On a holiday day, you can see the figures of parents and children walking side-by-side.

The mother in this story is Miyuki ... She is short, barely reaching 150 cm (4' 11"). Her physic is proportional to that, giving her a very youthful appearance. I am surprised that this is a 30-year-old single mother.

The daughter is Luna ... at 11 years of age she is over 160 cm (5' 3") tall, and her body is very mature for her age.  Especially her chest, which greatly pushes up her clothes. She is an elementary school student with an F cup. T the opposite sense to the mother, who appears to have nothing there.

Because their appearances, they are often mistaken as sisters when they walk together this way. However usually Luna has a school bag and Miyuki has her company bag and wears a suit. But for today the two of them look like sisters because they are private clothes.  It may be almost impossible to measure and know the true relationship between the two.

Luna: "Hey, I would like to go look at underwear today, alright?"

Miyuki: "Underwear...You need a new bra again?"

Luna: "Yeah, I switched to the E-Cup bra half a year ago, but it's getting tight recently. I think I need to go up to an F-Cup bra so it doesn't hurt my chest ..."

Miyuki: "I guess it can't be helped, if that's the case.  You're having growth spurts, so it's not good for your body if you're in the wrong size bra ..."

For most parent's it's a happy thing to see their daughter growing healthy, but to Miyuki, it was complicated. While her breasts are perky, they are small and stopped growing, while her daughter's, can practically be seen growing day by day. When she turned her eyes sideways as she walked next to Luna, she could only see breasts ... that I could call it a big-sized busty, and she was jealous to see the melon sized orbs swaying. Looking at them, it was inevitable Miyuki would sigh

The two came to a relatively famous women's lingerie store. In order to meet the needs of Luna, Miyuki was taking her daughter there because the store in the neighborhood might not have the right size.

Women's underwear lined all the aisles in the store. It was Miyukis first time at the store, so she did not know what one to look for and decided to call a clerk to help.

Miyuki: "Excuse me, I'm sorry! I came to buy my daughter some bras, could you please help us?"

Clerk: "Yes! What kin bra are you looking for?"

The clerk, who was just organizing some some things, turned around while answering. Her eyes landing on the pair.

Clerk: "Oh, is it time for her first bra? Please follow me..."

Apparently, when the store clerk looked back to them, she mistook Luna for the mother and Miyui for the daughter and chose the perfect training bra for Miyuki.

Miyuki: "Umm ... that ... ..."

Clerk: " What about this one? It's a pretty pink design just perfect for you!"

Miyuki tries to talk, but cannot explain well because of the exuberance of the clerk.


Luna: "Oh,  today I came to pick my bra! I'm not mommy!"

Then Luna explained the situation to rescue her mom from the clerk.

Clerk: "Oh, this was rude! I'm sorry! I'm just a young mother and I just got into it a bit too much!"

Having said that, the clerk quickly turned around and started to go deeper into the store taking Luna along. Miyuki sat on the bench installed in the store and watched the situation. Her face was red with embarrassment over what the clerk had said earlier.

Miyuki: "I wonder if I'm really that childish up there? "

She looked at the mirror in front of her and thought "maybe I do look a bit like an elementary schooler" and sighed.

Luna: "Mama ~! Please wait! The clerk picked out some cute ones in my size I want to show you!"

Miyuki waited for a while and Luna was happy to show off her bra. Looking at the size, it was an F cup as originally expected.

Luna: "What the clerk said earlier was interesting, wasn't it?"

Miyuki: "What? Are you saying that I'm childish?"
Miyuki was in a plump on bad mood.

Luna: "No, I wonder if I'm an adult already..."

As she said that, Luna's face lit up like she had an idea. Glancing at Luna's right hand casually, Miyuki noticed a ring sparkling in gold was on the ring finger.

Luna: "Don't you think it would be interesting if you were exactly as the store clerk said earlier?"

