[Second Person, Diapers, Soiling, Weight Gain, Slob, Hair Growth]

You had messed up. You got caught in the act of thieving. That was why you were currently stuck in this incredibly stuffy room. And you faced down the woman that had been interrogating you for days upon days on end. Niijima Sae. The woman that you had taken something important from...

But that wasn't important. Not right now. You had told her plenty about your activities, detailing the heists that you and the Phantom Thieves of Hearts had gone through. As well as the many things that you had done to build up a base of confidants, making it easier to carry out your exploits with nothing to worry about. But...

"You once let slip that you only have one regret. And that's a specific week." Sae said, as she read through the many notes she had taken over the course of your interrogation. "What's so terrible about that week, to the point where you of all people look back upon it with nothing but disdain?"

You didn't want to recall it. But you knew that now that she had zeroed in on it, You had to explain. You reminded her that telling her about all of this would take quite a bit of time, given everyone involved, and she gave you one important thing to keep in mind.

Focus on the ones involved, one at a time. And you took that to heart, as you spilled the beans on the worst week of your life.

---

It had started out like any other week. You were between heists, which meant that you had plenty of time to train your abilities. Not only that, but you had time to bond with the ones that you had made your allies. Especially the girls that either guarded your secret, or joined you on your escapades.

The night before, you had gone into the subconsciousness of humanity. To make sure that you hadn't missed something during your last attempt to explore it. And at a glance, it seemed like nothing was wrong. Even as you noticed that a lot of the Shadows that wandered the halls seemed to be a bit more... Feminine, if excessive.

You were confident that it was just some sort of uneasy spell. That nothing was actually wrong. And on that day, you would go bond with the girls that you had gotten comfortable with, starting with the daughter of that CEO...

Haru Okumura. The sweet-hearted girl despite her rich origins. She believed wholeheartedly in your cause, even if it would put you up against her Father's ambitions. All so that he could see the world as it truly was.

None of that was important, when you went to meet her at one of the many Big Bang Burger joints that dotted the country. Something was off about her. Something thick. And you weren't talking about her stomach, you knew that she was a little chubby if you tugged away her sweater-jacket. No, you were looking somewhere else, after she had accidently spilled a bit of sauce down on her lap.

"Hm? What are you staring at?" Haru asked as you looked at her with a sharper gaze than usual. Especially as you turned your eyes down towards her wider hips, and the thing that was sticking out underneath her skrit.

She chuckled a little as she put a hand on her hips, causing a soft crinkling to echo through the air. It was a diaper. A thick, made-for-adult-babies diaper. You were certain she never wore that, but she acted like it had been there since the day she was born.

"You really love my diaper, don't you?" The fluffy-haired girl said, causing a blush to grow on your cheeks. You didn't love it. You thought it was weird, if you had to be honest. But she didn't see it that way. She saw that blush on your face as a sign of acceptance.

Haru got off her chair, slowly getting up. "Do you want the usual, or..." Her voice turned a little seductive as she put her hand on your shoulder, leaning closely. This was something you didn't anticipate from her, as you struggled to find the right words.

"I'm joking." She giggled, rubbing the side of her diaper up against your side. "If you really want it, you just have to call. I'll be ready." The rich girl said, slowly walking out of the joint after teasing you for just a moment.

You were certain that something was wrong. And the rest of your day would prove that. But you promised the prosecutor that you would focus on one girl at a time.

All eyes would be on Haru. The first to awaken a new kind of love inside you.

---

Your first encounter with the changed Haru was one thing. But you thought that was it. You thought that she was content to just be diapered. Especially since everyone that looked upon her didn't seem phased. It was just another part of life, that she was padded.

But then you met her again two days later, and she seemed to have gotten worse. And this time, your eyes were actually focused on her stomach. Because she didn't bother putting on her usual jacket.

"Mmmm? Where's my jacket?" The brunette replied, before giggled a little. "I've never worn a jacket, my gut won't fit in it. Would you like to touch it? Don't worry, it's as soft as it looks."

You knew it was. But that still didn't excuse just how big it was. Her gut looked like she had swallowed an exercise ball, and it kept firm even as it pressed up against the table. Not only that, but her diaper had definitely gotten bigger, and you swore that you could smell something wafting from it.

"Still looking down there, huh?" Haru asked, and you slowly nodded. You didn't want to be rude, because this all felt like some sort of fever dream. Your other encounters had proved that. To see so many girls diapered and disregarding how absurd the sight was...

You watched her get back up onto her feet, her sweaty body dripping a couple of droplets onto the ground below as she lumbered towards you. She was big. Really big. And you didn't know what she was going to do, even if it seemed like she was just going through the motions.

