Dog Person Catches Small Mouse, Proceeds to Fuck It

Story by cellidor on SoFurry

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Good lords has it really been over a year since I wrote the last one of these? Far too long, much much too long. Well it's here, it's here and it's absolutely obscene. I mean it's a dog person and a mouse-sized mouse, what else could one expect?

Well hey, it's silly and over the top, but it's certainly sure to appeal for those who like over the top ridiculous smutty trash nonsense. Either way, enjoy the read and as always, feel free to suggest new ideas!


Dog Person Catches Small Mouse, Proceeds to Fuck It

By: Cellidor

"It'll fit."

Just a little note beforehand, this story is going to have a "split path" part-way through. One path for those who like "reasonable" sex, the other path for those who have only a passing interest in the notion of decency or the laws of biological physics.

The sun was just getting to that point in the sky where the normal cheery blue sky was being overtaken by a calming orange and red glow by the time a certain someone was on their way home. This someone, as it turned out, was a dog, and a rather strapping fellow at that. He was a Samoyed breed, tall as could be and frankly with enough fluff on him that his most frequent request from friends had been "Get a shave". Not for this fellow though, no, he -loved- his fluff! What he -didn't- like, however, involved a problem he'd been having in his house just a little while ago...mice.

Well, okay, "mouse", to be fair. He was almost certain that the culprit was an individual, some sneaky little thing skulking around his house, nibbling at his food, leaving crumbs and the like here and there, very rude! He did notice, however, that there wasn't a single nibble on the walls or furniture, or any of the electrical cables running through his house. This seemed to indicate to him that this mouse was a smart one...at least, he figured, smart enough to know when nibbling a thing would lead to a sparkly, adorable death.

He wasn't one to be outsmarted though, oh no! This mouse thought it was -so- sly, -so- clever to avoid the traps he'd laid out so far...but not this time! This time, he'd set up a very sneaky trap indeed. He'd figured out during his time hunting that the mouse seemed to move back and forth quite often in his laundry room, probably had its home somewhere nearby. As a result, he'd set up a small cage, but almost entirely covered it with his laundry, hiding everything but the entrance from view. As part of the trap, he'd "forgotten" some food in one of his pant pockets, which he felt was sure to attract the mouse's attention for sure! Only one way to find out though, something he planned to do as he finally made his way home from work, closing the door behind, free at last.

Not a moment after entering his house, he'd made his way to the laundry room, already feeling hopeful as he heard noises coming from underneath the pile of clothes. 'Jackpot', he thought, rushing over and reaching in, lifting the cage, not even bothering to pull his clothes off before heading over to his room. Why his bedroom? Well, that was one place he knew for -sure- there were no mouse holes or ways to escape, just in case this mouse was even cleverer than he gave it credit for!

Once in his room, the canine sat down on his bed, setting down the cage next to him as he heard...was that a voice? Curiously, he'd pull his clothes from off of the cage, setting them aside and finding quite a shocking sight to behold! There, gnawing on the bars for the opposite side of the cage, was a mouse all right, but...a mouse with clothes on?

"Well, I certainly can't say I expected -this-..." The Samoyed said, the little mouse giving a squeak before turning around in a huff, walking along the floor of the cage, and pointing an accusing finger up at him.

"You! You did this! Let me go at once! I demand it! I am a proper lady and you will not treat me with such disrespect!"

Well, he couldn't argue with the lady part...she certainly had quite the shrill voice, but her clothes suggested more of a tomboy than anything. That and the sassy attitude, especially aimed at someone so many times her size...

"Uhh...I'm not sure if you're aware of how this works, but...I caught you. You're trapped in a cage, and-"

"You think I give two shits about that?! You let me out this instance! You don't know who you're messing with, fuzzball!!"

The canine opened his mouth, only to shut it again a moment later. There wasn't going to be very much "talking" going on here, he imagined, not that he'd expected as much, thinking he had caught an ordinary mouse, after all. He'd just shake his head and sigh.

"Fine, fine, I'll take you downstairs and we can let you go outside then."

At that, the mouse seemed to...deflate, somewhat. The outside? She'd seen it a few times from the window...and well, it wasn't anywhere she wanted to go. She was an indoor mouse! A house mouse! The animals would tear her apart outside! She'd clear her throat and assume a straighter posture, trying to keep the rising fear from her throat.

"W-well hang on now...perhaps I was a little bit hasty in my accusations. There's no need to go -that- far...I mean, the outside, gross, it's so yucky, you know? Surely there are -better- places to let me go, like, say...back in the other room where you found me?"

The Samoyed would pause, blinking as he stared down at the mouse. While he liked to think of himself as a nice guy, well...biologically, his kind were -quite- good at sniffing out fear, and given the subtle movements of her body, the slight twitches of her tail, well...it wasn't exactly hard for him to figure it out! As he realized this, a slight grin came to his lips.