Miyuki feels light headed for a moment and she sees Luna grinning innocently like a playful kid.
====
Clerk: "Oh, are you here for her first bra?"

The voice of the store clerk from earlier cut through Miyuki's dizziness like an arrow. She wondered if she should complain about harassment, for this woman to say that again.

Luna: "Yes! You could you choose a bra that fits my little girl?"

Then Miyuki suddenly felt uncomfortable. Even though she was just sitting on a bench, she found herself back where she was when she first asked the clerk for help.


When she saw Luna next to her, she let out a surprised gasp.  Luna was bigger than usual and looked like an adult. Originally the height difference between Miyuki and Luna was 10cm, but now it was wider. Luna's tits were now much larger than the "F cup" size bra that was measured just minutes before. She looked as if two watermelons hung from her chest.

Miyuki thought: "Huh! Luna is doing something selfish and odd! And if it's a bra, I'm already wearing one ...what? No!?"

While analyzing the strange situation, Miyuki remembered the previous conversation, but ...

Luna: "You aren't wearing a bra Miyuki-chan..you're only 10 years old. Don't be ashamed because it's your first bra!"

Miyuki: "I wonder if you're kidding anymore ..."

So Miyuki, lost for words, focused more on the appearance of her and Luna.
Apart from the sudden freakish growth of Luna, Miyuki was somehow getting smaller. Her original 150cm was about 140cm tall now, and heading for 130cm. On the other hand, Luna was 160 cm, but became tall like a model; 180 cm or more. Even if you don't like the difference in height near 50 cm, the two people will line up with your eyes.

Luna: "Please don't hesitate to go with the clerk!"

Luna was pushing Miyuki's back, leaving the clerk to pick Miyuki's bra.

Luna: " Well then, I will also choose a bra ~ ♪"

======
And 30 minutes later

Clerk: "That's one AAA cup pink training bra, and your mother is the L cup sexy red bra! Thank you for your purchase!"

The two left the shop of the clerk with the loud voice. Miyuki looked tired, but Luna was grinning happily

Miyuki: "... and what does this mean?"

When they were finally alone, Miyuki asked Luna what had happened to change their bodies so much.

Luna: "Ah, my mom, I had a sharp idea based on how people see us! 'How about I change my body and your body to match their perception?' With this, I can be the mother no matter where we are and Mom, who looks like a daughter, can be the daughter? Isn't it interesting ~ ♪ "


Miyuki: "'Isn't it interesting ~ ♪'?! What? I want to know how you are doing something like this! And no matter how you did it, change us back soon!"

Luna: "Yaday ~! It's a Secret ♪ ♪  I think I'll still play like this the rest of the day ♪"

Having said that, Luna grabbed Miyuki's hand and walked out.

Miyuki: "H-hey! "

Miyuki's "child" strength could not shake the hand of "adult" Luna, and Miyuki had no choice but to follow.

===========

Luna: "Aha, I've been looking for this kind of clothes-♪"

Miyuki: "Ya ... stop! Such clothes ... ..."

The pair had gone to a children's clothes shop. Miyuki was in the midst of being forced into kid's clothes by Luna in the changing room. There were a lot of frilly pink clothes.


Luna: "It's cute enough, but doesn't it feel like it's not for a 10-year-old mom, but for a little child?"

Miyuki: "If you think so, don't make me wear clothes like this!

Luna: "Ah! Wait a minute !! I'll make it OK ♪"

Luna says and held her right hand in front Miyuki. The ring became wrapped in dazzling light ...

Miyuki: "Eh?! I'm getting smaller again!"

Luna: "This time I tried to rejuvenate you even more than just a little bit ago.  'Let's make mom 5 years old! Here!' You can wearing these frilly clothes without a sense of incongruity!"

Miyuki was stunned to see herself in the mirror. Pink fluffy clothes ... She even had costume cat ears on her head. It was the type of thing only small children, without any maturity, would wear.