"Good, good..." The brunette said as she suddenly forced her gut up against you, pressing you against your seat. You could barely move with that much fat cushioning you, not to mention what was happening down below...

She was climbing onto your lap. Even as she pushed you so far into the seat, right up until she managed to sit down and squish her moist-sounding diaper up against your unfortunately erect member...

You let out a gasp, biting into your lip as you couldn't stop yourself from making a mess. And with that, she seemed satisfied, letting a bit of the cum soak out through your pants as her diaper absorbed it.

"Remember what I said." Haru giggled, kissing you on your cheek after she got up. After you had to pull yourself off the seat. "You just need to call. And you'll get the full course."

She left you there after that, having satisfied her hunger minutes ago. And you were left wondering if she could get any worse...

---

The week had gone by. You were spent. Everyone else had milked you dry, both proverbially and literally. But you still weren't done. Because at this point, you craved them...

And although you hadn't yet met Haru for the day, you called her. Because you wanted her and nobody but her.

"Oh, darling..." You heard her sensual voice over the phone, and your stiffy grew. You could hear her laugh, and that just brought you over the edge...

She didn't say a word after that. Just giving labored breaths into the phone, which stroked your inner ear. And you went straight to her home, getting more and more aroused as she kept going through this routine...

Getting to her room wasn't difficult. You just told the relevant people that you were here for her, and they understood. Though they didn't understand why you hadn't brought an offering, or spare diapers.

You immediately understood why once you entered the room, and a powerful stench wafted into your nostrils, your body trembling from the strength of it all.

"Hhhhaaaahhh... You took so loooong..."

There she was. The mess she had become. At the start of the week, she had a diaper on, one that she seemed to use the longer the week went on. And now...

Well, to see it filled with so much gunk that stunk to high hell was not really a surprise. It was a given. You knew that she had the bowels to fill them like that. Because with how much she ate whenever the two of you were together, it almost seemed like she was holding back.

Her body was now like a massive slab of fat. She didn't even bother wearing any clothes. Just her diaper. And it really made her obese body stand out. Every pore was dripping with sweat, grime, or something else that you didn't want to think about. Because dwelling on it for too long would probably make your pants burst off your body...

"Sooooo..." Haru gasped as she beckoned you to get closer. All while her hair, which had gotten so dirty and so long that it had managed to sprout into a fritzy and sticky afro atop of her head, wobbled thanks to her labored breaths. "You want it, don't you..?"

You nodded. You had an idea of what she meant, especially now that she had become such a slob. And you stepped closer, despite the smell. Despite the fact that she was so gross.

Because everyone else acted like it was normal. And at this point, you had to admit that you thought the same. Otherwise, your pants wouldn't be about to tear right off.

Once you got close enough, Haru lifted herself off the ground. She lifted all of that fat, and the massive mess inside her diaper, just so that she could turn around. And sitting right there in front of you, was the mess that made that disgusting scent.

You didn't get a chance to do anything, before she sat right back down. Nearly crushing you under the weight of the shit-filled padding at the same time. You could feel it creeping all over your crotch, almost like you were fucking a proper orifice.

"Mmmphh... Yessss..!" The fat slob that had been your ally gasped as she rocked back and forth. Gyrating you, and making you thrust your hips forward. Straight into that massive messy mountain. As it kept bearing down on you. You could barely keep yourself from cumming...

And then you felt it. You felt the hot air blasting against your cock. You felt the stinky sludge pouring down on you. And you heard her relief gasps as she pumped more into her pampers.

This was the full course. The front row seat to the messy parts of her. The experience of being used as a proverbial potty. And the delight of having your cock absolutely crushed underneath such a heavy load of waste.

She giggled as she looked down at you, relishing in your cries as you lost your grip. Cum upon cum upon cum poured out. Leaving you utterly unable to do anything except orgasm, until the two of you exhausted yourself.

The fat blob with the messy diaper and the fritzy hair giggled as she kept rocking back and forth. She was going to milk you dry, again and again...

---

You finished your tale. The parts of that terrible week, where you realized that Haru had become a diapered slob. And how you had fallen in love with her worse aspects, evident by how your pants had gotten wet throughout your recantation.

"...There's an inconsistency in your story." Sae said, as a crinkle echoed from her seat. "All women have been diapered since they left kindergarten." She continued, lifting herself from the seat, revealing a thick diaper between her thighs.

With that, interrogation time came to an end. And you were left alone, to dwell on what you had just witnessed.

Your cock squirmed. Was she going to fall like they had? You couldn't know, until the next time she'd show up for interrogation.

...You couldn't wait.