Miracle-Fit Bra - chapter 7

A mother and two girls have their lives - and bodies - transformed when they try on a new kind of magic underwear.

Originally posted to DeviantArt in June 2019.

For the next few hours, Yumika spent most of her time on mundane childcare duties, like adjudicating an argument between Saki and Miku about who had been hiding whose underwear, and breaking up every squabble between Kimiya and the other... well, they weren't children anymore, even though her former husband was most definitely acting like one.

The rest of the afternoon was spent on paperwork, including forms to take Saki and Miku out of school next year and (unbeknownst to Kimiya) to put her former husband in school. If they hadn't found a way to change him back by September, he'd be joining his daughters' old school as a fourth grader.

As she said so herself, the education system was not great, but it would be nice to take Kimmy off her hands for a few hours each day. Who knew how long he'd be stuck in that body?

Plus, she had a crazy idea she wanted to enact over the summer, and she didn't want the kid getting in the way of things. This by itself would generate an enormous amount of paperwork, more than she could handle in one day. If it was successful though, then it may be helpful to have her daughters to stay out of school in the long term. She didn't know that it would be, but she had to do the paperwork now, just in case.

As such, she'd barely spent any time preparing for the appointment with Sandra that evening, which she'd told herself was definitely not a date.

At first, she didn't want to put makeup on because she wanted Sandra to see her in her 'natural' appearance. Then she realized that would be hypocritical of her, as she was still wearing the Miracle-Fit bra and panties, and would not be taking them off for Sandra. She compromised by applying a small and barely noticeable amount of make-up, but it lifted her appearance all the same. Then she wondered what else could she wear.

There were only five minutes to go before Sandra was due to arrive, and she had nothing to wear besides underwear. She had been prancing around all day in her undies because none of her old clothes fit anymore.

In a frenzy, she rifled through the clothes and tried to choose the best from a meager display of options. There was not a single top in Yumika's wardrobe that wrapped around the enormity of her boobs. And she didn't want Sandra to see her boobs on the first date... or did she? She'd already seen them once in the store. So rather than cover up her bust, she opted to double down on her outlandish size and pick a top that was comically undersized for it.

This simple white waistcoat would do. She fastened the top two buttons and nothing else. The rest of the garment hung down as two loose pieces of fabric across her bosom. To this, she added a navy blue jacket, fastening only the bottom two buttons this time, which left it wide open at the top. Together with a waistcoat, it left a diamond-shaped gap in her middle through which the black bra was clearly visible.

Yumika heard the doorbell ring.

"Somebody let her in!" she called down the stairs.

Quickly, she had to think of something for her bottom half. She opted for a similar theme, picking out a tartan miniskirt that she hadn't worn in years. It just about managed to wrap around her waist, but barely covered half of her enlarged rear end. The panties were also clearly visible.

She added a few necklaces and bracelets to complete the look, even though the necklaces weren't so much hanging from her neck as resting on her boobs. Then she squirted herself with her favorite bottle of perfume for good measure, wished herself luck and went downstairs.

"Does my butt look big in this?" she said, announcing her entrance to the room where Miku was receiving the guest.

If she had been drinking, Sandra would have spat out her mouthful in surprise.

"Whoa, Yumi! Is that really you?"

"Yep. And a whole lot more where that came from!"

"You look like a deity!" said Sandra.

"D'aww, you flatter me."

"No, you flatter yourself!"

When she tried to think of an appropriately flirty response Yumika found herself wondering, hey, are we flirting?

The fact that Sandra was licking her lips seemed to answer that question for her.

With all this at the forefront of her mind, she led her guest through to the dining room, where someone - presumably one of her daughters - had set tables out for five people.

"I don't know if you plan on staying for dinner," Yumika said, "but the option's always on the table if you'll pardon my pun."

Sandra giggled. It was the first time she'd heard her giggle.

"Let's attend to official business first," she said, "and then..." she trailed off.

Two women and one girl sat waiting for her in the living room.

"Everyone - this is Sandra. You've already met Saki and Miku. And this is Kimmy."

The women smiled and said hello. Sandra waved back at them. Then she turned to face the child, who was sulking in the corner as usual.

"Ah, you must be the one who..." Sandra began, but was quickly interrupted.

"Your stupid underwear did this to me! You stupid..."

Kimmy threw a stream of swear words at Sandra and ran across the room swinging her right fist. Before she got close, Miku had to step in and restrain her.

"What she means to say," said Miku, fighting a tangle of prepubescent limbs, "is that she's suffered a lot of emotional distress because of this, and she looks forward to resolving it with words."

Being called 'she' seemed to have a calming effect on Kimiya. It was either that or Miku's grip was just too strong for him, and he gave up trying to resist.

"Aw, you poor thing," said Sandra, who looked like she wanted to pat the young girl on the head, but didn't dare, in case she bit her. "I'll help you get your body back, and offer you a refund."

"Actually, I was the one who bought them," said Saki. "And they were on a 3-for-2 offer, so you wouldn't really be refunding anything."

"Well, if you insist," said Sandra. "I'd still like to pay you back somehow. But now, onto our most pressing concern. Are you wearing the undies now?"

The question was directed at Kimmy.

"No. I took them off," was Kimmy's monotone reply.

"Well, whose panties are you wearing?" said Saki. "It'd better not be mine!"

