Some more short stories I wrote at 4chan.org/d/. I've put tags before each story so you can skip the ones you don't like. Some of them will be written in the "greentext" format. Please leave a review on overflowingbra.com and let me know what you liked and didn't like!

Warning: These stories contain content of a mature nature featuring body transformation and expansion. If you are not allowed to read this or are offended by it, don't read it!

Story 1: I posted this in a "Schoolgirls Concerned About Their Breast Growth" thread. This is exaggerated from rumors I heard about a girl at my high school. 
Tags: Breast growth, large breasts, slow growth, hyper nipples, medicine, small height growth
>Be high school girl
>Problem with pituitary gland: only four feet tall
>Look like an 8-year old
>Doctor prescribes human growth hormone to get me up to normal
>Start taking it after sophomore year, 16yo
>Finally hit puberty
>Bones hurt
>Grow half an inch in a month
>Fucking finally
>Nipples start to chafe in shirt at same time
>They're a bit bigger and stick out
>About time I grew some tits
>Areola expands, fills most of chest
>Nipples stick out an inch
>What the hell?
>Breasts finally grow next month
>Nipples are freaky huge, but I've got tits!
>Height continues to grow at half an inch a month
>Tits grow at a cup a month
>Nipples grow about quarter inch a month
>Worry about that later
>September, start Junior year
>B-cup breasts
>Still the short girl, but I've got tits now
>January
>Problem
>Tits still growing
>No longer the short girl
>Now the short girl with huge tits
>4' 3", F-cup breasts
>Biggest in school, minus the fat chicks
>Areola still cover most of breasts
>Nipples are inch and a half long
>Running in gym is embarrassing, but so is changing in the locker room, where all the girls see my nipples
>Hear gossip going around
>Bitches think I'm a freak, others feel sorry for me
>Don't tell anyone my nips are getting super sensitive
>Senior year, 17yo
>Just passed 4'7", N-cup breasts
>Bigger than my head
>Nipples are three and a half inches long
>Super sensitive
>Feel good when I'm alone, but not when they rub my bra when I'm trying to get to class
>Shoulders ache, back aches
>Bras are expensive
>Get hit on by perverts constantly
>At least they're not pedos like the last batch of perverts
>Graduation, 18yo
>Finally 5"
>No longer legally a dwarf
>Get off HGH
>Feels good
>W-cup breasts
>Practically rest in my lap when I sit
>Nipples are six inches long now
>Can practically jack off with them they're so long and sensitive
>Have to pack them in my too-expensive bra carefully so they don't chafe or get me off while I'm walking around
>Hips and ass grew, too
>Almost two feet wide now
>Ass fighting my tits for supremacy
>Back hurts
>Shoulders hurt
>Nipples chafe
>Bump my breasts whenever I move my arms forward
>Have to squeeze them to use a keyboard
>Can't use a laptop because they cover the keyboard
>Hips bruised from hitting doorways if I don't walk exactly in the middle
>Horny assholes call me the shortstack
>So glad to graduate and get out of here


