Himiko was diligently storing samples in an analyzer. The samples were small, rounded beakers of a dark green chemical, and the analyzer a plain looking box shaped device with holes designed specifically for these beakers. Himiko diligently placed each into a corresponding hole into the box. A tedious task, one suited to her position as a lab assistant. With practiced precision, the box was quickly filled and with a button press the box slid into the counter it rested on with a mechanical whir before a hatch closed the hole it receded in to. Another, louder whir followed as the sample container was jostled around inside the counter, an important step to processing and analyzing these samples.

As the samples processed, Himiko was distracted enough from her work to take stock of her situation, a rare moment considering how busy the professor kept her. Himiko was dressed in a very revealing outfit. A tight lab coat outfit right out of a porno, appropriately short, and appropriately revealing in her chest. Unbelievably, this wasn’t the most striking part of her outfit. That would be the diaper. From the outside it was just a solid pink canvas diaper cover, secured around Himiko’s waist by a belt locked on with a magnetic lock as well as similar belts around the diaper cover’s leg holes. Underneath her outfit was also a chest harness attached to the diaper cover. Similar belts attached to the front and back of the diaper cover, going over her shoulders, and an additional belt went around her chest covering her bosom. The whole thing looked a little like overalls. With no less than eleven magnetic locks and six belts securing it on, Himiko was thoroughly prevented from removing the diaper cover and getting to the diaper underneath it.

The whole diaper cover set up was woefully uncovered by Himiko’s revealing outfit. The length of her top stopped at the top of the diaper cover itself and the ample opening for her bosom revealed the belts going around her shoulders and chest.

Underneath that diaper cover was, unsurprisingly, a diaper. One with a childish pink unicorn print and that was, at the moment, very wet. Himiko didn’t have much of a choice in either regard. The professor had picked out her diaper insisting the embarrassing print was the most absorbent. He was right, but Himiko highly doubted that was the real reason. As for it being wet, Himiko wasn’t getting out of her diaper cover. So, she was left with the option of either using her diaper, or holding her urine in while she worked, which was next to impossible with all she had to do on a daily basis.

Himiko had gotten so used to wearing and using a diaper that she only briefly acknowledged how wet her diaper had gotten, only giving a light pout about it. When the locking diaper cover was added over her diaper, Himiko gave up the fight of holding it, when the overall like belts were added she gave up on attempting to sneak out of it, a few months after that Himiko had learned to not even ask for a diaper change. She had gotten used to it.

When Himiko had started she thought her lab outfit was a little unusual, that was before the diapers were even introduced, but she stayed because Dr. Kazey was considered a genius. She could put up with a sultry work uniform if it meant working for a genius. Heck, getting lewd stares from a genius didn’t hurt either if it meant a good recommendation. That same attitude followed when the diapers were introduced when she was taking “excessive bathroom breaks.” Sure, it was a flimsy excuse, and clearly Dr. Kazey saw her as less of a college and more of a pretty picture to ogle that also did menial tasks, but, at the end of the day, this was experience that could land her a killer job in the future and worth the humiliation.

At some point this line of thinking stopped, yet Himiko remained. She didn’t really understand why. Anyone with any sense would have left when she was made to wear a diaper, and only someone truly insane would still say when they were locked into that diaper forcibly for hours on end. Himiko knew that, but she felt she couldn’t leave at this point. She felt her wet diaper against her and the restraints keeping it secured to her. It had stopped being something to further her career. She had settled into a role now; she was the diapered assistant.

“How are the samples baby girl,” Dr. Kazey entered the room snacking on a piece of pie. Dr. Kazey was dressed more like one would expect a scientist to be dressed. A well-worn white lab coat covered a loose-fitting shirt and sweatpants.

Dr. Kazey had a particular air about him. An air of a genius that knew he was a genius. He had a particular attitude toward Himiko as well, one that evolved as her attitude toward him did. As she fell into her role as his diapered assistant, Dr. Kazey fell into his role as something more than just Himiko’s boss.

“I just put them in the analyzer sir,” Himiko said quickly. “They should be done soon.”

“Good girl,” Dr. Kasey patted Himiko’s diaper cover. Himiko swallowed the question in her throat because she knew better than to ask for a diaper change. She got changed at the beginning and end of her shift and that was it. Until then she was to stay in her diaper no matter how used it was.

The two stood silently for a moment before a ding sound signaled the samples were done processing. Himiko stood to the side, making herself small as Dr. Kazey poured over a sheet of paper that printed out of a printer on the counter. He hummed thoughtfully as the sample analyzer whirred back up from its position underneath the counter having finished its processing.

Dr. Kazey huffed in disappointment as the skimmed the paper.