"Oh? So you're saying you'd prefer -not- to go outside, hmm?"

"Well...well -obviously-! Like I said, it's gross! Why would I want to go -there-??"

Just as he figured...he couldn't just let this mouse -leave- though, could he? What was going to stop her from just eating his food all over again? No, no, he'd gone through all the effort of catching her, he was going to get something as recompense, damn it!

"Fine, fine! I won't let you outside then...on one condition, of course. You're going to do something for me."

The mouse girl put a hand on her hip, giving the dog a skeptical look.

"Say what? What exactly would that be? I'd like to point out that I'm not exactly built to help with chores, dummy. What, you want me to clean? Not going to be very fast. Maybe you want me to do some kind of little dance for you, hah!"

The canine smiled, his tail giving a slight wag as he shook his head, speaking simply.

"No, no. You're going to fuck me. Or, more accurately, I'm going to fuck -you-."

The mouse gave a little squeaky cough, stumbling in place and falling down on her rear. She didn't know what she expected to hear, but it wasn't -that-.

"YOU WANT ME TO WHAT?!"

"Boy, for such a little thing you sure have a noisy voice! You heard me, do I need to repeat myself? I'm going to fu-"

"No, NO! Don't even say it again!" The mouse stood up and approached the cage bars, grasping them with her ire rekindled once more. "Even if I -wanted- to do that, are you blind?! Do you not see we have a problem with -size- here?! Your -finger- is probably as tall as me, nevermind...nevermind -that-!"

"Oh, haha...don't worry about that, we'll figure something out! Trust me, I'm well aware of your size, and plus, if I planned to do something lethal, would I have bothered asking?"

The mouse gave a huff, punching the cage as she turned around, crossing her arms. Her tail flickered irritably as she thought it over. Going outside was almost assuredly a death sentence...she had no idea how to live out there, not even counting the many predators who'd eat her for lunch. She was already caught by some dim-witted dog, how would she ever avoid being caught by a fox or a falcon out there? It didn't exactly leave her with many options...and as much as she hated to admit it, a sure-fire death was less appealing than...whatever this idiot dog had planned. She'd turn around, looking up at that big, dopey expression on his face. She'd make him pay for this, oh she'd make him pay...

"Grr...f-fine...fine! I'll do it! You big furry asshole! You'll let me go -after- that though, no questions asked!"

"Right, right! Hah...no questions asked. That said..." The canine reached over, pulling open the spring latch on the cage, his other hand reaching in and grasping her little body. He was surprised to notice she wasn't fighting him or trying to get away. She must be a mouse of her word! How honorable...

Lifting the mouse up, He'd set her down on his palm, watching her get to her knees as she stared up at him. Her face was as defiant as ever, but he could tell she was still shaking somewhat despite that.

"Now then...we won't be getting very far if you're sitting there with your clothes on, so...why don't you go ahead and strip down~?"

She'd glower up at him, huffing again. "You're nothing but a filthy dog..."

She did stand up, however, taking off the clasps of her little dress. Pulling it up and over her head, she was left in only a pair of neat little overalls. Unclasping each hook, she'd let the fabric fall, tossing down her dress as well, left standing before him naked...and boy was he surprised!

The canine, squinting a bit, would feel his tail lift in surprise as he saw...a sheathe and balls! Despite what he'd assumed, it looked like...-she- was actually a -he-!

"What's wrong, fucko? Never seen a girl -packing- before? Well here she is!"

It took all the dog's will not to make a pun there that he was so, -so- sorely tempted to make.* He managed to keep it together though, only then looking up from her crotch and seeing the smirk on her face. She must think that being the same gender as him would deter him...boy was -she- in for a surprise!

"Why...you look positively lovely, my dear~"

*(Up, far up in the skies and amidst their written universe, the voice of the almighty would echo out a single tone. "heh".)

This here is where our story takes a slight divergent path. If you're the type who enjoys more reasonable storylines and biology, continue reading path A. If however you can't be bothered with any of that nonsense, skip to path B, located down at the next line break. That said, onto path A.

"I look...wha? But I thought-"

"You thought I'd be turned off by your little dangler there? Please, what do you take me for! I think you look -just- as tasty as ever~"

With that, and even amidst her complaints, the canine would lean his head right up close to her. Opening his maw slightly, he'd push out his large, floppy, canine tongue, pressing the warm, wet flesh with a "Squelch~" to her feet, before slowly, oh-so-slowly, dragging that thick tongue of his upwards, along her legs, up along those two fuzzy balls of hers and along her sheathe, his lick going in one constant stroke, up past her flat little chest, before hitting her chin and face, utterly -soaking- her in warm drool before flicking up past her head. She'd be standing there, stock still, her fur matted down as excess drool dripped off of her arms.

