For Max, the next several days felt like years. Trapped in Hazel's huge, unwashed ass day-in-day-out, with nothing to breathe but farts, nothing to drink but sweat and nothing to eat but occasional junk food crumbs he managed to scavenge from her mattress and the seat of her gaming chair, he fell into a routine of unimaginable deprivation—at least, until his captor finished fabbing his new 3D-printed plug-suit. 

Before the plug, Hazel had been content to simply leave her shrunken research assistant in the crack of her ass. Granted, this wasn't great, but it still left him a fairly significant amount of mobility—and the occasional opportunity to slip out to find food while she was sleeping or gooning. With the plug, all of that changed overnight. Molded to fit around his body like an oversized mascot costume, it left him frozen in a standing position with his arms at his sides, surrounded by soft silicone, with only his face exposed. It also meant that he was now trapped up Hazel's ass rather than merely pressed against it.

She'd completed the plug on Tuesday and promptly celebrated by fastening him in and shoving him up her asshole. His only breaks since then had been her occasional trips to the bathroom, where she was at least considerate enough to leave him sitting on the floor instead of letting him fall into the toilet. From the limited awareness of the passage of time he had between these breaks and the subtle changes in movement between Hazel's days and nights, it was now at least Saturday. He had absolutely no idea how he'd made it this far without suffocating.

Unfortunately, Daisy hadn't been much help, either. While the giant shut-in had made several trips to check in on him since last Saturday, her buck-toothed neighbor had expertly downplayed her concerns every time—leaving Max's original rescuer convinced that the only way to get him back to normal lay in trusting the depraved genius's judgment. Now, whether he liked it or not, he was completely at Hazel's mercy.

As he felt his huge horny captor rolling out of bed, he braced himself for whatever she had in store for him. Because Hazel took most of her classes remotely and easily aced every test without ever cracking any of her textbooks, she spent the majority of her time holed up in this room — generally, either eating, sleeping or gooning — day in, day out. 

If her previous daily routines were any guide, she tended to start the day with a big, sloppy dump. When she removed the plug, he knew he could expect a few much-needed minutes of fresh air—as fresh as the air in a toilet stall occupied by a girl as big and foul as Hazel could be, at least. Today, though, he felt his silicone prison being pulled out much earlier than usual.

Easing her plug out of her ass, biting her lip as she felt her asshole gently releasing its favorite new toy, the huge, butt-naked gooner settled into her chair and powered up her computer. "Mornin', miniguy! How'd you sleep?"

Face to face with the giant, grinning nerd who'd turned his life into a living hell for the past week, Max sighed. As usual, there wasn't a shred of genuine sadism in her eyes. Somehow, by her own twisted, horny brand of logic, she'd simply concluded that this was the most reasonable way to treat a guy like him. "F-fine. H-how about you?"

"Good enough," she said, shrugging. "So, you ready for today?"

Max winced. "What's today?"

Hazel's grin grew. "Today... if my calculations are correct, and they always are, I should know what you got dosed with!"

Max scowled. The idea that Hazel had already wasted several days cobbling together his silicon prison and was only just now getting to the bottom of the most basic questions of his whole predicament did not inspire confidence. "It's... it's shrinking serum, right?"

Hazel rolled her eyes. "Not a science guy, huh? That's like saying it's a "pain reliever." There's like, thirty different shrinking serums it could be. And only a few that aren't permanent." 

"Oh..." Max forced a smile. "Y-you mean... t-today's the day we find out if you can grow me back?"

Hazel nodded. "Precisely, miniguy. Precisely." She double-clicked a window on one of her six desktop monitors, wallpapered with an image of Jinx from League of Legends getting messily rimmed by Harley Quinn, and pulled up a folder marked 'MINIGUY TESTING.' On the desk beside her, a secondhand clinical centrifuge was still spinning away, processing the several samples of her shrunken research assistant's DNA that she'd squeezed out of him over their first few pre-plug days together. "Looks like we've got about an hour until it's done... juuust enough time to celebrate!"

Max went white. With Hazel, "celebrating" meant only one thing—and he knew that there was no talking her out of it. 

Before he even had a chance to protest, his giant gooner captor was prying him out of his silicone prison. Finally able to move his arms and legs again after at least 48 hours, he did his best to stretch as she brought him up to her lips to clean him off. Rather than taking him into the bathroom to wash him in the sink, she simply extended her huge tongue and gave him several good licks before spitting onto the floor and rinsing her mouth with a sip from one of the several half-empty Monster cans on her desk. Then, and only then, she brought him down to her huge, hairy, already-dripping sex.

"Oh, yeah," said Hazel, biting her lip again and cueing up several tabs of porn. "Just like that."

As far as Max could tell, the only upside of spending the last week trapped in and around Hazel's ass was that it had spared him from her hungry pussy. Now, enveloped in her warm, slimy folds, he got everything he'd been missing and more. As his giant captor edged herself closer and closer to her first orgasm of the day, he was barely able to breathe through all the sweat and slime.

BBBBRRRRAAAAAAAAAPPPPPPPPPP

"Wow!" Hazel giggled, getting a whiff of her own fumes and pressing Max even harder against her clit. "I forget how much that plug holds back!"

*

By the time the giant gooner came, she'd been at it for a full three hours—and the centrifuge on the desk had finished processing at least 120 minutes ago. Peeling her shrunken assistant out of her pussy and bringing him up to her lips to suck him clean, she managed to get at least one orgasm out of him—something that seemed only fair, to her, given how much she'd come to appreciate his help over the last week.

"There we go," she said, plucking Max out of her mouth and setting his drained, barely-breathing body down on her desk. "Now, let's see what we've got."

With a few taps of her keyboard, the 'MINIGUY TESTING' reemerged—and now included a new document labeled 'RESULTS.' When Hazel double-clicked the document, her eyes went wide. "No way..."

Struggling to make much of the jumble of numbers, symbols and chemical diagrams on screen, Max looked to his giant captor for reference. "What does it say?" 

Again, Hazel grinned. "It says... this serum is one of mine!"

"Oh," said Max, unsure whether this was good or bad news. "So, uh... is this one permanent, or not?"

"Short answer, yes and no." Hazel adjusted her glasses. "The thing about this serum is, it's modular. There's no getting it out of your system once you've taken it... but you can tweak the effects."

Against his better judgment, Max allowed himself a brief moment of optimism. "Does that mean there's a way to get me back to normal?"

"Let's find out." Turning her attention back to her screen, Hazel pulled up some kind of complicated-looking calculator app and lazily hammered in a few complex equations. When she saw the results, she smiled. "Huh. That's interesting."

Max wasn't sure he liked the look in Hazel's eyes, but he forced himself to return her smile. "What?"

"According to my calculations, it might be possible to synthesize a supplementary serum to get you back to normal. But it also might be possible to do something a little..." Hazel wiggled her eyebrows. "Different."

Max froze. "L-like what?"