Story 2: This is from an "Inconvenient Hypersexuality" thread. This was based on a request for a story about a girl who's breasts grow to immobilize her, with a focus on her struggles and how she has to adjust.
Tags: Room-filling breasts, slow growth, natural growth, some pregnancy and lactation at the end
>Be a girl
>Have precocious puberty.
>Can't remember not having boobies.
>They start growing in kindergarten and just keep growing.
>Last time I run is sometime in elementary school. After that it's just too painful.
>Ask mommy why other girls don't grow boobies that bounce all over. She just cries and hugs me.
>J cup when I enter middle school.
>Have been wearing custom bras for years.
>Can't run in gym. Get permission to do special exercises for my back every day.
>Back and shoulders hurt every day.
>Boys leer at me. Some of them grab my nipples.
>Girls call me a slut and laugh at me.
>Spend most of my lunches in the library.
>Have to spend extra time in the morning drying my boobs or I get chafing.
>Pass out of the alphabet by the time I enter high school.
>Breasts rest in my lap when I sit now, which gives my shoulders a rest.
>Breasts hit new growth spurt in high school.
>Halfway through Freshman year I have to squeeze them into my desks.
>In Sophomore year they take up half my desk and are a pain to work around.
>In Junior year they don't even fit in my desk anymore. Not a problem since I take a wheelchair everywhere now.
>Can't carry my own breasts anymore.
>At least no one calls me a slut anymore. They just pity me.
>Can't even reach my nipples without squeezing into my breasts anymore.
>Can't fit behind a steering wheel so I can't get my driver's license.
>Have to do Senior year from home.
>Each breast is bigger than me, now.
>That's fine, I was always alone.
>Insist on walking graduation.
>Get a rolling cart to put my boobs on since they reach the floor now.
>Everyone calls me brave. I just feel like boobs with a girl attached.
>Breasts continue to grow.
>Biggest worry is bed sores.
>Get a special mattress that changes pressure at various patches to reduce pressure on skin.
>Still have to swap out sheets.
>That involves rolling them forward until I stand on my head, then a member of my family rolls up the sheet until they reach my breasts and places another sheet that is half rolled up in its place. Then they roll me back, pull out the old sheet and unroll the new sheet the rest of the way.
>Sometimes they put straps underneath my breasts so they can lift them with a custom cart and lower me into a pool so I can float around.
>Once a day they put a treadmill under me so I can walk. Have to keep my fitness up, even if I can't walk anywhere.
>Sleep on top of my boobs. Have to put sheets between me and my boobs or else I get sweaty in the night.
>Get online degree. Spend my days doing remote work.
>Breasts finally stop growing.
>Breasts are now taller than me.
>Takes multiple siblings to shift my breasts around.
>Get lonely.
>Try online dating.
>Have to weed through a ton of perverted jerks.
>Get lucky: find a guy who's perverted enough to like my body, but kind enough to like me.
>Get married.
>Have custom house built. Has extra-wide hallways and tracks running down the ceilings so we can hoist my breasts up and I can have the illusion of freedom.
>Get pregnant.
>Bitch ass breasts grow AGAIN.
>Husband has to help with pumping me. I haven't seen or felt my nipples in years.
>Have baby.
>Bottle feed her.
>Make enough milk to feed a nursery.
>Make extra money selling it.
>Hire a nanny to take care of kid.
>Sometimes kid won't sleep unless she's nestled between my boobs. Whatever keeps her quiet.
>Have some more kids.
>Asshole tits grow each time. Have to gorge myself with food just to keep up with milk production.
>Kids are angels. Husband is a saint with them.
>Realize I'm actually content in my life.

Story 3: This is from a "Monkey's Paw" thread. The prompt was "I wish to be this woman [picture of a woman with huge breasts and belly], with big milky tits and an even bigger belly. (Pregnancy is optional.)" 
Tags: Huge breasts, Slow growth, lactation, stuffing, belly inflation

After the birth of your first child, your body took to lactation like a champ. Your breasts made enough milk for your new baby and then some. They never seemed to stop, and only increased as time went by. It started with a few cups a day, which is normal. Then a few pints, then quarts, and finally gallons. You gained over a cup a week, on average. You stopped buying bras because they were too expensive. Your doctor offered to give you something to reduce the lactation, but you refused because it secretly felt good. You'd always wanted larger breasts, and yours were more more sensitive than most. Milking felt GOOD. As your breasts grew, they got even more sensitive, until pumping was orgasmic.

Unfortunately, creating so much milk requires a lot of calories. First you lost the curves around your hips that your husband loved, then your arms and legs got so skinny you looked anorexic, except for your prodigious chest. You almost went to the hospital and your husband begged you to take the lactation inhibitors. Your baby was on solid food by this point, but you loved lactating too much, and selling it was bringing in 30% of your household income.

You realized the solution was to eat more. And more. And more. It was hard at first. You are as much as you could but could barely get in 10,000 calories a day at first. That was 4 times as much as you were used to, but your breast milk was pulling out even more. Every day you gorged yourself on cake and ice cream, bread and peanut butter, anything full of calories that your body turned into sweet, sweet milk. You stretched out your stomach until you were eating more than ssbbw feedees ate in a week. After a full meal, your stomach stuck out to your knees and was even bigger than when you were pregnant. Finally you were keeping up with your milk production, which continued to increase. Your curves came back and you were healthy. You were eating 100,000 calories a day, but your milk kept you from getting fat. You were making enough money just from your milk that your husband could quit his job to take care of your feelings and help raise your daughter. Each day was inflating your stomach with food and orgasmic milking.


Story 4: From the same "Monkey's Paw Thread." The prompt was "I wish to be transformed into this weird foxgirl [Picture is of Reimu from Touhou half buried in the ground with fox legs, eight milky breasts, and a swollen belly while Marisa looks on and laughs]."
Tags: Nanobots/gene splicing, multiple breasts, large breasts, slow growth, furry, pregnancy, slight bestiality (kinda)

You always thought foxes were the cutest and wanted to be like one. You couldn't wait until your 21st birthday when you could order the gene splicing for yourself and get your fox ears and tail. You even had a pet fox, engineered to be tame and docile.

