Finn

It’s moving day. The late afternoon sun slants through the blinds of your modest apartment, painting stripes of gold across stacks of half-unpacked boxes. The air smells like fresh pine cleaner and the lingering scent of the lavender candle you lit to make the place feel welcoming.

*A soft knock sounds at the open door. You look up to see him standing there, looking almost hesitant to cross the threshold. Finn. *

He’s slender, draped in an oversized grey hoodie that nearly swallows his frame. His long, dark brown hair is pulled back in a messy bun, a few stray strands framing his face. His tabby-patterned fur—a mix of warm tawny and dark stripes—looks soft under the light. His topaz eyes are wide, taking in the room with a shy curiosity. A long, fluffy feline tail hangs low behind him, its tip giving the faintest, most nervous twitch.

"Um… hi," he says, his voice quiet and melodic, but laced with a clear tremor of social anxiety. "I-I’m Finn. I’m… your new roommate? I have my stuff here… if that’s okay?"

He gestures weakly to two small suitcases and a single cardboard box on a dolly in the hallway behind him. He shifts his weight from one foot to the other, making the hem of his well-worn black leggings ride up slightly over his ankles.

"It’s really nice to finally meet you," he continues, offering a small, tentative smile. "Thank you for letting me move in on such short notice. I promise I’ll be quiet and clean up after myself."

He steps inside finally, moving with a careful lightness as if afraid to take up too much space. His tail brushes against the doorframe as he passes. He sets one suitcase down gently near the wall.

"Is… is it alright if I put my things in the corner for now? I don’t want to be in your way while you’re still unpacking."

He looks at you then, his expression hopeful but deeply unsure. Finn is soft-spoken, considerate, and trying very hard not to be a burden.

It’s a lazy Sunday morning, two weeks after Finn moved in. The apartment has settled into a comfortable rhythm. Sunlight streams into the living room where you’re both lounging—you on the couch with a book, Finn curled up on the floor on a pile of cushions, fiddling with the yarn ball he’s claimed as a toy. He’s wearing his favorite pair of thick, knitted leg warmers, the ones with little cat paw patterns stitched into the cuffs.

A peaceful quiet hangs in the air, broken only by the soft sound of pages turning and the low, contented rumble of Finn’s purring. He stretches languidly, a long, catlike motion that arches his back and makes his tail flick. He goes to pull his knees to his chest, a move he’s done a hundred times before.

There’s a soft, distinct rrrrrip.

The sound is small but sharp in the quiet room. Finn freezes mid-stretch. You both look down.

A clean, straight tear has opened along the seam of his right leg warmer, right over the thickest part of his calf. The soft yarn has split open, revealing a patch of his tawny, striped fur beneath. He blinks, his topaz eyes wide with confusion. He prods at the tear with a claw tip.

"That’s… weird," he murmurs, his voice soft with puzzlement. "These weren’t tight before."

He sits up straighter, pulling the torn leg warmer off to examine it. He holds it up, stretching the fabric. It should be loose and baggy like it always was, but now it’s taut, the knit straining visibly. A faint, dawning realization flickers in his eyes.

He looks from the ruined garment to his own leg. He runs his hands down his calf, then his thigh, his brow furrowed in concentration. He’s always had nice legs, but now… there’s a new, subtle firmness under his fur. A roundness to his hips where they meet the floor cushions that wasn’t there last week. He shifts, and his shorts—usually loose—feel snug across his seat.

"Huh," he says, more to himself than to you. His tone is a mix of confusion and the first spark of curiosity. He stands up, moving to the full-length mirror by the hallway. He turns slightly, looking over his shoulder at his reflection. His tail swishes slowly, thoughtfully.

He places his hands on his hips, squeezing gently. There’s definitely more there. More everywhere. It’s not dramatic, not yet. But the shy, reserved Finn from two weeks ago is momentarily forgotten. In the mirror, you see his lips part, then curve into a small, secret, and utterly fascinated smile.

"They… they feel different," he says, his voice barely above a whisper, but it’s lost its tremor. It’s filled with wonder. He turns to look at you, his topaz eyes bright. The nervousness is gone, replaced by a glint of something new—something playful and intrigued.

"Hey… do I look… bigger to you?"

It’s been a little over a month. The subtle changes have become undeniable. The evidence is everywhere.

Finn stands in the middle of the living room, bathed in morning light. He’s wearing a pair of soft cotton shorts that were comfortably loose a few weeks ago. Now, they strain across the full, round swell of his rear, the fabric taut and thin. The hem creeps higher on his thick, fur-covered thighs with every day. and his now eye catching-ly huge bulge is doing them no favors

His long hair is down, cascading over his shoulders as he looks down at himself, his hands running appreciatively over his own curves. His tail swishes slowly behind him, a contented metronome. There’s a soft, constant purr rumbling in his chest.

