By: boostermania
PART 1
Jack was scrolling through his phone when Iris called. Her voice was practically buzzing with excitement.
"Jack, you have to come over. I’ve got something crazy to show you!"
Jack chuckled. "Crazy how? Like your attempt to build a robot that made toast, or…?"
"No, this is legit," she said, undeterred. "Trust me. You’re gonna love it. Just get here, okay?"
Jack sighed, curiosity getting the better of him. "Alright, fine. I’ll bite. Be there soon."
When he arrived at Iris’s house, she greeted him with a wide grin and led him straight to her room.
"Sit down," she instructed, pointing to the bed.
Jack sat, watching as Iris rummaged through her desk. Finally, she turned around, holding a sleek, futuristic device.
"Jack, meet my latest invention: the shrink ray."
Jack squinted at it. "A shrink ray? Seriously? You expect me to believe that thing works?"
Without a word, Iris pointed the device at a plastic plant on her desk. A quick flash of light later, the plant was barely two inches tall.
Jack gawked. "What the… That’s insane."
He stared at the now-tiny plastic plant, his jaw still hanging open. "You’re kidding me… It actually works?"
"Told you," Iris said, twirling the shrink ray in her hands, looking impossibly smug.
"Okay, but… you’re not seriously suggesting—"
"Oh, I am," Iris interrupted, grinning ear to ear. "You’re next, Jack. You’re the perfect candidate for this experiment!"
He blinked at her, unsure whether to laugh or back away. "Perfect candidate? How do you figure that?"
"Well, for starters," Iris teased, placing a hand on her hip, "you’re already five centimeters shorter than me. Shrinking you isn’t that much of a leap."
Jack groaned, rubbing his face. "Really? Short jokes? Now of all times?"
She laughed, sitting beside him on the bed. "Okay, okay, I’ll be serious. Look, Jack, I’ve been testing this thing for weeks. It’s safe. But I can’t exactly shrink myself, can I? I need someone I can trust to help me figure out what it’s like. Someone who’s curious, maybe even a little brave…"
Jack glanced at the device in her hands, the thought of shrinking spinning in his head. "I don’t know, Iris. What if something goes wrong?"
Her grin softened into a more reassuring smile. "I get it, Jack. Really, I do. It’s a big leap of faith. But I promise, I’ll take care of you. You know I will. And think about it—how many people can say they’ve experienced this? You’d be the first human to ever be shrunk. That’s kind of cool, right?"
Jack hesitated, weighing her words. The idea was tempting, no doubt about it. The thought of seeing the world from a completely different perspective, of experiencing something no one else ever had—it was hard to resist. Sure, there was danger. Iris could get a little too excited at times, and the power of having him so small might go to her head. But the sheer wonder of it outweighed the risks.
"Alright," he said finally, exhaling deeply. "Let’s do it. But if I end up stuck like this or worse, I’m haunting you for the rest of your life."
Iris’s face lit up with excitement. "You won’t regret this, I promise!" She stood, taking a few steps back and raising the shrink ray. "Now, hold still. This might tingle a little."
Jack braced himself as a flash of light enveloped him. The world shifted around him—his body felt weightless, like he was floating for a split second. When the light faded, he blinked, looking up at Iris.
Except now, she wasn’t just Iris. She was a giant.
Her face filled his entire view, her sparkling blue eyes wide with awe as she knelt down, looming over him like a skyscraper. "Jack… it worked! You’re two inches tall! You’re adorable!"
Jack looked down at himself, his tiny hands trembling slightly as he took in his new size. "This… is insane," he muttered, craning his neck to look up at Iris, who grinned down at him.
Iris crouched down, her face inches away from him. "You’re so small," she said, her voice filled with wonder. "This is… incredible. How do you feel?"
"Uh, tiny," Jack said, shrugging awkwardly.
Iris giggled. "I bet. Okay, next part of the experiment!" She reached for a glass jar sitting on her nightstand and held it up for Jack to see.
"Wait, you already want to experiment on me?" Jack eyed the jar suspiciously. "What’s that for?"
Iris smiled sweetly. "It’s just to keep you safe. I mean, you’re so small now, and I’d feel awful if something happened to you. Plus," she added with a playful tilt of her head, "no one’s ever experienced what it’s like to be inside a jar at that size. It’s… kind of exciting to think about, don’t you think?"
Jack hesitated. The idea of being inside a jar didn’t exactly thrill him, but Iris’s reasoning made sense. And her excitement was contagious.
"Okay," he said finally. "But just for a little while."
Iris beamed. "Perfect! Climb in."
With some effort, Jack hoisted himself over the edge and settled inside the jar. The smooth, glass walls rose around him like a fortress, and he couldn’t help but feel like a bug in a trap.
Iris leaned in close, her massive blue eyes peering at him. "How is it?" she asked, her tone genuinely curious.
