Slight changes

Finally it was complete, no one believed me when I told them what I was planning to make, but they will now.
I need to test it though and with it being Halloween then this could be just the chance I need, and I know who to use as a test subject.
All I need to make are a few changes.

There was cute and there was cute, and this was cute.  Considering that it was the right size for her, and she was well into her adulthood, it looked like something a baby would wear.  Yet Karen found herself unable to resist it, her first idea for a Halloween costume had been something a little on the raunchy side but now that she had seen this, she just had to get it.
The costume in question was a pair of overalls which were pink, yellow, white and a little touch of light blue in a few areas, the crotch had what appeared to be snap buttons, the kind of thing a baby or a toddler would have in case of a nappy change, the legs had little patches with smiley faces on them and were in various colours.
On the upper part there was a pocket on the front with a little angel on it and the words 'Always mummy's baby angel' and the straps were made to have a kind of youthful appearance.  And it was made for an adult.
"If you wear that then people will be pointing and laughing"  Karen's mum comments as she spots her eldest daughter looking at the costume.
"Don't care, that's what I'm going to wear.  I'll be a few minutes"  Karen entered the shop and came out a few minutes later with a large bag, while everyone else in the shop had been buying the usual kind of Halloween outfit, she had gone for something different from the norm and she felt proud of herself for doing something different from so many.
"Well don't expect me to put you in nappies while you're wearing that"  Stacy, Karen's mum, comments as they resume their shopping.
"As if I'll need nappies"  Karen replies.

They'll be home soon, mum's likely got me the costume I asked for since I made it quite clear what outfit I was wanting.  With this I'll make that outfit even better while my sister, well she'll be getting a new point of view.
I wonder if her clothes will fit me?  Guess I'll have to find out when the time comes.  This is going to be fun.

That night after returning from shopping, Karen has gotten into her costume and is admiring herself in the mirror.  She actually wondered if she should have gone for a nappy to add to the effect, as it was she looked sexy and cute, but a little flat in the crotch area, something which took away a little of the costume's look.
"Take away, oooh, about 29 years or there abouts and you would be my baby sister"  Karen's younger sister, Harriet, comments.
Harriet was also in her outfit, a Super Girl outfit.  She was at least twenty years younger than Karen due to their mum's decision to have another child when Karen hit puberty.  Harriet was also considered to be quite intelligent for her age, so intelligent that she liked to invent things.  However a lot of her inventions tended to fall apart due to inferior parts.
Many tended to mistake her for an adult when it came to her pattern of thought, she didn't behave like a child very often and even when she did it seemed like she was forcing herself to be like the child she was.
"By the time you're my age you'll still be my baby sister"  Karen replies.
"Maybe"  Harriet hops off the bed before Karen could ask why she said that.
"Freak"  Karen mutters.

Now all I have to do is active the settings and the best part is that only me and my sister will know the differences, and she won't be able to do a thing about it.
A little flick here, turn here and it's show time.

The night air was cold, the bite of winter was approaching.  Holding Harriet's hand, Karen approaches the first house.  
They had both set out to do some trick or treating minutes earlier and although Karen felt she was too old for such things, she felt it was her responsibility to make sure that her sister did something more childlike instead of being so serious so often.
Harriet didn't bother to complain about being held by the hand, she was oddly quiet and other than the small smile, which made Karen feel uneasy, she was otherwise quiet.
"What are you thinking about?"  Karen asks as they approach the first house.
"Nothing much, just how cute you must have looked in just a nappy and t-shirt when you were very young"  Harriet replies, her voice barely a whisper.
"Mum said I was adorable, you were as well"
"Ever wanted to be that adorable again?"
"No, I enjoyed my childhood, I don't have any regrets"
"Regrets, many have them and they consume.  Maybe you do have regrets deep inside but don't want to see them"
"Maybe.  Okay, do your thing"  Karen nods towards the first house and Harriet takes a deep breath, she looked uncomfortable about the whole thing.  Despite her clear discomfort however, she approaches the house and knocks on the door, the elderly resident, a woman who used to help Karen's mum care for Karen when Karen was a baby, opens the door and Harriet calls out:
"Trick or treat!"  The woman smiles and then Karen sees something unusual, the woman looked like she was glowing for an instant, and she rubs her eyes, closing them for a second.  When she opens them a young woman of about 19 years old was putting some sweets into Harriet's bag, Harriet looked happy, a rare thing to see since most of he time she rarely ever smiled.
"That's a great costume"  The woman comments.
"Thank you miss"  Harriet replies before returning to Karen.  "Got some jelly babies here, I know you like those, not fond of them myself.  Prefer the cola bottles"  Something felt off to Karen and she couldn't place it, the woman was well into her 60s, yet she wasn't.  A part of her was certain that the 19 year old who had been at the door had been 69 years old.  "You want them?"  Karen dismisses her thoughts and looks down to her 10 year old sister.
"Sure, thanks"  Another stray thought enters her mind, how old was she?  She was sure she was 31, she had moved in with her mum for a few weeks while her flat, which she owned, was undergoing repairs after a neighbour's boiler had leaked and damaged both flats.
Yet a part of her said she was 24.
"Next house?"  Harriet asks, shaking Karen out of her stray thoughts.
"Aye, let's get going"