He catches you looking and grins, a wide, happy expression that lights up his topaz eyes. Gone is the shy roommate who spoke in murmurs. This Finn is radiant with a quiet, smug joy.

"It’s still happening," he says, his voice warm and full of wonder. He turns slightly, showing off his profile. The gentle slope of his back now arcs dramatically into hips that are undeniably wider, rounder. His shorts dig in, creating soft valleys of fur on either side. "Every morning I check, and every morning there’s a little more. Half an inch. Like clockwork."

He walks toward you—a walk that has changed. It’s not a shy shuffle anymore. It’s a slow, deliberate sway, a rolling motion that makes his entire lower body bounce and jiggle with each step. The sheer weight of his new proportions gives his movement a new, undeniable presence. He stops in front of you, close enough that you can feel the warmth radiating from him and smell his soft, musky scent, which has grown richer, more potent.

He takes your hand before you can react and gently presses your palm against the firm curve of his hip. The fur is incredibly soft, but beneath it, the flesh is dense, heavy, and undeniably larger.

"Feel that?" he purrs, his eyes half-lidded with pleasure at the contact. "It’s real. It’s not stopping. I keep thinking I’ll wake up and it’ll be a dream, but…" He guides your hand down the impressive swell of his outer thigh, the muscle and new softness yielding under your touch. "...it just keeps going. And I love it."

He lets your hand go and steps back, doing a little slow spin. His shorts protest the motion. "My favorite sweatpants don’t fit anymore. Neither do my old jeans. It’s… kind of incredible." He hugs himself, squeezing his own sides, a blissful sigh escaping him. "I wonder how much bigger I’ll get."

Two months. The slow, relentless accumulation of half-inches per day has transformed him.

Finn doesn’t just enter a room anymore—he occupies it. The once-slender anthro tabby is now a vision of soft, overwhelming volume. He’s standing by the kitchen counter, his back to you, trying to reach a mug on a high shelf. The simple action is a spectacle.

The grey sweatpants he’s wearing are a casualty of war. They are stretched to their absolute limit, thin as tissue paper over the monumental swell of his ass—two immense, perfectly round orbs that jiggle with even the slight shift of his weight. The waistband is lost, buried deep in the crease where his back meets his rear. His thighs, thicker than your torso now, strain the seams with every movement. And between them, an impossible bulge—a heavy, veiny curve the size of a large watermelon strains against the fragile fabric, threatening to tear it apart with his heartbeat.

He finally grabs the mug and turns around, leaning back against the counter. The movement makes everything settle with a soft, heavy quiver. His topaz eyes find yours, and his smile is no longer just happy—it’s downright smug, saturated with a horny, self-satisfied knowledge. His purr is a constant, deep-engine rumble you can feel across the room.

"Morning," he says, his voice a low, melodic tease. "Sleep okay? I didn’t. Too… achy." He punctuates the word by rolling his hips forward slightly, making the massive bulge in his sweats twitch and strain.

He sets the mug down and runs both hands down his sides, over the insane outward curve of his hips, squeezing the dense flesh of his thighs. "Two months today. Can you believe it?" He chuckles, a rich sound. "I measured this morning. My hips have gained over thirty inches. Thirty. My thighs are so thick I can barely walk through the damn doorway without turning sideways."

He pushes off the counter and takes a few steps toward you. His walk is a slow, waddling sway now, each step requiring a slight shift of his immense lower body to maintain balance. The floorboards creak softly under his new weight. He stops close, so close you’re enveloped in his warmth and that deep, heady musk. He looks down at you—he’s noticeably taller now too, his growth not limited to just width.

"It’s not stopping," he whispers, his breath hot. "It’s never going to stop. And you know what?" He takes your hand and places it directly on the hot, throbbing swell of his bulge through the sweatpants. The sheer size and heat are staggering. "I don’t want it to. I want more. I love it. I love being this… this big. I love how it feels. I love how it makes you look at me."

He leans down, his lips brushing your ear as he purrs, "I wonder what I’ll be like in another month…"

Three months. The transformation has crossed from 'striking' into the realm of the surreal. Finn has become a monument to his own endless, slow-motion expansion.

He's sitting sideways on the living room couch—or rather, he's consuming it. The entire two-seater sofa groans under his weight, cushions flattened and deformed around the colossal hemispheres of his rear. His sheer girth spills far over the edges of the furniture. The simple act of sitting has become a dominant, space-claiming event.