"Not bad," Jack said, though he wasn’t entirely convinced. "Kind of… weird."
Iris giggled. "Weird, huh? Well, you look adorable in there."
They chatted for a few minutes, with Iris asking him about the view, the acoustics, and how it felt to be so enclosed. Jack answered honestly, gradually relaxing as her curiosity seemed genuine and kind.
But then Iris shifted uncomfortably, glancing away.
“Everything okay?” Jack asked, noticing her sudden change in demeanor.
“Uh, yeah,” Iris said quickly, her cheeks flushing pink. “It’s just… well, I kinda need to fart.”
Jack froze, his tiny body tensing. “You what?”
“I know, and I feel bad,” Iris admitted, her voice filled with genuine guilt. “But… Jack, the idea of… well, you being there, so small and trapped, and me just… I don’t know, it’s hard to explain.” She paused, visibly torn.
Jack raised an eyebrow, already nervous. “You can explain, Iris. Like, now.”
She sighed, shaking her head. “It’s just… it feels like something I shouldn’t want to do, but I kind of do.”
“Wait, no, Iris—”
But before he could finish, she lowered herself onto the jar, her yoga pants stretching taut over her curves. Jack’s view was completely eclipsed by her massive backside as she settled into place, sealing him inside.
“I’ll try to keep it quick,” she muttered, though a shiver of excitement ran through her.
BRRAAPPPTTTT
The jar vibrated as a deep, resonant fart filled the space. Jack winced, the sound deafening at his size. The warm, noxious air spread quickly, leaving him coughing and spluttering.
“Iris!” he shouted, his voice muffled by the sealed jar and her weight pressing down on the airholes.
Iris gasped softly, the sensation of releasing her gas on the jar exhilarating. She shifted slightly, savoring the strange mix of power and pleasure. “Sorry, Jack,” she said, though her tone betrayed her growing enjoyment.
Jack pounded on the glass, his voice strained. “Get off! I can’t breathe in here!”
Iris bit her lip, guilt flashing through her mind as she looked down at the jar beneath her. But the thrill of power, of having Jack completely at her mercy, was impossible to ignore. She shifted slightly, keeping her weight firmly planted over the airholes.
“Just a little longer,” she murmured to herself, biting back a grin.
Inside the jar, Jack was coughing, the stale, stifling air making it almost impossible to breathe. “Iris, come on! Let me—”
PFFFFRRTTTTT
Before he could finish, a sharp sound escaped Iris again, hotter and denser than before. The sound echoed faintly in the confined space, and Jack stumbled back, his face contorting as the already unbearable stench intensified.
Iris sighed softly, her cheeks flushing. “That… that was a good one,” she admitted under her breath, a hint of shame creeping into her voice. But she didn’t move.
Minutes passed. Jack’s coughing grew louder, and she shifted her weight ever so slightly, allowing a tiny rush of fresh air to sneak through. It wasn’t much, just a tease, but it was enough to momentarily clear some of the haze inside the jar.
Jack gasped, sucking in what little clean air he could, only to see Iris glance down at him with a mischievous smirk. “Oh no, no. I’m not done just yet,” she teased, quickly settling back into position, her toned figure sealing the jar shut once again.
Jack groaned, stumbling to the glass. “Iris! This is—” He coughed hard, unable to finish.
Iris leaned forward slightly, peering into the jar. Jack’s tiny form was busy trying to wave the noxious air away, but his movements were frantic, panicked. For a moment, she felt a pang of guilt, and after a little while—just enough to savor the moment but not enough to cross the line—she finally lifted herself off the jar.
Fresh air rushed in, and Jack collapsed to the bottom of the jar, panting heavily. Iris knelt down, unscrewing the lid and waving away the remaining fog. “There. Better?” she asked, her tone lighter now, though her cheeks still carried a faint blush.
Jack glared at her, still coughing. “Better? You—ugh—need to rethink your experiments!”
Iris chuckled, reaching out to gently lift the jar and inspect him closer. “You survived, didn’t you? You’re tougher than you think, Jack. Besides… wasn’t this kind of fascinating?”
“Define fascinating,” he muttered, leaning against the glass for support.
She tilted the jar back and forth, her blue eyes sparkling. “You know… I’ve got a few other things we could test next. Like, what would happen if—”
“Stop,” Jack groaned, already dreading whatever her “creative” ideas might involve.
Iris smiled coyly. “Oh, you’ll see. Maybe we’ll even invite some friends next time… wouldn’t that be fun?”
Jack’s face paled. “Iris—”
But her laugh cut him off as she screwed the lid back onto the jar lightly as to leave enough breathing room, leaving him to wonder just how far she’d take her newfound curiosity.