"U...Ugh!! Disgusting! Pleh, what the hell was -that- for??"

"What?~ Your body certainly doesn't seem to be complaining, hmm?"

She'd look down at that, noticing that, well...he wasn't wrong! Her sheathe had stiffened up, and from the entrance her own thin pink length had begun to slide free, into the warm goo that still covered her body, giving and shudder as she'd cover herself up with her hands.

"That...that means nothing! Don't go reading into things you can't understand!"

"Oh I understand -plenty-, little mousie~ And what I'm getting from this is that you like warm things rubbing against you..." He'd pause, seeing the red in her little cheeks brighten, smirking all the more. "I knew it...and since -that's- the case, I've got something -nice- and warm for you to rub against!"

Before she could argue, he'd tilt his hand and close his paw around her, holding her firmly and smushing the saliva into her front all the deeper. His other hand, reaching down, grasped his zipper and tugged it down, his hand reaching into his pants before pulling out his -own- package! Opening his hand, he'd let her slip free, watching her flail before she'd fall down landing with a "whump" onto his big balls like two heavy beanbag chairs, her flailing arms grasping ahead...before she'd push back, realizing what the thick fuzzy log she'd grasped -was-.

"G-GAH! T-that's...hah...w-why does it have to be so...s-so..." The poor girl, she couldn't even comprehend it, actually being up this close to a cock and balls -this- massive! She'd look down, feeling the balls underneath her audibly give a little "slosh" from her movements, as she'd stare up at that intimidating, fuzzy tower of his. What could she say? What could -anyone- say in this instance?

"What's wrong? Dog got your tongue?~ Don't be shy now...here, let's go and get you two acquainted, hmm?~ " As he said this, he'd reach his hand down, grasping his sheathe in between two fingers. As his other hand reached for her, she'd begin scooting back along his balls, trying to get away, but that was -exactly- what he wanted. As she'd shift back further, he'd lower his sheathe between his legs to angle it towards her, and then, right when she was at the right height, his free hand went behind her in a snap, pushing on her back sharply! He heard a little "squeak" as her body and head were knocked forwards, the little mouse ending up face-first against the circular tip of his sheathe!

"M-mhfff! Hmff!" As her little hands grasped that furry log, she'd move her head backwards, only for the canine's finger to press at the back of her head, keeping her face and lips pressed up against the sleek black flesh right around his sheathe-hole.

"Come on now, don't be shy...give him a big kiss, why don't you?~ You're so good at nibbling all my food, why don't you give something -else- a try, hmm?"

As she struggled in vain to move her head back, the movements were, so to say, getting the pup quite turned on! Enough so that thick precum began to ooze from his sheathe-hole and against her little face, enough that her head became glazed in a sleek coating of the stuff, excess dribbling off of her chin and onto her chest and cock. While he couldn't see it, said little cock had grown -quite- a bit more by this point, twitching away a surprising amount for someone who had been so against all this~.

As if it hadn't been bad enough, the Samoyed decided, well...why not go even further? With a grin and a harder push on the back of her head, he'd watch as the little mouse's head stretched his fleshy sheathe-hole open, pushing it right inside!

The little mouse's head was beginning to spin, unable to fully handle everything going on around her. Everything from the neck up was surrounded by hot pink flesh, flesh that squished and squeezed around her, her ears being assaulted by a symphony of wet squirts and squishes from the shifting flesh. She felt pretty glad she'd taken a breath when she had...otherwise she'd be breathing all of this in! The canine's body, as if reading her mind, was reacting -quite- strongly to something rubbing around and teasing the inside of the sheathe. The mouse would see the flesh just ahead shifting and squishing open as it spread, as -something- approached her...it was bright red and tapered at the tip, leaving very little suspense as to what it could be!

She was about to get a -very- personal meeting with that thick cock, however, as the mouse girl felt her torso and lower body being lifted right up! No sooner had she been lifted, then she'd feel her shoulders pressing right against the sleek black entrance of that sheathe, the malleable flesh stretching to accommodate her as she began to slide bodily down into the canine's sheathe!

From outside, he would watch with a wicked grin as she sank down further still, the canine more than a little turned on as he saw the lump of the mouse-girl moving lower along his sheathe, the bulge becoming all the more prominent as she ended up riiight alongside his still hidden cock! Boy was she ever writhing about, too! Poor girl must have really wanted to escape!

He wouldn't be wrong, either. Inside of that sheathe, the poor mouse's senses were going into overdrive! Having run out of air, she'd had to take a new, fresh breathe...and as a result the air she breathed in was -ripe- with the musky scent one could only expect from pre that'd been sat marinating against a hot cock for so long! Speaking of cock, that thing was -huge-, pressed against her front as the tight confines of the sheathe force her arms and legs to wrap around it. She cursed herself as she felt her rigid little cock twitching like mad against that hot flesh, a pleasure she couldn't say no to!