On the day you went into the splicing clinic, your friend Rebecca was on the phone with you, telling you the juiciest gossip. Of course you wanted the splicing, but you were on the phone, couldn't the clerk see that? She kept interrupting your conversation to ask dumb questions like "which splicing package would you like?" and "can you confirm the details?" You finally snapped at her and said "Just make me a fox girl you dumb bitch. Oh, and give me bigger boobs."

The clerk smiled and said, "of course, miss. Right away." She put the information into her tablet and turned it around to you to confirm. You saw "Foxgirl Package 3B" and "Breast Enlargement Package 5." You ignored the details because that was HER job, after all. You checked the consent boxes, signed the tablet to confirm your selection, then paid and got your nanobot injection. You were so excited, finally you'd have the cute fox ears and tail you wanted.

You woke up the next morning with an ache in your ears and tailbone, and your boobs tingled, as expected. What you weren't expecting was the soreness in the rest of your bones, particularly your face, hands, and feet. Nor were you expecting to feel itchy all over. You looked in the mirror. Was your face pointier than before? When you got in the shower, you saw some moles running down your belly that you'd never noticed before. After your shower, you picked up your phone to google "moles in a line." You fumbled your phone picking it up, and it felt strange in your hand. Were your fingers shorter than before? You decided to ignore that. When you brushed your teeth, you noticed your canines were longer. You figured that was part of the foxgirl package.

The next morning showed more progress. Your breasts had grown to a D-cup, which was nice. Your ears were also making their way to the top of your head and your tail was growing out. However, something definitely went wrong with the splicing. You had orange hairs sprouting all over your body. The moles down your belly were unmistakably six new nipples. Your fingers were shorter, your legs were shorter, but your feet were longer. Your face was definitely growing longer as well. You called up the splicing shop. After waiting an hour, you finally got on the phone with someone to yell at. You gave her your information and purchase number. After reviewing your order, she said that you were getting FoxGirl Packaghe 3B. FoxGirl package 3 made your limbs and face more foxy than human, and the B meant you would grow the extra breasts. You were outraged and demanded a refund or you would sue them. She replied that you had signed the consent form and confirmed that you had ordered what you wanted. You demanded they reverse it. She told you that federal regulations on gene splicing limited changes this extreme to once every three months. Further arguing and yelling got you nowhere.

So that was it. You would have to endure this transformation and then wait three months to get it reversed.

Within a week, your changes were complete. Your feet were now fox paws that forced you to walk digitigrade instead of plantigrade. Your hands were not quite fox paws, but were smaller and less dexterous than they used to be and your nails had become claws. You weren't quite a quadruped, you could stand and walk on your back feet, it was like walking on your tiptoes, and walking on all fours was equally as comfortable. Your face looked like Maid Marian's from the Robin Hood cartoon. At least it matched your ears, which were cute, and your tail was nice and bushy. You were covered with a lair of luxurious fur, which was quite nice, once you got used to it. It was bright orange on your back and sides, with snowy white on your belly and chin. Your legs and hands were a glossy black. While you had a fox mouth, you could still talk as well as before the change.

You had to admit: while the change wasn't what you ordered, the clinic did good work. You might even be able to get used to it, if it weren't for the damn tits. Apparently Breast Enlargement package 5 was usually reserved for strippers and porn stars. Each breast was the size of your head, and since you had the B option from the FoxGirl package, you had eight of them. They all crowded down and filled your entire fluffy white torso. They looked ridiculous on you. And they were so heavy, too. Each one weighed 10 pounds! While you could walk on your hind legs, 80 lbs of weight threw your balance off, even with your tail acting as a counterbalance. They pulled on your back something fierce, too. It was just easier to walk on all fours and pop up when you needed to use your hands. You were definitely getting rid of them when the three months was up.

There was no way you could go outside like this. You had enough money in savings you could stay in for three months. You'd just have to be anti-social for a bit. No problem, you'd done this during the pandemic.

You hadn't had to go into heat during the pandemic, though. A few weeks into your self-imposed isolation, you suddenly became unbearably horny. So horny that you thought about calling up one of your FWBs and revealing what you'd done to yourself just to get some relief. Your pet fox, Dandelion got really interested in you at this time. Apparently, vixens in heat release all kinds of pheromones. You had to lock him outside of your bedroom while you slept, but he whined and scratched at the door. The next few days were agony and you spent most of it with a dildo up your pussy. Fox pussy. Fussy. But you made it through.