"Girls, please," said Yumika, hoping they'd deal with that issue later.

"If you could bring them to me, that would be awesome," said Sandra.

"I'll go," said Saki, who came back 30 seconds later with a matching set of panties and a training bra.

"Okay, these are the ones then?" said Sandra, holding them up to the light and checking the label. The others nodded. "So I guess the first thing I'll do is to try them on and see if they work."

Before anyone could voice their objections to her using this cursed magical object, Sandra added: "Don't worry. If anything happens to me, I can always fix it with magic."

She took the white panties and pulled them on over her jeans and underneath her billowy black dress. Then she donned the white bra over her clothes in a similar fashion, pulling the strap tight as her chest began to shrink.

"All right then," she said. "I guess you'll get to see what I looked like as a kid."

The young woman shrank and shrank before their eyes. Within the first few seconds, she had lost inches from her height at the same time as her curves faded into the folds of her now-oversized black dress. But the transformation was not done yet. Moment by moment, her face became ever more round and babyish looking than before. Her nose grew smaller and freckles returned. The black dress proceeded to swallow up her feet as her shrinking legs returned her to the same exact height as Kimmy, presumably the same age as well. Even her hair had lightened from its original auburn red to a reddish shade so light it was almost blonde.

"So far, so good," said the newly minted child. "Now Kimmy, if they were still magically bonded to you, they wouldn't have been able to do this to another person."

"What does that mean?" asked Kimmy, sounding anxious.

Sandra scratched her tiny head with an even tinier hand. Yumika noticed how small it looked in comparison to the sleeve of her adult-sized dress. It almost looked like the sleeves of a witch's robe.

"It means that if I take off this underwear and don't change back," she began, loosening the bra and whipping it over her head, "then it's probably an issue with this particular item. But, if however I take them off and I do change back..."

No sooner than she had said this, her entire top half began to expand, closely followed by an increase in height.

"Oh, cool! It's working."

Her chest, head, and hands were all simultaneously growing bigger. It was like watching a hot air balloon inflating, or sped-up footage of a growing flower. Slowly, her reddish blonde hair returned to its auburn color. All the creases in her dress disappeared and the body inside grew to fill it. The hem rose off the floor to reveal her shoes, along with her jeans, and her original adult-sized underpants pooled around her ankles.

"Goodness me!" said Sandra with a grin. "Looks like we've both seen each other's panties today."

Yumika grinned back.

"What does this mean?!" said Kimmy, now even more anxious than before.

"It means the problem's not specific to the garments themselves. So it might just be that your body isn't compatible with..."

Kimmy knew what this meant and immediately switched on the waterworks. She was bawling her eyes out because she knew she was going to be stuck in this body for a long time to come while they figured things out. And if it was going to be 'she' from now on, she may as well get used to it.

"Wait. Did you say 'he?'" said Sandra.

"No," said Kimmy.

"Not you. On the phone earlier - you said your cousin tried them on by accident, and now he can't change back, is that right?"

"Oh yeah, that sounds about right," said Yumika.

"So am I correct in saying this is your male cousin?"

Yumika nodded.

Kimiya was aghast. So it seemed his wife had spun a lie to Sandra about how her husband was actually her cousin? Well, damn it. He wanted to be mad, but he remembered this lie had been his idea.

"But what does that mean?!"

"Well, it's possible that if a man or male-assigned person uses the Miracle-Fit undies to become significantly younger, then the spell may not work on them the same way as it does with..."

"Get to the point, woman!"

"I haven't tested it on men."

"WHAT!?"

"Okay, okay. Don't be mad! I test every new type of undies on myself, many times actually, throughout the development process. And that's about all I can do for now. It's hard, but I do all of it. There is no second team member. Miracle-Fit is me, and no one else. It's a one-woman operation."

Sandra took a deep breath before continuing.

"I mean, it's hard enough to get people in bed with me, let alone convince a stranger to test magic spells on them that have never been tested before. And do I look like the kind of person who'd have a boyfriend?"

"Yep, definitely a lesbian," Saki whispered to Miku.

"It's not like I don't warn men at the store not to wear them," said Sandra.

"Well you clearly don't do a good enough job," Kim snapped back at her.

"How was I supposed to know some gross pervert was going to try them on when I sold the undies to two girls?"

Kim was so hot behind the ears. He wanted to shout out that the others had made him wear them. But if he did, they would probably all deny it at the same time. So there was nothing he could say to help himself, but:

"It was a prank, actually," he simpered in his most fragile, girlish tones. "It sorta got out of hand, but I guess you're right. I shouldn't have put them on. And I guess I'm paying the price for it now."

He didn't have to pretend to cry now. His eyes were already watering.

"Kimiya, that's not true," said Yumika. "I shouldn't have done it. And I never would have played such a mean-spirited prank on you if I knew this was going to happen."

"No, it's my fault," said Sandra. "I should have... added a warning label or something."

Miku leaned forward and pulled Kimmy into a hug. The girl didn't hug her back, but she also didn't resist.

"Wait," Saki said. "Didn't you say that if something went wrong you could fix it with magic?"

"I can only fix myself with magic," Sandra clarified. "It wouldn't work on you though because you're not a witch,"

There was silence from the other four as the implication sank in: that they had just allowed a witch into their home.

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