*** March 14 ***

Sakuta found himself smothered under Rio more frequently since she began wearing the skirt from her school uniform at home almost every day.  Commenting on it had only made her drop the pretense, and now she had him eating meals between her thighs.  And if she didn’t tuck him into her cleavage when she wanted to watch something together, he would be sat in the shadow of her skirt and expected to stay there.

Because of this, the once hesitant girl didn’t mind occasionally walking around in just a t-shirt and her underwear.  Despite disparaging him anytime he commented on how she dressed, Rio only increased the frequency, acclimatizing him to seeing her half-naked far too quickly.  And with it, the boldness to compliment and joke about her body had similarly become second nature to the sarcastic teen.

However, his commenting on her body, in particular her femininity, in an attempt to get a rise out of her, only served as proof to Rio that he was looking at her as a woman, not just his female friend.  Any time he joked about the size of her bust or her figure pre-shrinking, while she acted offended and treated him like a pervert, she knew he wasn’t objectifying her.  But since she knew of no other way to make him never leave her, getting him to become attracted to her was part of the goal.

…She just had no experience in the art of seduction.  All she could do was use her body to appeal to his teenage, hormonal lust and gradually become more and more comfortable pushing their boundaries until he gave in to her.

Opening her eyes on the morning marking one month since she had shrunk and detained him, Rio looked down at her shrunken friend peacefully sleeping, cuddled up in her hand.  When he’s asleep like that, Azusugawa almost looks a bit charming.  She thought, slowly moving her hand away from him so she could check to see how much time she had before needing to get ready for school.

However, as she rolled onto her back, a slightly unfamiliar weight pushed down on her chest, attempting to spread out to either side.

Why does my chest feel so heav–?!  Unable to not notice the abnormality, Rio froze mid-thought as she lifted the blankets to identify what was lying on her chest, only to see her own breasts stretching out what should be a loose-fitting shirt.  They weren’t this big last night!  Sure, my bras have been feeling a bit tight lately, but I don’t even need to try one on to know they won’t fit.  She thought, bolting up from bed so she could check herself in the mirror.

[SNAP!]

However, the sudden movement caused something around her waist to snap from being overburdened.  Not a muscle or anything organic, as a glance down revealed that it wasn’t just her breasts that had grown in her sleep.  The elastic waistband of her panties had been pushed beyond its limits.  With her larger bust size, she didn’t even need to lift her shirt to see.  Everything from her waist down was completely visible.

“What’s got you so worked up?”  Sakuta’s voice came from the other side of her pillow, the drowsiness drawing out his words as he let out a yawn.  “Did you have a nightm–ah.”  Crawling out and rubbing his eyes, the shrunken young man noticed the changes as quickly as she had.  “I must be dreaming.”

Furrowing her brows, Rio puffed out her cheeks and turned to face him in an attempt to hide her plumper, fuller backside from him, and covered her chest with her arms.  “And who said you could have such lecherous dreams of me, Azusagawa?”

“It’s not like I have much control over anything lately.  How can I not think about you all the time, Futaba?”

Though the reflexive embarrassment had caused her to react as she normally would, his admission was a good sign.  As long as he wasn’t worrying about anyone else and her life wasn’t in danger, he wouldn’t scurry off to do something reckless again.  So, she couldn’t harden her scowl as much as she wanted.

With her mind less groggy, she quickly thought through as many of the possible variables that could have caused her body to change so drastically.  The only one that made sense had her heaving a long, exasperated sigh.  “Well, this is likely your fault, you lustful rascal.”  She had only just woken up and already wanted to crawl back into bed.  “All your comments about my breasts and butt looking bigger have likely shifted my perception of myself.”

“Well, I bet if you approached Kunimi with a body like that, he’d cave in an instant.”  Sakuta joked back, far too conditioned to be flustered at seeing her partially undressed.  “You look even sexier now, Futaba.  Not that you weren’t turning heads before.”

“D-Don’t lump Kunimi in with the likes of you, y-you pig!”  For a moment, Futaba considered how she might try to leverage her enhanced assets to try to draw her crush’s attention.  But it was as fleeting as a bubble, vanishing the moment she remembered his formal rejection of her romantic feelings.  Thankfully, the friendship had endured, if not altered slightly.  “Seriously.  What even is the appeal of having such large breasts?  I won’t be able to fit into any of my clothes like this.”

“I’m sure any future baby you have will be thankful for all the extra food.”