PART 2
Jack lay at the bottom of the jar, disoriented, his world nothing but sweltering heat and the lingering weight of Iris’s scent. The air was dense, thick with a musky, almost stale warmth that clung to his lungs with every breath.
Above him, Iris stretched her arms lazily, her toned stomach flexing as she arched her back. “Mmm, that felt soooo good”, she purred, rubbing her belly.
Jack groaned. “Iris, enough! You made your point.”
She tilted her head, a slow smirk spreading across her lips. “Did I, though?”
Jack’s stomach twisted. Something about her tone was different. Before, she had been teasing, playful, but now? Now, it felt like she was savoring this, like she wasn’t quite ready to stop.
Her fingers toyed with the jar absentmindedly, rotating it just enough to make him stumble inside. “Y-know, Jack,” she mused, tapping on the glass with her nails, “I was thinking. You hate this so much. But what if I made it worse?”
His blood ran cold.”Worse?”
Iris grinned. “Well, I’ve been holding back a little.”
Jack’s face paled. “Iris- don’t-“
PPPPFFFRRTTT!
A loud, deep burst of air rattled the jar as Iris shamelessly let one rip, her toned cheeks flexing slightly against the hard surface.
Jack immediately gagged, doubling over as the stench slammed into him, thick and humid from being trapped in the enclosed space. The glass fogged up slightly from the sheer heat of it, a visible reminder of just how much worse this had just gotten.
“Oof.” Iris winced dramatically, waving a hand near her rear. “That one had some weight to it.”
Jack coughed violently. “Iris- stop! It’s- ugh- worse than before!”
She bit her lip. God, the way he reacted…
PPPPPRRRRFFTTT!
Another one blasted into the jar, this one lower, wetter, the sound vibrating through the glass.
Jack stumbled, falling onto his hands and knees, his stomach twisting in revolt. The air inside was completely different now- hot, rotten, unbearably thick.
Iris shuddered slightly. Watching him shrink in on himself, completely powerless, sent a strange thrill down her spine. She had always loved teasing Jack, but this? This was something else.
Her thighs pressed together just slightly as she exhaled slowly.
“God, why is this so hot?”
Her fingers traced the jar’s surface, watching his tiny form struggle against the invisible force of her own body.
“You still fighting it?” she murmured, voice just a touch breathier than before.
Jack glared up at her through the haze. “Of course I’m still fighting it! This is disgusting!”
She giggled. “I know. That’s why I like it.”
Jack could barely process the implications of that before her fingers wrapped around the jar.
“Alright, let’s change things up a bit.”
Iris lifted herself of the jar and plucked him out, her fingers warm and slightly sticky from the heat trapped inside. Jack gasped at the rush of fresh air- or what passed for fresh air, given that he was still trapped in her grasp.
He didn’t get to enjoy it for long.
Iris reached to her side, grabbing a pair of worn, black yoga shorts.
Jack immediately started struggling. “Iris- don’t you dare-“
But she wasn’t listening. Instead, she brought the fabric close to her face, inhaling experimentally.
And then she recoiled slightly, eyes widening.
“Ohhh, wow.” She laughed, waving them slightly to air them out. “These are.. ripe.”
Jack’s stomach twisted in dread. He didn’t even want to imagine how much of her scent was baked into those.
Iris smirked down at him. “Here, you smell.”
Before he could protest, she pressed him face-first into the thickest part of the fabric- the butt section.
Jack let out a muffled yell, thrashing violently as the deeply embedded scent of sweat and lingering musk flooded his senses. The fibers clung to his face, trapping him in the overwhelming warmth of where her body had been.
Iris giggled at his struggles, rubbing him in slightly. “Yeah, that’s strong, huh?”
Jack’s head spun. The faint, stale remnants of past sweat mixed with something deeper, something more humid-
Iris finally pulled him away, laughing softly. “God, you should see your face.”
Jack gasped for air, shuddering. “Iris, please, stop this…”
But she was already slipping into the yoga shorts, wiggling them up over her toned hips.
Jack watched in horrified anticipation as the fabric snapped snugly around her curves, perfectly molding to her round, athletic rear.
Then, before he could react, her fingers curled around him again.
“Time for the real fun.”
Jack screamed as she peeled open the waistband and shoved him inside.
The heat was instant.
The soft, sweat-lined fabric engulfed him, pressing him into the humid space beneath. He struggled, kicked, pushed-
But the pressure increased as Iris let the waistband snap shut.
PPPPPFFFFFRRRRRRRTTTTT!
Jack screamed again as a heavy, humid burst of air filled the space, soaking straight into the fabric surrounding him.
Iris let out a breathy giggle.
“Oh my god, that felt way too good.”
She clenched her thighs, just slightly.
And then, with a satisfied sigh, she pressed her hips against the bed, trapping him in the heat.
“I think I’ll keep you in here a little longer…”