From outside, the canine spoke up once again as he looked down at the hearty lump in his sheathe.

"So, how do you like it?~ Is it nice and cozy down there, hmm? Getting yourself nice and well acquainted?~"

He couldn't hear her response, but her little attempts at flailing spoke volumes to him~. As the canine leaned back, he'd wrap his hand firmly around his sheathe, beginning to stroke that fat, fuzzy tube of his in slow, direct motions, feeling as the mouse girl not only had hot, fleshy sheathe interior rubbing along her back, but a fat canine cock being ground against her front!

From within, she could tell -exactly- how hard he was getting...it was rather hard not to feel it! The cock seemed to gain in length and girth, tightening to already cramped space she resided in as the canine's tapered tip pushed out of his sheathe...followed by inches of cock! He felt like he could have kept her in there forever, and he might well have done just that had his knot not decided to start growing just a little bit!

As that big, fleshy bulb grew in size, the mouse's feet would be pushed out from the sheathe, followed by her legs, and hips...continuing until, with a wet "plorp~" the canine's sheathe pulled back fully around his plump knot, leaving her gasping for breath as she lay across a cock that was longer than -she- was! It pulsed dimly, and as she coughed up precum, gasping for air, she pushed herself up from that shaft, sitting upright as thick strings of precum still clung and connected in random places from her ears down to her twitching, rigid cock.

"Y-you're...you're nothing..but a f-filthy-"

"Ah ah ah ah!" The canine interjected, placing his finger up against her lips. "That's -quite- enough out of you I'd say! If you just keep running your mouth, how will you ever get me to cum?~"

"G-get you to cum?!" She'd say in stark outrage, pushing his finger aside.." How am I supposed to do -anything- with something this big?!"

The canine would only grin at her as his hand wrapped around the pre-soaked gal all over again, lifting her up before he'd smush her right against his shaft, which by now was standing straight upright and -fully- erect.

"I guess you'd better try using that tongue for something other than running your mouth, hmm?"

Without another word, the canine began to grind the mouse up and down along his shaft, deliberately pressing her body, and especially her rigid cock, up alongside his comparatively -massive- cockflesh. He'd go right up to the tip, and then down until her little rump bumped into his knot, his other hand gripped firmly underneath his knot, not only to keep his length straight but to further arouse himself!

The mouse, well...she hated this! At least, that's what she kept -telling- herself. Her cock was an entirely other story...even from rubbing alone it felt like it was going to burst! What was worse, she couldn't get out of her head these images of her balls unloading all over this massive pillar of meat. She'd lick her lips faintly as her arms encircled that massive shaft, her tongue coming out as she licked and dragged it along the shaft, hardly having to move her head or tongue given that he was pulling her up and down against the flesh anyways!

The taste...oh god it made her knees quiver. The potent musk of the shaft, the way his glazed pre would slide along and stick to her tongue...why couldn't she say no to it? Why was her mind telling her to lick all the more? The canine sure seemed to be enjoying himself, at any rate! -His- tongue was out too, hanging freely as the canine panted away, dragging the poor mouse up and down almost as if he were stroking himself off by himself!

The mouse though...gods she had gotten so lost in the taste, she'd almost forgotten the ultimate -conclusion- to something like this! It dawned on her, however, as the area her rear kept hitting seemed to be getting, well...bigger, and warmer, too. His knot was slowly and steadily growing, spreading wider the closer that canine got to a climax. His balls were steadily tensing up as well, the canine only remembering what he'd planned as he felt himself getting closer to the brink. With a ragged panting gasp, He would grin widely, speaking once more.

"Better..h-hold your breath~"

She didn't even think to question it. She didn't know -what- he had planned, all she knew was that time spent complaining would be less time available to take in a good lungful of air. Just as she pulled back, breathing in deeply, she'd be pushed higher up along that shaft than she'd ever been yet, as something pressed against the back of her head. It was...his finger? Quirking her brows in confusion, she'd suddenly be forced down, her mouth forced open as the thinner, tapered tip of that canine cock was pushed into her mouth, spreading her lips and cheeks both! No, he couldn't be...surely he wasn't planning to...!

Her worries came to full fruition however, and became confirmed as the canine seemed to relax for a moment, that cock thickening against her front before the tip would absolutely -explode- with thick, musky canine cum! It was gloppy and hot, so much so that to a little gal like herself it had the consistency of a hot pudding! The force of it all was so harsh it -would- have pushed her head back had he not been holding it in place, but instead, she'd feel that seed gushing past her lips, along with a -most- peculiar sensation of her throat being forced open, his seed through sheer pressure alone forcing its way down her throat and into her little stomach!