Four houses down and each time Karen noted something felt off, not just with those who Harriet was trick or treating, but with herself and Harriet.  She was sure that with each house Harriet was getting gradually older and that she was getting younger but her thoughts felt muddled.
At 15 Karen felt a little embarrassed at going trick or treating with her sister, who was 13, but their mum felt that they needed to retain some of their innocence before they became adults.
"I'm not 15 though, I'm 31"  A stray thought says to Karen.
"Come on, next house!"  Harriet calls out.

Karen held tightly to her big sister's hand, it was dark and she was a little scared.
"Not so tight"  Harriet, her big sister at 16, remarks.  Karen, at 8 years old, loosened her grip a little.  A part of her felt that this was all wrong, she was the big sister, not Harriet.  "A few more houses and we'll go home, okay?"  Karen nods, she tries to think of something to say but she finds that she's feeling confused.  This was all wrong.

"Guess you aren't such a big girl then"  Harriet comments as Karen looks down at the wet patch appearing between her legs, her training pants were soaked through.
Harriet, at 24, gave her baby sister Karen, at 4 years old, a hug.
"It will be okay, we'll be home soon"  Karen squirms as the wetness increases.  She wanted to go home to mummy.

"What a cutie!"  The woman who had answered the door to the last house comments to Karen, who at 18 months old was enjoying the attention despite her damp nappy and feeling tired.
"Mum says that as well"  Harrient, at 31, comments.  After receiving the sweets for Karen, they make for home.  
As Karen babbles to herself, Harriet marvels at how well her invention had worked.  The changes had been awkward at first but after the first two times they had become a lot easier to adapt to.  And watching her sister become a baby again had been well worth becoming an adult and going through puberty so fast.
"A good haul there, and you're too young to enjoy it.  Let's get you home so that mum can clean you up"  Karen, despite her now infantile mind, knew that something was very wrong here.
Seven houses and Karen's outfit now suited her age, and the addition of the thick nappy only added to that, while Harriet had developed and grown into her costume.
And no one was any the wiser about the small reality changes, not even those who Harriet had changed with her invention.
Karen babbled to herself, she wanted to talk but she found speaking to be too clumsy, and all she could do was wet herself a little more.

After returning home where Karen's nappy was changed, Harriet stands over her sister's crib, her sister lying there on her back suckling away on her dummy and looking up at her sister.
"You really are adorable, your thick nappy, your little arms and legs, the whole cute as a button thing.  I wasn't sure if it would work well, but it did.  Mum sees you as her youngest and me as her eldest, your life is mine now and I'm going to change things.
And all you can do is mess yourself, babble and drool.  Want to know how it was done?"  Karen kicks her legs in reply.  Harriet takes out a small device from a pocket in her costume, which she was still wearing.

"It's a modified mobile phone.  I had an idea that I could alter reality in small doses but I wasn't sure how to make it work with the phone's lousy parts, so I took it apart and redesigned the parts, I had to retro fit some of it.
It took a while but eventually it became a reality, and I wanted to make sure it worked.  So while we were out trick or treating I had it alter things lightly, with each house visited I would alter reality a little bit, I would make people younger and transfer some of the excess energy into us, you became the baby you are now and I became the adult I've always truly been.
The younger you became, the more I grew to fit into my true reality.  And now here we are, you back in nappies and me the big sister.  Sadly I can't change everything, but everyone who knows you, or rather knew you, will see you as the baby you are.  They'll smother you with attention, change your nappies, maybe, and basically treat you as the little bundle of cuteness that I've turned you into.
And no one will look down on me as some little kid again, if they do then they'll returning to nappies, or maybe the womb.  I know you can understand me, even a little, and I'll be making sure that I keep this hidden from you so that you can't restore things to how they were.  Sweet dreams, cutie, welcome to a new life"  Karen starts to cry, her dummy slipping from her mouth.  Harriet picks her up from her crib and rocks her gently.
"Now now, just lose yourself to the comfort.  The device also works off regrets and a part of you that you refused to acknowledge knew that you wanted this, so you got what you wanted just as I did"  Patting her sister's thickly padded backside, Harriet continues to cradle her sister until Karen falls asleep, then places her back in her crib and leaves the room.
She had her adulthood to enjoy.

Has someone changed your reality recently?