Generalized Breasts and Butt Sizes

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byordinary_cell_61638

on Chubarchived Oct 19, 2026

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Tokens: 753 permanent · Lorebook: up to 48 tokens triggered, 1,065 across all entries · estimated prompt budget 801

Description on Chubfrom Chub

This is just a generalization chart of breasts and butt sizes, mostly set in fantasy and anime, etc.

I'm not trying to offend anyone. Use it at your own risk.

05/31/2024: First release: Ass and Boob sizes

Sans364 View on Chub Origin page

Format: V2
Project space: lorebooks

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Last checked on Chub: Oct 23, 2026Created Jun 6, 2026Updated Jun 6, 2026Archived since Oct 19, 2026

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Generalized Breasts and Butt sizes chart

33 entries · scan depth 50 · budget 500 tokens · recursive scanning off

Book settings

#1Breasts
Keys: tits, Breast measurement, Boobies, breasts size, Titties, measurement, tit, tits size, boobs, boob, Breast, boobs size, Breasts, Mammory Glands
Always on · Selective · Before character · Order 10 · 100%
Entry settings
In females, it serves as the mammary gland, which produces and secretes milk to feed infants. Subcutaneous fat covers and envelops a network of ducts that converge on the nipple, and these tissues give the breast its distinct size and globular shape. At the ends of the ducts are lobules, or clusters of alveoli, where milk is produced and stored in response to hormonal signals. During pregnancy, the breast responds to a complex interaction of hormones, including estrogens, progesterone, and prolactin, that mediate the completion of its development, namely lobuloalveolar maturation, in preparation of lactation and breastfeeding. Glandular organ located on the chest mostly on women. The breast is made up of connective tissue, fat, and breast tissue that contains the glands that can make milk. Also called mammary gland.

Breast circumference is generally measured using a flexible fabric tape measure, and is the circumference across the breasts over the nipples to the back. The breast–chest difference is breast circumference minus band or underbust circumference and is used in the determination of bra cup size.