“Well not what I was hoping for.” As Dr. Kazey complained. Himiko felt a gurgle in her gut. It meant her diaper was about to be more than wet. Without much thought Himiko prepared to push.

“Himi?” Dr. Kazey said noting the shift in his baby assistant.

“Sorry sir I’m messing.”

“What did we talk about?”

“Ah sorry,” Himiko corrected. “I mean I’m makin poopies in my diapee,” she said the more embarrassing phrasing almost robotically.

“Good girl,” Dr. Kazey praised proudly. “When you finish, please file these samples under 14-b.”

“Yes … sir,” Himiko said as she grunted and finished pushing the mess into her diaper. In only a moment of adjusting herself Himiko was back to work. The fresh mess in her diaper that was constantly rubbing against her was barely a bother, or rather she made it appear that it was barely a bother. Himiko could feel Dr. Kazey smiling as she loaded the beakers into a cardboard box. She knew he took satisfaction in watching her work in a full diaper, and she had grown her own satisfaction at his gaze.

Himiko moved to the next room, a large storage room full of filing cabinets. She quickly moved to the specified cabinet, opening a drawer filled with similar boxes full of similar samples. Himiko wrote a brief note on the box with a marker before storing it in the filing cabinet and closing it shut with an annoyed sigh. Now that she was alone, she could openly emote about how much her messy diaper was bothering her, and Himiko took advantage of the quick moment to pout and stomp her feet. She wondered why she still stayed, but when the thought of leaving entered her mind she just couldn’t imagine it. The idea of not getting praise bothered her. So, she shook off her discomfort and donned her obedient demeanor again as she left the storage area to go back to Dr. Kazey.

She stopped briefly as she entered the main lab area, as the lab had a guest. Another short woman dressed like a scientist should be dressed as. It was almost a mirror to Dr. Kazey’s garb. The visitor immediately turned to Himiko, and Himiko knew her outfit afforded her no modesty.

“So, this is your latest project,” the woman said thoughtfully.

“Yes Dr. Piers,” Dr. Kazer answered. “I think she’s finally at a point that I can start showing her off. Come baby girl.” Despite the blush on her face, and her growing anxiety Himiko couldn’t help but obey the command and she approached Dr. Kazey, stopping at his feet. She kept eye contact with him while Dr. Piers moved behind her, lifting the bottom of her already revealing outfit.

“Does she really use those?” the visitor asked while at the same time pressing Himiko’s diaper against her. Simultaneously getting her answer and causing a small squeal from Himiko.

“Why don’t you hear it from the baby’s mouth,” Dr. Kazey smirked. “Baby girl please tell Dr. Piers what you do in your diaper.”

“I-I …” Himiko stuttered.

“Face her when you say it. Eye contact,” Dr. Kazey said spinning Himiko around. Despite having to look down slightly to meet the gaze of the surprisingly short scientist, Himiko felt impossibly small. Her brain screamed at her to not say anything, that the humiliation was just too much. Despite that though she performed the command with gusto.

“I make pee pees and poopies in my diapees,” Himiko said quickly with a slight stutter.

“I’m impressed,” the small scientist said. “He’s got you trained well doesn’t he.”

“Yes, I am very well trained,” Himiko answered.

“Why don’t you grab us sample box a-24 baby girl?” Dr. Kazey commanded gently. Himiko jumped at the opportunity to waddle her freshly smushed diaper butt out of the room.

When she was alone again, Himiko’s thoughts were racing. Why did she just do that? Had she really fallen so far as to willingly debase herself? She knew she was falling into a role but had underestimated just how far into the role she had fallen. Even as she thought all of this, she dutifully opened the appropriate filing cabinet and grabbed the box ordered by her master. Her concern amplified again as she entered the main lab room.

“So, you say this is mostly psychological?” Dr. Pierse asked quizzically.

“Yes. You’d be surprised how far just some subtle suggestion can get you. I prefer that. Relying on chemicals might dull my baby’s intelligence,” Dr. Kazey gave Himiko a nod as she handed the box of samples to him. “She may not look it, but she is very bright. Keeping her intelligence intact is imperative for her role as my lab assistant.” Himiko found her stomach fluttering at the praise despite the vile circumstances the man had put her in. “It is only mostly psychological though,” Dr. Kazey removed a beaker from the box. “A subtle chemical ingested orally that makes one more susceptible to praise.” Dr. Pierse grabbed the beaker and turned it over in her hand. “Tasteless too, and it remains potent even when slipped into a drink. Isn’t that right baby?”

“Yes sir,” Himiko answered immediately. The answer was a little quiet though. Inwardly her world was crashing down around her. Now things were starting to make sense. Why she had stayed here despite how ridiculous things had gotten, and why she found herself hanging on every word Dr. Kazey said. She had been under the effects of this drug the whole time. Even now, with full knowledge of this, the thought of leaving and being separated from his praise made Himiko feel cold inside.