Luna: "Ah, yeah, I became an L cup when I became an adult-♪ How is it? I don't have to bother with new bras if I grow up this much. You won't be able to make cleavage yourself, but you see, I've got a very large valley!"


Luna lightly pulls her top down some to expose more of her breasts as she puts her hand on Miyuki's chest as if you compare with herself ...



Luna: "In addition to that, the mommy's tits are already completely pettanko- (Flat)! From the beginning you just had little bumps, but with this, you can't even say you have boobs-! "

Miyuki was A cup before, and while she was jealous of her daughter's F-cups, she had never been really dissatisfied. However, adult Luna was now an L cup. Miyuki, who became 5 years old is a perfect plane that can not be called AAA. It was too embarrassing and miserable to compare them so brazenly. Miyuki's face became redder than she had experienced in her life, and tears floated in her eyes.

Miyuki: "Wow ... This has to be a dream! A nightmare!"

Miyuki says, her cheeks burning fiercly.

Miyuki: "It's gotta be a dream! Such unrealistic things are happening ..."


Because she was trying to think that it was a "bad dream" up until now, Miyuki managed to keep her mind together. She thought that she would not like to show her fear with her daughter watching.  It is a fact that she did not want to admit that it is a reality to herself as well.  However, because she faced such an unbearable situation, Miyuki finally admitted that "I would not wake up from a dream."

Luna: "It's not like being a mama is an evasion of reality!...Yes, I want to be a good mama to Miyuki-chan -so then let's join hands and come back together-♪"

Then, she dared to say that she would embarrass Miyuki and took Miyuki's hand.

Miyuki: "Oh! This embarrassing shit! I don't think I can..."

You aren't my parent!... Miyuki tried to say, but couldn't work up the words.
She thought that she shouldn't say such a thing to her daughter. Being a "parent and child" was a fact. Well, except now, no one really thinks that Miyuki is a mother and Luna is a daughter because Luna looks like a mother and Miyuki looks completely like the daughter.

Luna: "If it's embarrassing to hold hands, it's okay to hug me."


Miyuki: "...It's fine!"

She decided not to argue. Since it was embarrassing to just hold hands and walk in this form, it was unlikely that Miyuki would be able to endure being carried by her daughter in public. The only option was to hold Luna's hand reluctantly while her face stayed red.

End Pt 1
==================
Pt 2 On the way home from the store.

Luna was upbeat and hears a pleasant song, but Miyuki had a very tired look.

Miyuki: "Hmm ... I don't want anyone to see me  like this."

This kind of public place... Miyuki was in a very young body and dressed in pink, frilly little girl's clothes. She was holding hands and walking with Luna like "parent and child". However, the reality was very serious and she was worried about how easy it would be to meet acquaintances like this.


Maki: "Ah, Luna-sempai! You on your way home now?"

It was a coworker from the same office as Miyuki, Maki who was Miyuki junior. 25-year-old Maki sees 30-year-old Miyuki like her big sister. Sometimes she came to  Miyuki's house, even on holidays, so she was acquainted with Luna...but why call her " Luna-sempai"?  Just because Luna looked more adult than before? Luna laughed to herself seeing her mother's confusion.

"Oh Maki-chan! It's great to run into you!"
Luna's voice sounds like she was older.


Maki: "Hey! I'm also on the way home from shopping! Ah, Miyuki-chan's clothes are cute today♪ Don't become older than 5, okay? Because such cute clothes can't be worn if you grow up~ ♪ "

Miyuki turned red again with the reminder of her situation.

Luna: "I've just bought these clothes for 'Miyuki-chan' while we were shopping. Well, I'm a bit tired, you want to talk in the park over there?"

Maki: "Yeah sure! I need to go to bathroom a little before that. Please wait on the bench there!"

When Maki was gone, Miyuki asked Luna to explain this situation.

Miyuki: "Hey, what does Makiki's reaction mean? What did you do?"