Unfortunately, the next month your heat came back with a vengeance. You couldn't think straight. Your fox wanted you in ways you didn't think were appropriate. But you started to wonder. Was it really bestiality if you were already half fox? He was responding to your pheromones, so you must have been pretty close, genetically. The real problem with bestiality was that you couldn't get consent from the animal. But Dandelion definitely consented, he wanted it bad. You were desperate, he was desperate. You couldn't believe you were doing this, but you opened the door and let him in. He ran around your ankles, yipping. You put down some towels and got on all fours. He mounted you and started pumping. Sweet relief flooded your mind when he finished, even if you felt dirty. That lasted for a few hours until you got horny again. You spent the rest of your heat like this.

Finally your three months was up and you could go to the gene clinic to have your FoxGirl package partially reduced and your extra boobs eliminated. They let you come in the back door since you were so embarrassed about your new form. Since it was a reversal, they had to do a lot more tests. When the doctor finally came into the examination room, he told you that they couldn't perform the reversal because federal regulations prevented them from splicing women who were pregnant.

Pregnant. The word hit you like a brick. You were pregnant with Dandelion's babies. Kits. Apparently you and he were close enough in species that he could impregnate you. You went to your doctor and had more tests done. The babies were healthy, all six of them. Genetic testing showed that they were like you: foxlike, but with human minds. You breathed a sigh of relief that they would be intelligent, at least.

But what would you do? You were all alone. You didn't want to raise six kids by yourself.

Then you realized, you weren't alone; you had Dandelion. He was only a fox, but just as humans could become more fox-like, foxes could become more human-like. You took the money you were going to use for your reversal and used it on him. You took out a loan and used it for knowledge implanting in him so you wouldn't have to teach him how to be human from the ground up. You sprung for the high-school graduate package so he could get a job and help out. When he was done, he looked like the Robin Hood to your Maid Marian. He still had the affection programmed into him as a domestic fox, but where he loved you as a pet to a master before now he could love you as one partner to another.

You worked online as your pregnancy progressed, and occasionally modelled online under the name FoxyMamaXOXO. He took some online classes and got certifications so he could help out with money.

After nine months, you traded your huge baby bump for six beautiful fox-human hybrid babies. Your breasts had grown to the size of volleyballs. They were so heavy you walked on all fours almost exclusively.

You had become a weird foxgirl, but you had a loving husband and beautiful children. You were content.