Each pulse followed shortly on the tail end of the last, fresh spurts of hot cum overflowing the little mouse's mouth, her belly visibly distending just a little bit with each new partial load it was forced to take, but her trails were -far- from over! That cum was forcing its way into her mouth so hard it even pushed up her little nose from behind! She expected some kind of pain or discomfort as seed rushed through her sinuses and out again, but she was shocked to find that, other than feeling -incredibly- lewd, it wasn't altogether unpleasant!

As the next pulse of cum shot up, making that shaft damn-near vibrate against her front, She'd feel her own shaft do the same, disbelief evident in her eyes as she began to cum herself, all just from being forced to drink down these massive loads of cum! Her shaft twitched and spurted wildly, painting all along the dog's cock, but only for a moment, as the canine and mouse could -both- feel the mouse's stomach reaching its limit with how full it could be, the dog letting go of her head and letting her slide down until her rump sat on his knot, now at least twice as wide as before!

His seed continued to come as hard as ever, but without a mouth in the way, it was free to fire into the air, arcing before raining down over his shaft, his hands, and most importantly, the mouse girl! She felt so overwhelmed by all of this, that she even lost her grip, falling back and landing with her back on his balls, moaning softly as she felt them churning and tensing with each load that now rained over her front, making her fur stark white as pools of thick cum slopped lazily off the sides of her body, her own shaft still spurting freely upwards but utterly hidden amidst the flow!

Finally, after what seemed like a full, solid minute of climax, The canine seemed to be slowing down, his shaft's pulses going from harsh spurts to a steady drool of cum along that thick, veiny length. The mouse girl could only whimper softly under it all, watching as that cock lost some of its firmness, slouching down until the thick, oozing length laid across her front. Had someone come into the room right then, they might have had a hard time even -seeing- the mouse, frankly!

A little time went by with both parties panting and recovering from their ordeal, as the canine tilted his head, smirking down at the barely visible mouse still smushed between his soft cock and heavy balls.

"So, what'd you think?~"

The mouse mumbled, barely able to be heard.

"I'm sorry? You'll have to speak up!"

Again the mouse spoke, this time more clear. Her voice came out faint and resigned, saying only a single word.

"More..."

The canine blinked in surprise...before a grin would slowly creep up on his cheeks. Oh, this was going to be a -fun- night indeed~

Well, wasn't -that- an adventure! I certainly hope you enjoyed the ride! Then again, maybe you didn't actually read it. Maybe you're just someone looking for path "B". Or maybe you're just a curious little scamp looking for mischief. Well fine then, I suppose I did promise a path "B", didn't I? Well, here it is, then. The alternate route. The split path. B path. You should be ashamed of yourself, and may Dog have mercy on your soul.

"I look...wha? But I thought-"

"You thought I'd be turned off by your little dangler there? Please, what do you take me for! I think you look -just- as tasty as ever~"

The mouse stared at him in shock. Truthfully, she -had- hoped he would have been dissuaded by that...nevertheless, it mattered not, as there was still the whole issue of size difference to be accounted for.

"Well...well it doesn't matter! Look how small I am, we can't -actually- do anything! You're just living in a dream-...w-wait, what are you doing?!"

The pup only grinned at her, tilting his head to the side.

"What? I'm just getting ready, what's wrong with that?"

As she had been talking, the canine had been tugging open his pants...and pulling -out- a rather massive sheathe and balls, especially compared to a little mouse such as herself! She didn't even know what to say, staring at something so stupidly big like that...until the dog spoke out again.

"You ever heard of sounding, little mousie?~"

She'd look up at him, glaring. "I'm going to guess it's something disgusting that only a dog would do..."

He couldn't help but laugh at that, shaking his head. "Well, granted, it's something not -many- would do! But, well, the thing is...if we're going to do anything at all, I'm going to need to stiffen up...and by the looks of it, -you- have exactly what I need..."

She didn't even have time to squeak out an answer before the big canine made his move. He'd pulled his thick sheathe downwards, exposing to the open air both his soft, yet-to-grow caninehood, along with the scent of pre in the air~ It wasn't much for him, but given how close he was holding her to his crotch, it was quite an assault on the senses! She wished she could say it was unpleasant, or filthy, but...that sexual, warm scent...it was making her feel things she'd -really- rather not feel!

However, she soon felt a bit of a...tugging...behind her as the canine pinched his fingers on something... her tail! She snapped out of her momentary trance, shocked as she saw him holding firmly onto it with his fingers!

"W-what are you doing back there?! Hey, let it g-ghOOomy god -what-?!!"

In the next moment, the little mouse felt a combination of shock and revulsion as she both saw and felt her tail tip being pushed down into the canine's urethra! So this was "sounding", and he was doing it with her body!