Luna: "Sorry, mama! The ring is keen-- I adjusted the social situation to our bodies. In other words, everyone thinks I'm the " Mother" and Mama is "My daughter". It also gave me Mama's position in the company, so Maki is now my junior instead of yours."

Miyuki: "Not only did you make my body younger, but changed what others think too?!"

Luna: "These changes are just what I think would be fun! In this way, I think I will change my mom's position again ♪ Eiga!"

Miyuki had a bad feeling of then began to shrink again. Her limbs shortened and weakened as she became too young to even stand up on her own. She become a baby of only a few weeks after birth.
As this happened, even her clothes changed, and the pink frilly clothes became pink infant clothes.

Miyuki: <<So little! Why'd you do that?! ! Don't regress me more than this! 》

Only Luna understood Miyuki thanks to the ring. If other people overheard, they would only hear a baby's moaning voice babbling wordlessly. Since Miyuki became only a few weeks old, naturally her mouth and voice wouldn't work like she wanted.


Luna "Ah, I just want to show you what will happen to your social position when your body changes!"

===========
Maki: "I've kept you waiting!

Maki returned and sat next to Luna, who was holding Miyuki on the bench.

Maki: "Miyuki-Chan is so cute! The heart is healed just looking at such a cute baby ~ ♪"

Miyuki: <<A baby! Even though you were saying "I am 5 years old" just a minute ago...So this is because the social situation really changed based on the physical changes? 》

Luna: "I'm sorry! But you see, if I make mom's body even younger, it will be socially recognized that I'm pregnant with you" Luna whispered to Miyuki so that Maki wouldn't hear.

Miyuki: <<That's not funny! Change me back soon!》

Maki: "Are you hungry, Miyuki-chan?"

It looked like Miyuki, who is mewling and making uncoordinated slap motions, is crying and complaining.
It is not unreasonable to think she was hungry since Miyuki's words weren't being transmitted to Maki.

Luna: "Oh, Miyuki-chan probably is hungry ~! Now, now just wait while mama gets her boob out- ♪"

So Luna got the right breast out of her clothes and pushed her nipple into Miyuki's mouth. Then her L-cup breasts increased yet another size. As a by-product for breastfeeding, her breasts were further expanded grew into M cups. Miyuki tried to resist but her baby body falls far short of adult Luna's power. Since Luna's M cup breast was so large, Miyuki couldn't even push it away with her hands, and so she could only accept the situation and begin to reluctantly drink Luna's breast milk.

Maki: "Ufu ... Miyuki-Chan looks like she's really enjoying mama's milk!"

Not knowing Miyuki's mind, Maki was relieved to see the happy sight of a mother feeding her daughter. Fortunately,  it was Maki alone, for men walking in the park would have been excited to see Luna breast feeding, with her massive M-cup tits exposed casually and without shame.
Miyuki was not only ashamed of being breast-fed by her daughter, but it from seen by her junior, Maki and anyone who might have passed by. If there was a meter that represents Miyuki's shame, it would be off the chart.

=======

Miyuki: <<This is too embarrassing!! Stop it right now! I could just crawl into a hole!》


Luna: "I didn't think I could hear such a thing from Mommy's mouth!! Well then I'll give you your wish - ♪ I'm sorry!"

Then the figure of Miyuki disappeared in a moment, and Luna's stomach greatly swelled.


Miyuki: <<Ooooh, what did you do now?>>

Luna: "Nothing. Relax! just think about something a bit fun!"


Since this was performed in a moment while Maki was looking away, Maki did not notice that Miyuki disappeared. Furthermore, her memory was replaced by social information "Luna is still pregnant." She didn't even feel uncomfortable.

Maki: " Luna-sempai, what'll you name the baby! Aren't you in the last month? Is the delivery date soon?"

Luna: "She'll be here in another 1-2 weeks! I've already decided to name her Miyuki isn't it a good name? What do you think?"

