(F to M Saint Bernard)
(M to F Tibetan Mastiff)
Emily was a good elf. She loved every animal equally, with far more respect than humans would have. Which, of course, meant that having to play her magic on a dog had left her in a bad mood.
It was the human’s fault, all things considered. Only someone so conceited as a human would think that they could tame a wild animal, and breed out its aggressive behavior. And only a human would think that they could control a dog that was half their body weight.
“Omigosh, this really never happens!” The woman had yelled form across the park, too distracted by her phone to bother jogging over. “Don’t worry, I’ll get help… Huh?”
To her credit, it had taken her a remarkably short minute to notice that there was remarkably little blood around where the dog had attacked Emily—though not for lack of effort. The dumb thing’s jaws had become soft cotton, and its bites were as effective as a pillow fight.
Emily hadn’t given her much more time to react than that. She’d completed the dog’s shift into a plush; then turned the owner into a loud squeaker.
She held the two of them now, smirking at her own handiwork. It was a bittersweet victory—the dog wasn’t capable of understanding what had set it off. In a way, the human wasn’t either—how could she have understood that Emily had used magic to blend in with the crowd?
That didn’t exempt the human from being an imbecile; though, so she’d stay sentient inside her new cotton home. Emily gave the toy a squeak; then cast it over her shoulder for someone else to find.
Sadly, it wasn’t the first time Emily had to do this. Despite her efforts, this was becoming a more and more frequent occurrence, which meant that she’d have to take steps to avoid it. Not enjoying this park was simply out of the question, so that left one option: she’d need dogs of her own, as much to cover her own scent as to chase off anyone that’d sniff too close to her.
And, as luck would have it, fate was sending her first victim her way…
xXx
Annie was a good girl. She worked hard every day, and had even taken to jogging to try and lose weight. It was working too, she’d slimmed down plenty over the past few months—though her stubborn chest wasn’t affected by that.
Her chest and back were starting to ache again, so she slowed her pace to catch her breath. But instead of cooling off, her body started to feel hotter and hotter. She fanned at her face, sucking in lungfuls of air that only seemed to stoke the furnace in her chest.
“Confused?” A woman’s voice came from her left, and Annie nearly jumped out her skin.
A sound somewhere between a scream and a shout slipped from Annie’s throat, and she clapped her hands over her mouth. “I-I’m sorry! Don’t mind me!”
“That would be horribly irresponsible of me,” the stranger said, smiling oddly. Something about the expression was off, as though she was practicing how to make it. “I’m Emily.”
“Emily, huh?” Annie asked, glancing around the park, uneasy. “Well, it’s nice to meet you, but-”
Emily made a strange motion with her fingers, and Annie’s tongue swelled in her mouth.
“-Uh’m ackthewully wiff thum… whruh?” Annie blinked, crossing her eyes slightly. Her eyebrows furrowed; the hairs thickening with a light brown that blended nicely with her own blonde hair… For about a minute, before the hairs swept towards the top of her head and her ears.
“Sorry, I don’t particularly care about the details. See, I need a guard dog, and you’re my lucky volunteer.” Emily chuckled.
The words didn’t make any sense—but then again, neither did the sudden swelling of her nose. The cute button of her nose lifted and flattened, growing dark and moist. Annie squeaked in shock, recoiling back in horror, hands lifting to feel her changing face.
Only they weren’t hands any more, not entirely. Thick and shaggy hairs had covered most of them, save around her palms and fingertips. Those were darkening, thickening, swelling. As these new pads game in, her fingers began to pull back towards her wrists.
Annie’s new paws smacked against her cheeks, and she squealed in helpless horror. When she tried to pull them away, the skin on her face tugged out with them, drooping into heavy, white-furred jowls. She felt drool pool up within them, and instinctively shook her head.
The motion let her paws pop free, but also scattered her saliva wetly across the ground beneath her. Finally, she found her voice—though she wouldn’t have it much longer. “Whuth huppuhhnuhn!?” She growled, voice deepening in pitch.
“I could use a nice, big boy to keep me safe from the other dogs around here. And what responsible girl wouldn’t want a Saint Bernard to keep around?” Emily chuckled.
Tears dewed at Annie’s eyes, both from fear and from the discomfort of her sinuses stretching. As they streaked down her cheeks, black fur sprouted like grass from her face. “Buht uh duhn wahnuhh…” She whined pitifully.