"Th-that's disgusting!! Take it out, take it out!" Yet despite the mouse's urgency, the canine only chuckle, not only ignoring her pleas put pushing her tail in deeper still!

"Why would I...do that? I -love- the feeling of it wriggling around in there~ Frankly, I want even more!"

Given how rapidly thick pre was beginning to both push around and past the mouse's tail, the canine fully intended to stand by those words, too. Inch by inch, he'd push more of her writhing tail down into his shaft, the faintest bulge along the underside of his canine cock visible from this. He pushed her until she had gone right down to the rump, seated firmly as her entire smooth, flickering tail was stuck deep in the canine's shaft.

"Fuck that's good...you know your way with a tail, I tell you~"

"Don't...don't speak to me!" The mouse exclaimed, quite aware of the feeling of warm precum not only on her tail but oozing all over her fuzzy rump and thighs. "You're a disgusting dog! Disgusting!"

"Boy, you sure do complain a lot, don't you? Wait...I think I get it..."

"It's about time!!"

"You want something inside of -yourself-, right? Not the other way around!"

"What?! I meant no such-!" Although her words were cut off as the canine began to lift her back up, her tail thrashing madder than ever as he did, up until it was able to finally flick free, splattering warm canine precum all around. The mouse was winding up to berate him all over again about how the stink would never get out of her tail, when...she felt it. She felt "it" right up against her little rump.

"Is...Is that..."

"It's exactly what you think it is~"

The mouse looked down, her eyes going wide as she saw the full length of the canine's shaft below her. It was fully erect, twitching lightly and oozing precum from the tip, she could feel it doing so right against her little hole, in fact! She looked back up at him with an incredulous look, but the canine had all but finished talking. With a squeak, she felt his hand grasp tighter around her body, as he'd push her downwards against that tapered tip of his!

"S-stop! Stop! It's not going to...t-to fit!"

The way she resisted, the little thrashing motions she made, it only excited the male further still! The mouse never could have thought what was about to happen could even be true, but there was no denying the utter sense of simultaneous stretching and filling as her little tailhole slowly spread open, to make way for the rigid tip pushing inside of her back door!

The utter stretching that she underwent was...it was difficult to even comprehend! An inch sliding in, followed quickly by another, and yet another...this went well beyond her cute little colon, she could already feel her very insides forced to stretch wider to accommodate his girth, as she tried to comprehend how she was even alive. How had she not split? Was she already dead and hadn't realized it? She could barely twitch her legs...and yet she could feel -everything- inside of her!

"Woof~...you're tighter than I thought, little mouse! I might just have to keep you~"

The mouse's eyes were half-lidded, and she could feel drool escaping her lips, but her body...she felt no control over it at all! What's more, as she looked down, she could quite easily -see- the bulge in her body, and watch it traveling up! It was surreal, to be honest. It was like she were watching her own body slowly turn into a condom, or some kind of furry fleshlight for this horny beast, his strong grip keeping her from freeing herself.

At least, the mouse -thought- that was as wild as it could get...oh how naïve she was! With a sudden motion, the canine pulled her down in a sort of half-thrust, the mouse feeling what she could only describe as "her insides being forced straight", everything inside of her pushed into one direction from that cock of his! What's more, as he pulled back, they didn't go back to normal...only being made straighter still when he pushed in again, and again, and again~ In only a short few thrusts, her belly and front showed a sinful bulge of canine cock, the mouse looking down with a little squeak as a bulge traveled up along the underside of the shaft.

"W-what's...ooggh~"

With that bulge reaching the canine's cocktip, warm, gooey heat blossomed within her body, a bump rising near her chest as a burst of canine precum surged out, flooding through her little body. It came out so thick and fast she felt it push even further than the cock had...along with a curious feeling of suddenly being...very full?

"A-agggh, n-no, NO! It's...it's in my stomach!! You're too deep, p-pull out, pull out!"

"What are you talking about, mousie~?"

Mid-sentence, the canine, with his mouse friend stuck firmly on his cock, took his hand and placed his palm onto the top of her head. With an abrupt -shove-, he'd push her down the deepest yet, her insides fully straightening out as the bottom of the mouse's very stomach was forced open, only for that twitching, hot canine tip to push up -inside- of it! The force of the penetration even caused his pre to be pushed up as well, shooting up the mouse's throat and abruptly flooding her mouth with what had to be the muskiest taste she'd -ever- experience.

"There...-now- it's in your stomach~"

"glk...glrrb..."

The mouse girl, understandably, couldn't respond. It wasn't terribly easy to say much when you had your entire body from ass to stomach filled to the brim with a cock as big as his! She was vaguely aware that she couldn't even feel her little buttcheeks touching anymore...they were being kept spread apart with her ass so utterly gaping from that shaft~.