Maki: "I like it!"

Miyuki: <<Hey stop this!! Take me out! 》

Luna: "Ah ~ I feel her moving in my tummy ~ ♪ No ~! Miyuki Cha ~ N! You have to be safe and wait to be born properly ♪"




Maki called Miyuki's name while caressing Luna's big belly, thinking nothing was odd about her real senior being the baby in there.
===========

Luna was engrossed in conversation with Maki, without worrying about Miyuki who was fussing in her stomach.

Maki: "Oh yes, that store that I went to recently is pretty fashionable ...

Then Luna suddenly noticed, Maki had fallen deeply asleep, like you would be f you were tired in warm spring sunshine.

Luna: "It's bad to wake you up because you must be comfortable sleeping ... But it's time to do this again... Ah! Yeah!"

Then, Luna slapped her stomach.

Miyuki: <<Foo! ! ? ... What! What are you going to do to me now?》

According to her  reaction, apparently it was surprising Miyuki.

Luna: "Well, did you go to sleep mom? Is my stomach so comfortable? You can stay there for a long time then ~ ♪"

Miyuki: <<Don't say stupid things!》

Luna: "You should know better than to speak that way now that I'm your 'mother'.

With that said, Luna's belly that had swelled into late pregnancy started to become smaller and smaller.
9 months ・ ・ ・ 8 months ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・Oops.

Miyuki: <<No! ! ! My hands are... my feet are getting shorter!!!》

Miyuki tries to fight the change, but in the fetal body of the fifth month fetus, where the muscles are not fully developed, she was no longer able to move her hands and feet freely.

Luna: "Ahaha ... it's not over yet! Become even smaller!"


Miyuki's body shrank even more. 4 months... 3 months...and finally became the first stage of being a human being...a fertilized egg.  Moreover, it was exactly "the moment of fertilization", so she had returned to the true starting point of life.

Miyuki: <<"Uh ... I can't move... I lost all my hands, feet, face, body...everything!! What did you do!!》

Luna: "Sorry, you've become a fertilized egg, so you don't have no hands or legs yet! You're just a beautiful round egg!" (laughs)

=====

Miyuki: <<Damnit! Well! ! What are you going to do to fix this?!》

Luna: "What am I going to do? ... I wonder if this is going to be a challenge ♪ Think it's already over now? Because I think we can keep going ~ ♪ "

Miyuki: <<You must be kidding? ..... I am a fertilized egg now! If you rejuvenate any more ...>

Luna: "Hmm...If I regress you more than this...I think I'm going to like this ♪ "

A long tail springs out of Miyuki, and pulls slowly out of her. At last the sperm pops out of the egg, and Miyuki's is divided between the sperm and the egg.

Miyuki: <<Hey! What are you doing! ! 》

Apparently Miyuki's consciousness remained in the egg. The sperm that had been part of her was swimming around the Miyuki egg, but after a while, it swam away. Finally it went out of reach of Miyuki's senses.  Her view is so bad in the dim uterus that she can't really make out her surroundings, trapped in the body of an egg with a size of 0.1 mm. Being that small, even Luna's uterus felt like a vast space. Miyuki's heart filled with anxiety, because she thought it may be impossible to match up with the sperm that was the other half of her body again.

=====

Luna: "Ah !? Curious ..."


Miyuki: <<eh! ? What's ... no way ...What now....>


Luna: "Oh ... I lost the sperm half of your, I did not know where I went ... ... I'm sorry ..."


Miyuki: <HUH! ? ...........>>

Miyuki had completely stopped thinking from the shock. If Luna could not find that sperm, Miyuki would not be able to return to her original body, and will be stuck as an egg forever.


Luna: "Oh, that joke really overwhelmed you! It's in my womb, so it's obvious I can figure out where Mom's sperm and ova are. Undertand?"


Miyuki was not able to answer due to the shock and had no words to respond to Luna's bad joke.