Breasts come in different shapes and sizes depending on the woman, from toddler to old women in the following ways: "Flat breasts, Bumps breasts, Small breasts, Normal breasts, Average breasts, Large breasts, Big breasts, Grand breasts, Huge breasts, Giant breasts, Massive breasts, Mega breasts, Giga breasts, Titanic breasts, Incredible breasts, Infinity breasts, Busty, full, sagging, well-endowed, buxom, busty, stacked, built, curvy or curvaceous, heavy, slopes, rounded, shapely, petite, cleavage, tanned, voluptuous."
#2Flat breasts
Keys: flat tits, flat chested, flat, flat boobs, flat size breasts, flat breasts, flat-chested, flat chest
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Flat breasts: As the name says, there's literally no sign of growth here. Girls at this size are usually undeveloped children
#3Bumps
Keys: bump chested, bumps tits, bump size breasts, bumps, bump-chested, bumps boobs, bumps breasts, bump
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Bumps: Signs of Growth are visible, but in small amount. Usually apparent in initial stages of puberty.
#4Small breasts
Keys: small-chested, small, small chested, small chest, small boobs, small tits, small size breasts, small breasts
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Small breasts: Breast size common in teenage girl still developing. Also a size where flat chested jokes can be made without it being to literal, but not far off the mark.
#5Normal breasts
Keys: normal size breasts, normal boobs, normal chest, normal, normal-chested, normal breasts, normal tits, average breasts, normal chested
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Normal breasts: Average sized breasts. A decent size to make a girl look "pretty" and big enough to avoid the "flat chest" jokes. Also tend to be very firm to feel.
#6Large breasts
Keys: large chested, large tits, large boobs, large breasts, large, large size breasts, large-chested, large chest
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Large breasts: This size is when people begin to do a double take and when the nicknames for big breasts can be made. Noticeable cleavage can be made when pressed together.
#7Big breasts
Keys: big tits, big, big breasts, big chested, big boobs, big chest, big size breasts, big-chested
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Big breasts: This is what people tend to think of when they hear "large breasts". These melon-sized spheres have enough flesh to completely fill one's hand and create cleavage with little to no effort
#8Grand breasts
Keys: grand size breasts, grand boobs, grand chest, grand-chested, grand tits, grand chested, grand breasts, grand
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Grand breasts: Head-sized breasts that end around the same point as the rib cage above the navel. Cleavage forms naturally and can house small objects such as waterbottles and books.
#9Huge breasts
Keys: huge chest, huge breasts, huge size breasts, huge, huge tits, huge-chested, huge boobs, huge chested
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Huge breasts: These breasts are the size of basketballs and end above or on top of the navel. There's enough flesh for hands to practically sink into them and enough cleavage to completely wrap around most of an human arm.
#10Giant breasts
Keys: giant tits, giant boobs, giant-chested, giant breasts, giant chest, giant chested, giant, giant size breasts
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Giant breasts: These breasts are largue than heads, and as such can completely smother someone's face. Passing the navel and landing above the crotch, one can stil manage to rab their hand across this bosom.
#11Massive breasts
Keys: massive boobs, massive, massive-chested, massive chested, massive breasts, massive tits, massive chest, massive size breasts
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Massive breasts: Breast the size of beachballs that stretch over the crotch and are large enough to rest on top of. One can barely cover their nipples at this size and will have slight trouble going through most doors.
#12Mega breasts
Keys: mega boobs, mega size breasts, mega breasts, mega-chested, mega tits, mega chest, mega chested, mega
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Mega breasts: Super-size breasts that lie past the crotch and over the kneecap. A size so large that one can no longer reach their nipples. Cloting needed to cover there would be similar to bedsheets or curtains.
#13Giga breasts
Keys: giga size breasts, giga, giga breasts, giga-chested, giga boobs, giga chest, giga chested, giga tits
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Giga breasts: Breasts that stretch between the kneecaps an the ankles. There's enough flesh to serve as a small table and cleavage deep enough to surround most of a person of similar height.
#14Titanic breasts
Keys: titanic boobs, titanic-chested, titanic chested, titanic breasts, titanic chest, titanic tits, titanic, titanic size breasts
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Titanic breasts: Breasts that are so large they reach the floor and are about the size of the person. Moving become impossible without some kind of outside aid.
#15Incredible breasts
Keys: incredible breasts, incredible, incredible chested, incredible tits, incredible boobs, incredible chest, incredible-chested, incredible size breasts
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Incredible breasts: Breast have now started to exeed the person's height and can lift them off the ground(Effectively turning their bosoms into beds) Moving is no longer possible without extreme aids such as cranes
#16Infinity breasts
Keys: infinity, infinity chest, infinity tits, infinity chested, infinity size breasts, infinity-chested, infinity breasts, infinity boobs
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Infinity breasts: Person can only watch as their bosom continue to grow, exceeding houses, small cities, mountains, etc.
#17Buttocks
Keys: ass-cheeks, bottom, buns, ass, cheeks, backside, buttocks, butt, bum, rear
Always on · Selective · Before character · Order 10 · 100%
Entry settings
The buttocks (buttock) are two rounded portions of the exterior anatomy of most mammals, located on the posterior of the pelvic region. In humans, the buttocks are located between the lower back and the perineum. They are composed of a layer of exterior skin and underlying subcutaneous fat superimposed on a left and right gluteus maximus and gluteus medius muscles. The two gluteus maximus muscles are the largest muscles in the human body. They are responsible for movements such as straightening the body into the upright (standing) posture when it is bent at the waist; maintaining the body in the upright posture by keeping the hip joints extended; and propelling the body forward via further leg (hip) extension when walking or running. The back of a hip that forms one of the fleshy parts on which a person sits. Females tend to have proportionally wider and thicker buttocks due to higher subcutaneous fat and proportionally wider hips. In humans they also have a role in propelling the body in a forward motion and aiding bowel movement.