If this dog had shown anything however, it's that he isn't one to wait around, or be "patient". No sooner had he stuffed her stomach full, that he'd grip firmly around the mouse's body, pulling her up and up...her stomach simultaneously feeling -very- empty, taking his cock halfway out before driving it right back in! He was -literally- using her like a living fleshlight, casually penetrating her entire body with his cock each hard, grinding tug that he made. The precum was no less messy either, as each shot either filled her stomach, only to be pushed out, or worse still, shot from his tip right -up- her throat, causing a brief spurt of the slick, gooey stuff to gush past her lips!

She could barely breathe, barely having time to take a gasp of hot, dog-pre scented air whenever he'd pull back, only to let out an abrupt squeak or moan when he'd fill her back up again. What probably shocked her even more was...she -liked- it. It'd taken some time, of course, to get over the initial incredulous feeling of being turned into a living toy like this, but the way her body was being so utterly stretched, the faint feeling of a thicker bump hitting her soft, fuzzy cheeks each full thrust, even his gloopy pre...she was actually getting turned on! Although, even as she felt her little cock stiffening and oozing pre of its own, and her squeaks of shock turning gradually to ones of bliss, she couldn't help but think about how he was doing all of this just for -himself-. He didn't seem to care one lick about -her- pleasure, she was just some 'thing', some toy for him to use as he saw fit.

What she probably hated the most was how that thought was turning her on even more.

"Ah, hah...I'm getting pretty worked up...you better hold on little mousie, I'm..ngh...I'm gonna tie you -real- good~"

Tie? What was that? Was he talking about some kind of bond-OH GODS.

"SQUEAK!"

With no preparation, no sense of ceremony or even a chance for her to get ready, she'd feel her already gaping ass stretch even -further- than before, something she didn't think was even possible, as the dog's base was pushing up and inside of her, much slower than any other part of his shaft, but -so- much more of a stretch! If she had an inkling of her wits about her, she'd probably be able to muse about how her ass was stretched so wide by now -another- mouse could have just up and stuck their head inside of her with the cock out of the way...

She felt every inch, every -centimeter- of his knot pushing inside of her tailhole, spreading it more, and more...along with the thought of pressure against the top of her stomach, something trying to push up! She writhed on his shaft, thinking that even with all these possibilities, this was -too- much. Far too much!

"S...stoop...I...I can't feel my-GLK!"

Alas, too little too late. With a hard thrust upwards, the canine had pushed the thickest part of his knot inside of her not-so-tight tailhole, her lower body and belly bulging from the girth~ His cocktip had actually pushed -past- her stomach, shooting right up her throat and bulging it as she tasted something on her tongue...his cock! He'd actually speared through her body, to the point that his tip was just resting on the back of her tongue. She hadn't planned on deep-throating anything at all today...never mind in -reverse-!

At this point, the dog finally let go of her, taking his hands away from her body...only, she didn't move. Being so utterly speared, her body was being held -completely- up by his cock alone, and other than her head, she was being held perfectly straight. Using just a single finger, the canine pushed her side, the mouse shuddering, feeling that massive shaft grinding against her inner walls from ass to throat as she was turned around, now forced to look up at her captor, her belly bulged enough from the knot she looked pregnant! She looked up at him, her cheeks red and face a scowl.

"Y-you...f-fucking idiot...y-you could have...killed...me!"

"Mhh...but I didn't, did I~? and now look, you're looking so pretty and...well fed~"

"Well fed?! I'm not well fed, I-blrf!"

Again, our poor little mouse was cut off. She'd felt the bulge moment before it arrived, trying to close her mouth in desperation, but to no avail. Her cheeks puffed out, like a squirrel storing her nuts, as thick, slimy dog precum pulsed into her mouth from that tip at the back of her throat! She even clasped her hands over her mouth, but precum still leaked free, and what's worse, she felt that gooey lubricant push backwards in an attempt to leave, going right up the back of her nose and out the front! While this didn't hurt her body, it -definitely- hurt her pride, especially as she had no way to swallow the pre in her mouth, forced to open it up as a heavy load of pre spilled forth and over her front, the mouse coughing and sniffling, her face an -utter- mess~.

"You don't call this well fed? Well, maybe I'll have to fix that, don't I?"

All she could was look up at him while fruitlessly wiping her mouth off, trying to clean the massive amounts of precum covering her face. She didn't even want to ask what he meant, she -knew- it was going to be utter filth.

As it turned out, she was right on the money. No sooner had he spoken, his hand had returned to her body, gripping her form firmly. His thumb pushed up against her chin, making her look straight up before he pulled her down even -harder- than before. Her sore rump ground past the base of his knot, kissing against his pre-slicked, fuzzy sheathe, all while that tip of his pushed just a little bit higher, grinding across her tongue in reverse and just touching the back of her teeth. It was the most obscene thing she had ever felt, more than anything she could have imagined! Having her mouth full of cock yet lips sealed tightly...what a ride!

