – When fecal matter plays a large role into a transformation.
timed_transformation - When the time since the transformation began is indicated in the media.
transformed_clothing - When a character's outfit changes with their body.
twinning - When a character transforms into a copy of another character that is shown in the image.