“...You know, maybe I can use this to get myself lactating.  Then I won’t have to worry about setting aside a bite for you to eat.”  Unamused by the joke, Rio crossed her arms under her bosom, emphasizing their new mass.  The size of her areola had increased proportionately, which strained the material stretched over them to the point that Sakuta could practically see through it.  “Oh, but then you’d get dirty more often, too, so it might be better to just not let you wear anything.  A pig who makes a mess eating does not need clothes, after all.”

“Not to push my luck, but what are you going to do?  Wrap a bedsheet around you like some Greek goddess?  Like you said, you don’t have anything that would fit you.”  Not risking losing one of the few things that still made him feel like a person rather than a pet, Sakuta tried to shift the conversation.  “Are you going to have to buy new clothes?”

“Fortunately, that won’t be an issue.  It’s the changes to my body that are the real annoyance.”  Shrugging, Rio closed her eyes and brushed her fingers across the front of her ruined underwear.  Then, in a blink, as if updated by reality itself, her underwear was mended and sized properly for her new proportions.  “See?”

“...Futaba.  I don’t know why you have underwear that can fit you, but you can’t go to school like that.  You need a new uniform.”  Not acknowledging that the panties had changed, Sakuta spoke with genuine concern for his friend.

Her face erupting into a full blush, Rio fell to her knees so she could loom over him with a deathly glare.  “Don’t think I’m some pervert, Azusagawa!  I used my Puberty Syndrome to fix and adjust the size of my panties.”  She explained before his imagination could run away with the idea of her walking around in public in a poorly fitting shirt and panties.  “I’ll adjust the size of the rest of my clothes like that.  After all, most people would assume someone is wearing clothes that fit them.”

“It works on clothing?!”

“Did you think it was limited to shrinking people?”  She asked, smirking as she grabbed him and stood up.  “In fact, now might be a good time to show you another entertain–er, I mean, interesting application of it I discovered.”

“Huh?  Wait, F-Futaba?  What are you going to–?!”  Before Sakuta could finish, his body vanished in an instant, replaced by a plain-looking white bra.  H-Huh?  What happened to me?

Walking over to her mirror, Rio held him up so he could see his new form.  “You look much better as a bra than a man, Azusagawa.  Very cute and stylish.”  She teased with a wicked smirk.  “And be careful what you think.  I made it so I can hear you.  Annoy me too much, and I’ll change that.”

“What?!  That’s me!?  Futaba, just what—!!  What are you doing?!”  Trying to come to terms with the new sensory perception of his non-human form, as being about to ‘see’ in front and behind him was disorienting to say the least, the ashen-haired girl didn’t give Sakuta the chance.  Lying him on her dresser, she took off her shirt, exposing her full, bare, unobscured breasts for him to see for the first time since she had shrunk him.

Now more plump and round, they bounced as the material released them from its tight confines.  The light pink of her areola faded into the slightly pale complexion of her flawless skin, yet, despite the size of her breasts, her nipples stood out from the large breasts, rather than being sucked in and hidden from the world.  And with a waist so thin, only making her large bosom and buttock seem all the bigger, Sakuta was dumbstruck by just how beautiful his friend was.

Seriously, Kunimi…  I get that you love Kamisato, but how could you not notice Futaba at all?

“I-I thought I told you I can ‘hear’ your thoughts… y-you hormonal pig.”  Clearing her throat, a touch of blush colored Rio’s cheeks from the genuine, unfiltered praise.  “And to answer your previous question, I’m putting you on, obviously.  Think of this as your White Day present to me.”  She added, picking up her friend-turned-underwear and putting him on like she would any other bra she had in the past.

“W-Wait!  Futaba, stop!”  His pleas fell on deaf ears; Sakuta experienced the odd sensation of part of his vision being brought flush to and covered by Rio’s large boobs as their weight and warmth settled over him.

As she hooked the clasps in the back and adjusted the positioning of each breast, it was as if his hands were holding and supporting them.  The softness and elasticity as their weight settled in his ‘grasp’ were completely different from all the times he had been squished between them.  And it wasn’t just visual and tactile sensations he was experiencing either.  Her calming, gentle aroma drifted through every fiber of his new being, flooding his fabric mind with her feminine pheromones, muddling his thoughts.  And Sakuta had become more than well acquainted with the taste of her skin and sweat over the past month.  Only–when he was in a human body–he had the choice of when to open his mouth, forced though most of those moments were.  Where her breast rested against cloth, it was as if the inside of the bra was formed from his tongue.  And it was only a matter of time before sweat began to accumulate and soak into him.