The dog pulled her back up, keeping his knot firmly inside of her bloated body and jerking her little form up and down against his shaft in quick, shuddering motions. He was getting close, she could tell just by the way his length kept on twitching inside of her, but what's more, -she- was getting close too! She held herself back, not wanting to show even a hint that she was enjoying her abuse, this massive shaft grinding through her body from tongue to ass and pressed constantly against her pancake-flat prostate.

"Hah...ah...alright then...here we go....time to fill you up! Mice like cheese don't they? Haha, how about cream cheese?~"

The glower she shot his way went unseen as the canine tilted his head up, thighs tensing as he howled long and deep. She could feel his massive balls tensing and jerking up against her rump, this was it...he was about to cum! She thought, for a brief moment, that it'd at least be alright since his foul seed would just shoot out of her mouth, but alas, she had much to learn about just how perverse this canine could be.

She felt her body lifting slightly, his knot (was it even -bigger- now?) stretching her tailhole firmly, his tip going down back in her throat and down towards her belly. She looked down with her head free, expecting him to pull out, but right as his cocktip entered her stomach, he'd push forward again, making sure to miss her throat this time!

She watched in shocked awe as her chest pushed forwards, the outline of his thick canine shaft visible before her eyes, only seconds before the visible tapered tip rounded out, hot, -hot- dog cum pumping directly into her stomach! The sphere of seed grew further, warmth blossoming forth from it as her little stomach, already so full of dog cock was rapidly expanding with its seed. She didn't even get a chance to release it either! When that flowing seed inevitably rushed up the back of her throat and towards her mouth, she'd feel the dog's hand come down, fingers curling around her muzzle with his thumb pressed to her nose, a devious look on his face.

"Ah haha~ You're not going to, ngh...spill it, are you?~ That'd be rude!"

That cum just kept on flowing, every throb jerking her entire body, every pulse filling her growing stomach more by the second! The cum pushing up her throat even filled her mouth, her cheeks, her sinuses so completely, ensuring all she could taste or smell would be dog cum! It didn't just flow upwards either, that hot seed rushing down around his shaft and along her digestive track, even to the point that she felt it gushing down around his knot, yet unable to push past it! The poor little mouse girl's belly kept on growing and plumping out further, smooshing down over the canine' crotch, her body filling like some kind of furry condom, her poor stomach sloshing as it tried so hard to contain all of that seed! And all while he just watch with a grin, unloading shot after shot from those heavy canine balls of his and using her body as much as he willed it~.

A golf ball, tennis ball, naval orange, her poor belly continued to swell to take every juicy, sticky, thick shot of cum he pumped out, making her body swell and heat up with every shot~. How she wasn't dead from this was anyone's guess! She could feel herself slowly starting to black out from a lack of oxygen, and just as her belly was approaching the size of a cantaloupe, his orgasm would -finally- cease, and she'd feel her own shaft just begin, twitching violently and firing off spurts of her own comparatively small load over that canine crotch, her eyes rolling up as she passed out right as the bliss of climax overtook her!

"H-hah...there...now you're plenty full, hmm?~ Hey, why've you gone so limp? Finally given in to...er...whoopsie!"

The dog looked down at his captive, the poor, bloated, unconscious mouse, realizing he'd been keeping the poor girl from breathing this entire time! Well, if she was passed out, there was no need to keep teasing her, right? Letting go of her muzzle, the canine watched as that high-pressure liquid cum finally found an exit, his cum rocketing up and out of her little muzzle, gushing like a fountain from her little mouth and nose alike, making quite the mess! He wasn't a stranger to messes however, simply laying on his back and watching with amusement as his cum steadily coated her, his belly, his balls, everywhere she was draining frankly!

It took a solid minute before that flow ceased, the moue girl's own cum lost in the sheer deluge that now covered her body. His shaft was still inside of her, stood upright and mercifully keeping her head out of any pools of cum, away from drowning in his musky seed. Boy that'd be a way to go! Admittedly, he was relieved when he finally saw her chest starting to move again, a few shaky breathes pulled into her still unconscious form, her belly wobbling from every motion as it still held a fair amount of seed yet unspilled. The canine reached his hand over, giving her heavy belly a pat, making it jiggle as he twitched his hard length inside of her.

"It's a good thing you started breathing again, I don't think I'd be all that good at mouse CPR, haha~. Not to mention I would have had to pull out of you to do so, and your tight little body is just -too- good on my cock to do -that-. Oh look at me, talking to myself now...don't worry little mouse, you rest for now. I'll have a special surprise or twelve waiting for you when you wake up~"

Oh this was going to be a long night for sure...a long, -very- messy night.

THE END

Her squeaker's gonna be sore for -months-.