Story 5: from an "Overfull Balls" thread. This doesn't have any breast expansion, but a character does have huge boobs. 
Tags: futanari, hyper pregnancy, pregnant futa, huge boobs, balls expansion, cumflation
>Katie sat at home, waiting for her husband to get back from work. That wasn't unusual. She loved him and missed him. But that wasn't entirely it. A casual observer might have thought that she needed help because she was pregnant with octuplets. Most normal women would have needed help even to move in that situation.
>Katie wasn't most women. She had bigger muscles than most men did, and could carry her eight months with eight babies full belly with, well not with ease, but with less difficulty than you'd think. Even with the basketball sized breasts that hung down on either side of it.
>No, Katies problem lay underneath her belly. It was her dick, in fact. It was 12" long and had been stiff for almost three hours now. 'Only one more hour before I need to call a doctor, according to those commercials,' she thought wryly.
>Katie wasn't saving herself out of loyalty to her husband. He understood that as a futanari, she had several times his sex drive, and didn't mind when she pleasured herself at home between stints of housework. It's not like she ever used herself up; she always had plenty left for him when he got home.
>No, Katie was frustrated because her belly was so big, and hung down so low, that she couldn't masturbate with her cock anymore. Her arms just weren't long enough.
>Even worse, her pregnancy hormones made her even more horny than usual. It didn't help that one of her kids would occasionally kick her in the prostate, which almost always gave her a semi if she wasn't already hard.
>Tom, her husband, understood this, too. He had fixed an onahole for her next to the bathtub that she could use any time she wanted.
>Unfortunately, she had broken it earlier today, shortly after her husband had left.
>And so her sexual frustration grew and grew. Sure, she could reach behind and use her pussy to masturbate, but her cock and pussy orgasmed differently and she couldn't get one off with the other.
>It had been almost eight hours since she had cum, and her body knew it.
>Unfortunately, a futa's body doesn't stop making sperm, especially when they are aroused. And Katie had been aroused all day.
>Her testicles, which were normally the size of chicken eggs, started to swell.
>Even worse, testicle expansion was one of her fetishes, which turned her on even more.
>Her balls were now swollen to the size of basketballs, and each was hot to the touch and tender.
>She couldn't find a comfortable place to sit with them and her belly competing for real estate.
>She was so desperate she'd tried fucking the couch cushions, but to no avail.
>She ended up lying down on the couch with an ice pack on her scrotum, not that it did any good.
>Finally she heard his key in the front lock.
>"Katie?"
>"Tommy! I'm in here. Come quickly!"
>Tom came in and saw her state. He had never seen her this big! "What happened?"
>"The onahole broke!" she wailed.
>He ran his fingers through her soaked hair and kissed her. "You poor dear, you must be in so much pain! Let me fix that for you."
>Tom removed his jacket and removed his tie. "Hawk tuah!" he spat on her erect dick. Then he took its head in his mouth and valiantly started working it.
>Katie started moaning.
>He started pumping up and down. Years of practice had given him the ability to deepthroat like a champ.
>Fortunately, she didn't need much encouragement. When he felt her start to shudder, he took a deep breath and took her to the hilt, burying his face in between her gravid belly and her overstuffed balls.
>Katie yelled as her long-overdue orgasm hit her like a truck. She bucked and kicked, but Tom grabbed her muscular thighs and held on as her seed shot straight into his stomach.
>She orgasmed for a minute straight, but that barely made a dent in her balls.
>When he felt her start to let up, Tom came up for air. After a few gasps, he started working her again.
>Fortunately, futa don't have refractory periods.
>It wasn't long before she came again. And again. And again.
>Each time he swallowed it. He really didn't want to clean that much cum off the carpet.
>After an hour of diligent work, Tom got her back to normal size.
>Katie was in a daze.
>Her dick was finally limp.
>Her balls were now back to egg sized and dangled around her knees in her stretched out scrotum.
>Tom sat back to catch his breath. He had drunk so much semen that his belly had burst the buttons on his shirt. It rested on his legs and sloshed around with over three gallons of cum. He had to constantly swallow to keep from throwing it up.
>Between swallows he said "Let's...make sure...this...never...happens...again."
>Katie could only nod.
>He didn't let his stomach full of cum stop him from repairing her onahole, and setting up a backup, just in case.


Story 6: This is from a "Women upgrading men" thread. No breast expansion, but I think it's hot
Tags: Big breasts, magic, male penis growth, instant, male muscle growth
>Friends tell me not to date the witch
>Do it anyway because big titty goth GF
>Date goes well, she is flirty and teases me
>Invites me back to her place
>Hell yes
>Cabin in the woods
>Am I gonna die here?
>Makes me some herbal tea, smells funny but drink it because horny
>Everything goes blurry, dick becomes hard
>She pulls my pants off and starts licking my dick
>Erect as Isengard
>She gets on top and puts me in her
>She's unbelievably loose at first, but becomes tighter as the sex goes on
>Never had to cum so hard in my life
>Explode in her, she cums at the same time
>Everything goes white, pass out
>Wake up on her couch, still hard
>Isengard has become Barad-dur
>Dick is like a baseball bat, balls are like ostrich eggs
>"Sorry about that, anon, I'm a bit of a size queen"
>Stand up, I'm taller now
>Clothes burst from my Conan the Barbarian muscles
>"What the hell!?" I yell
>Goth GF acts coy
>"You look angry, what are you going to do about it, anon?"
>Grab her by the arms
>She shrieks in excitement
>Throw her on the bed
>Thrust into her
>She's trash talking me the whole time
>I get rougher
>Pound like I'm digging for oil
>See my rod stick out of her stomach with each thrust
>She moans like a banshee
>Ahegao face
>Still angry
>Pick her up and flip her over
>Hold her in the midsection with my gorilla hands
>Slap her against my dick like a human onahole
>She cries out with each thrust like an opera singer on a bumpy road
>Burst into her again like a geyser
>She looks six months pregnant when I'm done
>Throw her on the bed
>She just lies there with cum dripping out her snatch
>"That was amazing, anon"
>"You should do that some more"
>Calm down, finally
>Look at my body
>It's not bad
>Now strongest guy at school
>Join football team
>Get scholarship
>Go pro
>GF knows I can't cheat on her on the road because no one else could fit me
>She's all kinds of kinky though
>Worth it