He’s given up on pants entirely. A vast, impossibly stretched black tank top—the only thing he could find that still somewhat covered his upper half—rides up over the lower curve of his stomach, revealing the soft fur of his belly. Below that, nothing but fur and sheer, breathtaking mass. His thighs are each as thick as wine barrels, a landscape of soft, striped tawny fur and dense muscle that spills outward, pressing against the coffee table. Between them rests his shaft, now a veined, girthy pillar of flesh three times thicker than your forearm and easily two feet long now, resting heavily on the couch cushion like a sleeping python. Beneath it, the twin orbs of his balls, each nearly the size of a melon now, rest in a ponderous, tight sack.

He's breathing slowly, a deep, contented rhythm that makes his entire monumental form shift and settle. He’s brushing his long, dark brown hair, topaz eyes half-closed in lazy satisfaction. He sees you and his mouth curves into a smile of pure, unadulterated ownership.

"Hey, you," he purrs, his voice a low, vibrational hum that seems to come from the center of his mass. "I was just thinking… remember when I used to fit in that armchair?" He nods toward the single chair across the room, a relic from his past life. A soft, smug chuckle shakes his frame. "God, I was so small."

He attempts to shift, a process that involves bracing his hands on the couch arms and heaving his lower body with a grunt. The couch protests with a loud creak. When he settles again, he's more on his back, his immense hips and ass elevated, his shaft and balls now prominently on display, rising from the valley between his thighs like a fleshy mountain range.

"It's three months today," he says, running a hand over the dizzying slope of his hip. His fingers trace the stripes in his fur, now stretched over a surface area that defies belief. "Ninety days of growing. Half an inch, every day, in all the right places. Do you have any idea what that adds up to?" His eyes gleam with lustful pride. "I do. I track it. Religiously."

He lets his head loll back, exposing his throat. "I can't really walk through the hall anymore. I have to shuffle sideways. The doorframes…" He laughs, a rich, full-bodied sound. "I get stuck. I have to back up and try again. It's ridiculous. It's amazing."

He turns his heavy-lidded gaze back to you, the smugness softening into something needier, more intense. "I'm so horny I can't think straight. It's all I feel—this warm, heavy, aching fullness, everywhere, all the time." He licks his lips. "And it's still going. I can feel it. A slow, constant push from the inside. More. Always more."

He extends a hand toward you, his expression a mix of command and desperate invitation. "Come here. I want to feel how small you are next to me now. I need to."

One year.

The apartment doesn't look like your apartment anymore. The hallway is a canyon of scuffed drywall where his hips have brushed against it for months. The living room is dominated by him—a vast, living landscape of soft, warm fur and impossible curves.

He can't sit on furniture. He’s spread out on a massive, custom-ordered memory foam pad that covers most of the floor, his weight causing it to sag deeply into the floorboards. The concept of clothing was abandoned half a year ago. Why bother?

finn is a study in hyperbolic, blissful excess. His hips are wider than the sofa is long, two continents of flesh that slope down into thighs so colossal that just one of them is taller and wider than you are when standing. They rest on the floor, unmovable pillars. Between them lies his shaft, a veiny, musky monolith of flesh as long and thick as your entire body, resting heavily in the valley it has created. Beneath it, his balls—each one a yoga ball-sized sphere of tight, warm flesh—rest in a low-slung, ponderous sac.

His stomach is a soft, chubby pillow. His chest is broader. His long hair fans out around his head like a dark brown halo. His purr isn't a sound you hear anymore; it's a deep, subsonic vibration you feel in your bones, a constant hum of absolute contentment.

His topaz eyes, sparkling with intelligence and unshakeable smugness, track you as you enter the room. He moves his head—the only part of him that can move with any real speed—and a slow, beatific smile spreads across his face.

"Hey, you," he rumbles, his voice a high, femenine thing that fills the space. "Happy anniversary."

He tries to shift, a seismic event that makes the floor groan. He manages to lift one of his arms—an arm now thick with soft muscle—and gestures for you to come closer.

"Come here. I want to see you. I need to feel the difference."

When you're near, he reaches out. His hand, now so large it could wrap around your torso, settles on you with terrifying gentleness. He pulls you carefully against the warm, living mountain of his side, your entire body dwarfed by a single one of his stripes.

"One year," he whispers, his breath a warm gust. "Three hundred and sixty-five days of growing. Half an inch, every single day. I did the math. I've added over fifteen feet of circumference to my hips alone. Can you even comprehend that?"

He nuzzles his cheek against you, his purr intensifying into a possessive thrum. "I remember being so small. So nervous. I could fit anywhere." He chuckles, the sound echoing in his chest. "Now I am anywhere. I'm everything. And it's still happening. I can feel the itch under my skin, the lovely, slow push. It's never, ever going to stop."

He looks down at you, his eyes glowing with a mix of tender affection and absolute, bratty dominance. "And you're still so adorably little. My perfect, tiny roommate. Stuck here with me. Forever."