Luna: "I was kidding! Don't be angry! Look! Mom's sperm! It's back!"


Miyuki's sperm comes back from nowhere with Luna's signal

Miyuki: << Haa!!!>>

The moment of fertilization was as if a world of darkness exploded to a world of full of light ... as if the heavens and earth turned over ... The moment when even very existence takes human form from an unstable egg. For Miyuki it felt like a big change.

Miyuki: <<I'm back whole ... I thought wouldn't happen... but still I'm just a fertilized egg ..."
======

Luna: "Oh, I enjoyed that a lot! I will finish it soon ..."

Miyuki: "Hmm...I'll finally be released... ...! ! 》

While she was relieved to finally get out of Luna's womb, Miyuki the fertilized egg began to slip up Luna's womb rather than going out.

Miyuki: "What's the meaning of this!? I'm not going to be born again! ? 》


Luna: "I don't say anything like that ♪- I thought-♪ 'I'll just regress you the last and just finish ♪ '"


Miyuki: <<EH! ? What does the just finish mean?? There's still something more to do!?>>

Luna:"Oh, it'll be fun to see ~ ♪"

In the meantime, Miyuki goes back to the uterus, ... and still does not stop as she slides into the fallopian tube ... at last, she arrived at Luna's ovaries. Still, the regression did not stop, and finally Miyuki began to sink into the ovary. Miyuki, unable to stretch or shout, was merely swallowed up by the ovary.

Luna: "Ufu ----- You didn't think that it would still enter the ovary as a fertilized egg, did you? It would be too difficult to manage your egg and sperm separately. It was hard enough to return the whole fertilized egg to the ovary as it is. With this, I can absorb my whole mom ~ ♪ "

=====

Miyuki incorporated into the ovaries passed through many eggs in it. They were all eggs made of Luna's ovaries, and lined up as if waiting for the order to be ovulated. Miyuki became smaller and smaller as she went back along the lines of eggs. When she reached the end the line, Miyuki had become smaller than even the most recently produced egg.

Luna: "Hey, Mom, you're smaller and younger than any egg made by my ovaries ~ ♪ What's it like being inferior to an egg that has not been fertilized yet?"

Miyuki: <<Such ... ... such a thing ... ...>>

Miyuki as supposed to be an unmistakable "human", though it had become the smallest unit of "human"- a "fertilized egg", but now it was lesser than just an egg. It seemed that no more regression was possible, yet Miyuki's rejuvenation still did not stop ...
=========
Miyuki: <<That's the last stage! That's it!>>

This was different from rejuvenating from the body of an adult to the body of a child. A fertilized egg is only one cell. There is a limit to changing it. It was forced into the ovaries by the magic of the ring, and it was smaller and younger than the other ova, but this seemed to be the limit.

Miyuki : <<No! ! ..... Stop it! ! ! ! ! ......>>
===========

The individual that was Miyuki was unable to maintain even the appearance of a fertilized egg anymore, and was absorbed as a particle of atoms into the ova-producing place at the deepest end of the ovary. All that was left was a spiral-like chain of chemicals ... the only presence of Miyuki left: the Miyuki gene.
However, this also eventually became a particle of atoms as it integrated into Luna's DNA.

And by absorbing all of Miyuki's existence, Luna made her own the memories and experiences that Miyuki has accumulated over 30 years. In other words, they had become a single human being that combined the knowledge and skills of two people. .

Luna: "I didn't even exist at first, but before I was born, I was part of Mama's genes, from where I was born and fertilized in Mama's stomach, and I was born in this world ...・ But now my mom gets in my stomach and rejuvenates... and dissolves in my genes... ... Now it's a totally opposite position ... No, I'm getting too excited to erase Mom's existence, aren't I?"

Luna's stomach was still a little bloated, and her womb, where Miyuki had been just recently felt a bit sore.

Luna: "Well, let's see what we can do to play this time ... ♪ ♪"