“I haven’t been able to get a brew quite this potent again,” Dr. Kazey mused. “Though I think it is possible to get something even stronger with the right mixture.”

“Even this seems pretty effective,” Dr. Pierse looked from the beaker of chemicals to the girl locked in a messy diaper and slutty outfit that was the result of the serum. “Keeping a competent assistant that is so obedient and eager to fulfill your … proclivities,” Dr. Pierse glanced at Dr. Kazey who simply shrugged at the comment. “Himiko, what do you do in your diapers again?”

“Make poopies and pee pees,” Himiko answered quickly.

“Getting her to say that in front of some investors,” Dr. Pierse continued her thought. “Is a huge sell.”

“I’ll have to work on her presentation skills,” Dr. Kazey mused. “This is actually the first time I’ve shown her to anyone.”

“Could have fooled me.” Himiko was aware that she was being talked about while she wasn’t there, but she simply remained quietly standing there waiting for commands and the praise that would come from following them. “Maybe you can teach her some tricks: sit, beg, roll over.” Dr. Pierse said looking over Himiko like she was an item.

“I can probably get her to sing a song about how full her diaper is,” Dr. Kazey joked.

“I am kind of wondering though,” Dr. Pierse pondered. “Why all the locks if she’s so obedient. Surely, she wouldn’t try to take her diapers off.”

“That’s part of my proclivities,” Dr. Kazey admitted. “But I’m sure she wouldn’t be a bad girl and try to take her diaper off. Right Himiko?”

“No sir,” Himiko nodded. "I’m not allowed to change my own diapees," Dr. Kazey gave Dr. Piers a look.

“Still, I’d like to see it,” Dr. Pierse looked to Dr. Kazey.

“Well let’s conduct an experiment,” he responded confidently. “Undress for us Himiko.” With a silent nod Himiko got to work quickly getting out of the skimpy outfit so she was standing in just the complicated diaper cover. “We’ll leave her here in her diaper while we go get some lunch,” Dr. Kazey explained as he used his magnetic ring to unlock the various magnetic keys securing Himiko’s diaper on. “And we’ll see if the diaper is still on her when we get back.” When he was done, Himiko’s diaper cover and the various locks and belts lay on the floor. “Be a good girl and go put that on my desk baby girl and grab the collar on it on your way back.”

“Yes sir,” Himiko felt a release of endorphins on hearing the words “good girl” and didn’t think much about the command. The desk was just in the next room, so it was only a moment before Himiko returned wearing nothing but her visibly used diaper and holding the aforementioned collar with and attached leash in her hands.

“Good girl. Stay still for me,” Himiko obeyed and found the soft leather collar wrapped around her neck and locked with the familiar magnetic lock. Dr. Kazey took the short leash in his hand. “Now you want to be a good girl for me, right?”

“I want to be a good girl,” Himiko said in a trance like tone.

“Good, go tie yourself to my desk, and stay there until I come back, and no taking off your diaper.”

“Yes sir,” Himiko took the leash from Dr. Kazey and waddled back to his desk.

“Impressive,” Dr. Pierse marveled as she watched the naked girl in a used diaper tie herself to a desk leg with a short leash. One that wasn’t even long enough to allow her to stand. She looked almost confused at herself as she settled in to as comfortable a position as she could.

“Shall we?” Dr. Kazey asked.

“I am getting peckish,” Dr. Pierse giggled as she and Dr. Kazey left the lab. Himiko was left alone, tied to her boss’s desk wearing nothing but a soiled diaper.

There was a time where Himiko would take this opportunity to immediately change out of her diaper or at least detach the leash from her collar to let her roam around. Even as the short leash harshly yanked against her as she tried to adjust, she found she couldn’t. She couldn’t bear the thought of the disappointed look Dr. Kazey would give her if she disobeyed. It was clear that Dr. Kazey’s success was tied to how well behaved she was, which suited her fine because being well behaved meant she got more praise.

Even now with the revelation that her addiction to praise had been chemically induced, Himiko still craved it. The knowledge of the source of that craving had done nothing to wane the voracity of the craving. So, despite the knowledge that Dr. Kazey had been secretly drugging and manipulating her to be the obedient submissive diapered lab assistant tied to a desk she now was, Himiko couldn’t help but be the best obedient submissive diapered lab assistant she could be.

AUTHORS NOTE: Here's the next one off. This one was mostly just a smutty idea I had. You can read these one offs as they come out over on my ream https://reamstories.com/bigred0603 or subscribe star pages https://subscribestar.adult/bigred0603 hope you all enjoy