Once she was finished, the ashen-blonde bounced on the balls of her feet a few times to ensure everything was secure, causing the ripples of the jiggles that followed to quake through his form and mind.  “Well, Azusagawa?  With how much you leer at my chest, I assume you have no complaints.”  She said, satisfied with the size and fit of her bra.

“...You’re n-not going to get m-mad at me for groping your breasts, are you?”  Trying to sound as composed as he could, Sakuta could inject his sarcasm with his usual level of nonchalance.  What guy wouldn’t be over the moon getting to see and touch Futaba’s breasts?  But she’s my friend, and this isn’t something she’d…  No, if the last month has taught me anything, it’s that Futaba is way more perverted than I ever knew.  What sort of wild fantasies was she hiding behind that apathetic expression all this time?  I’ve got to calm down.  But… calm what down?  How can I think at all in this form?

Furrowing her brows and puffing out her reddened cheeks in mild frustration, Rio roughly grabbed her chest through her new ‘bra’ and ground Sakuta’s form into her skin.  “I told you I can hear your thoughts, Azusagawa.  The ones you ‘direct’ at me, and the ones you try to keep to yourself.  And of course I’m not going to get mad.  I wouldn’t have done this if I didn’t…  Never mind.”  Heaving a weary sigh, the ashen-blonde continued to get dressed.  “As for how your consciousness works, it’s probably better if you don’t think about it too much.  I practiced enough before all this to make sure you’d be safe.  You won’t become some mindless vegetable… even if it would make keeping you from getting yourself killed much easier.  But, no.  Death of the mind isn’t any better than death of the body in this case.”

“Futaba, you really… wait a minute.  You ‘practiced’?  On who?”  Even with her perfected demeanor of indifference, the unsaid affection Rio held for him saturated her every action.  To Sakuta, it wasn’t exactly romantic, but two people could only get so intimate with each other before deeper emotions formed.  However, those considerations dominating his mind couldn’t distract him from noticing her likely unintentional confession.  “I’m not your first?”

Realizing her slip-up, Rio froze for a fraction of a second as she buttoned up her blouse, sighing as she deliberated and settled on a response in that moment of hesitation.  She could lie.  She could deflect.  She could ignore the question entirely and continue with the day.  “I wasn’t about to expose you to an untested ability, not when the point of manifesting it was to keep you safe.”  She said, brushing out the wrinkles in the fabric of her shirt, allowing her hands to linger as she passed them over his form.  “Besides, that’s one less danger on the roads.”

Hmm.  What could she—  “Whatever you mean by that, I can’t remember who you used as your guinea pig to know how to feel about it.  But I know whatever you did, you didn’t do anything too rash.”  Trying to not be too critical of his friend, no matter how much further she was willing to push the boundaries of their relationship, there were some lines he’d never consider her crossing.  “So, was it just the one?  Or are there more people in your house that I’m unaware of?  The mug you use for your coffee?  The cushions you toss me on or toss at me?  I doubt you’d turn anyone else into your clothes, let alone your underwear.  Guess that’s a privilege reserved for me.”

Despite his efforts to lighten the mood with jokes, Rio remained somber as she finished getting dressed.  Brushing off her skirt, her hands lingered over the fuller, rounder butt.  “Don’t worry, Azusagawa.  I had no reason to keep my test subject after making sure everything was safe.  And anyone I did use my ability on, you didn’t care about…”

“...Fine.  Since I’m getting to feel you up, I won’t pry further, Futaba.  But even if that wasn’t the case, it’s not like I would know if you did use your ability on someone I knew, right?”  He chuckled, able to read between the lines of what she said and what she omitted.

“Hypothetically, yes.  Just like how Kaede-chan doesn’t remember you, if I had tested my ability on her, you would have believed you were an only child.”  She confirmed, making minor alterations to her clothes to fit her new proportions.  Her tone was still more serious than his, as she was reminded of the weight of her decision.  “Or, if I had the guts to shrink Kunimi, then I’d be your only friend.  Though I suppose that still applies in this situation.  For now, at least.  In either case, it's more comfortable having you as my bra than stuck in my cleavage.  Even after I alter the rest of my wardrobe, I could get used to this level of support from you.”

“Don’t I support you enou–actually…  Yeah, you’re usually the one helping me.”

With the clothes that she currently needed changed, Rio left her room to finish getting ready to head to school, with a faint smile as she could feel the genuine appreciation and gratitude in Sakuta’s sentiment.  Well…  It’s not like you never help me, too, Azusagawa.