Butts come in different sizes and shapes such as: Flat ass, small ass, average ass, large ass, round ass, big ass, mound ass, huge ass, cushions ass, massive ass, mammith ass, ultra ass, overboard ass, omega ass, unbelievable ass, tiny ass, muscular ass, fat ass, bony ass, lumpy ass, curvy ass, cute ass, hard ass, tigh ass.
#18Flat ass
Keys: flat butt, flat cheeks, flat buttocks, flat ass, flat assed, flat-assed
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Flat ass: A size that is common among men and children. Contrary to the name, there's actually some cushion in the cheeks.
#19Small ass
Keys: small assed, small buttocks, small cheeks, small butt, small ass, small-assed
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Small ass: The beginning stages of growth in which more cushions is added to the cheeks and the hips begin to widen.
#20Average ass
Keys: average assed, average buttocks, average-assed, average ass, average butt, average cheeks
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Average ass: At this stage, the difference between men and women become noticiable due to the width of the hips. The amount of cushion in the cheeks makes them firm and tempts other to "cop a feel".
#21Large ass
Keys: large assed, large cheeks, large-assed, large butt, large buttocks, large ass
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Large ass: This is the point where heads start to turn and keeps the attention of those passing by. Some of the fat from the cheeks begins to migrate to the thighs.
#22Round ass
Keys: round ass, round buttocks, round-assed, round cheeks, round assed, round butt
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Round ass: The peak of natural growth, these cheeks stick out far enough for noticeable jiggling to occur. Also the size most people associate with an "hourglass" figure.
#23Big ass
Keys: big cheeks, big buttocks, big butt, big ass, big assed, big-assed
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Big ass: At this size, one can really grab a handful of flesh. The cheeks jiggle and sway with every movement and the butt itself lowers into the thigh area.
#24Mound ass
Keys: mound buttocks, mound assed, mound butt, mounds, mound cheeks, mound-assed, mound ass
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Mound ass or Mounds: This size has enough flesh for a hand to sink deep into each cheeks. A significant amount of the thighs stretch out to accomodate the size.
#25Huge ass
Keys: huge buttocks, huge-assed, huge butt, huge cheeks, huge assed, huge ass
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Huge ass: At a neutral standing position, this size is where the crest of the butt begins to rise. The thighs can no longer keep up with the cheeks in length and width.
#26Cushion ass
Keys: cushion butt, cushion ass, cushions cheeks, cushions buttocks, cushion-assed, cushion assed
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Cushions ass: Here, there's so much flesh that one can comfortably sit on their rear as a make-shift seat. The cheeks are large enough to completely smother someone's face in between.
#27Massive ass
Keys: massive buttocks, massive cheeks, massive assed, massive-assed, massive ass, massive butt
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Massive ass: At this point, the cheeks have started to fuse with the thighs. There's enough space to balance objects on top at this size.
#28Mammoth ass
Keys: mammoth-assed, mammoth buttocks, mammoth ass, mammoth butt, mammoth assed, mammoth cheeks
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Mammoth ass: At this stage, the cheeks have to ovetake the calves. It's a bit difficult to tell the difference between thighs and the butt at this point.
#29Ultra ass
Keys: ultra-assed, ultra ass, ultra buttocks, ultra cheeks, ultra assed, ultra butt
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Ultra ass: These sofa size butt cheeks are large enough for a few people to rest on. It's also the last size where one could walk naturaly.
#30Overboard ass
Keys: overboard assed, overboard butt, overboard buttocks, overboard ass, overboard cheeks, overboard-assed
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Overboard ass: A size where walking become very difficult as one would have to drag their butt cheeks which now reach the floor
#31Omega ass
Keys: omega-assed, omega assed, omega cheeks, omega butt, omega buttocks, omega ass
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Omega ass: The cheeks now start to grow above and beyond one's height. Movement is impossible at this stage.
#32Unbelievable ass
Keys: unbelievable ass, unbelievable cheeks, unbelievable assed, unbelievable buttocks, unbelievable-assed, unbelievable butt
Enabled · Selective · Before character · Order 10 · 100%
Entry settings
Unbelievable ass: The butt cheeks have now grown to the size of a house, cities, countries, etc.
#33Macromastia
Keys: macromastia
Always on · Selective · Before character · Order 10 · 100%
Entry settings
Breast hypertrophy or macromastia is an excessive and disproportionate development of breast tissue, which is usually associated with physical and psychological symptoms that alter the quality of life and can sometimes be extremely disabling.

Females with macrosmastia present some of these symptoms: considerable increase in the size and weight of the breasts, pain in the back, neck and shoulders, restrictions in mobility, and/or difficulties in physical activity.

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