It was almost comically petulant, but what other reply did she have? She was still trying to fathom how this was even possible.
Annie whined as her neck started to stiffen, forcing her canine head upwards. At the same time, her shoulders and hips creaked. She staggered a few steps forward before dropping onto her heavy forepaws.
The shock of impact traveled up her arms, sending a wave of fur up to her shoulders. At the same time, her slender forearms bulged, gaining bulk befitting her breed. She looked down to them in fear, then let out a humiliated whine as her clothes slipped from her form.
It was like they’d turned to water, slickly sliding up around her body to her neck, snugly tightening around her throat and flowing into a long, liquid leash. As it grew longer, it thickened to a dark black leather, which Emily snaked her fingers around.
Annie could see the pleasure in the woman’s gaze, and something about it made her break eye contact with her. She looked down to her chest, watching in horror as her heavy breasts pulled back into her barreling chest.
As they faded, a new sight assaulted the Saint-Bernard-to-be: an unmistakably red phallus. She had no idea how she’d missed its growth, but now that she could see it, her brain was bowled over by bliss. It was a pleasure she’d never felt in her life, and as such she was completely unprepared.
“Oh? You seem surprised. Did you not hear me call you a good boy?” Emily tutted, then laughed. “That’s actually quite good. It means I won’t need to do much to make you my dumb dog.”
“D-duhm!?” Annie slavered, trying to look at the witch but finding herself curiously unable to look away from her new shaft. Something about it was… She didn’t know how to describe it, other than ‘good.’
“Dumb. Drooling. Protective. Loving. I could go on for hours, but there’s not much point to it. You won’t remember any of this in a bit, anyways.” Emily laughed.
Annie wanted to deny what she was saying, but a definite fog was settling in over her thoughts. Just trying to concentrate was like fighting against the tide, and bit by bit her old world eroded away.
Her butt lifted instinctively as a tail stretched from her backside, and fur raced across her body to cover it in heavy, soft white hairs. They caught the air so nicely that Annie couldn’t help but keep swishing it, even as she rolled over onto her left side numbly.
The reason why didn’t cross her mind until she realized how her body had curled. Her canine form was much more flexible than her human body, and her hot breath kissed against her new cockhead, which twitched eagerly.
A droplet of precum dripped from her tip, and Annie could swear she saw a reflection of her college in it. Then it dripped to the ground, and the recognition faded. Something about it upset her, but she didn’t know what.
“Hyyy dun wrrrunn…” She whimpered, forming sounds… words… sounds with her mouth that she wasn’t fully capable of understanding. It was getting so much harder to think, and so much easier to think about wrapping her warm, wet muzzle around her new cock.
Her new cock? His? Annie shook her head, her ears stretching to catch the air, loudly thumping against her cheeks.
“What’s that? I’m sorry, but I’ve no idea what you’re saying,” Emily crooned.
Annie didn’t know either. He looked up pleadingly to the woman, begging for some sort of answer.
“Aw, but even I can tell my good boy is confused. Don’t worry, you’ll be right at home with your new owner. Just look back down and suck that old life of yours away.”
The words didn’t make much sense to Annie, but he still dipped her head towards his shaft, giving it a curious lick. It was saltier than he’d expected, and so, so much more pleasurable than he’d have dreamed.
At the same time, he could feel the dog brain taking over his own, and a half-formed thought lodged itself in his mind. “Khhyrruh! Thumwrrun huhhuhhUHLP!” His protest was cut off as his hips pumped needily, plugging his mouth with his own dick.
His eyes rolled in his head, and his cheeks puffed as he tried to bark out a plea for help. “Khhyyy… Khhmlp… kkhhUHhLK! Mhhghhlmm…” The words faded into stupid canine whines of pleasure, and his legs kicked as his transformation twisted him to his new body.
His toes curled, then twitched. They wouldn’t need to be anything close to as dexterous as they had been, not anymore. His feet sloped, forcing him to walk on the balls of his feet, losing the bipedal balance he’d sported minutes ago. He’d never be able to walk on two legs again.
“That’s a good boy. My big, strong boy. ‘Thor’ sounds like a good fit, doesn’t it?”
The word was simple and blunt, and that helped lodge it in his brain even easier. Annhr pumped his hips harder, nose brushing wetly against his balls as he pleasured himself. He could feel his knot swelling, and Thonnr’s thoughts crawled to a halt, savoring this last moment.
Then he came, and the last of a woman who’d done nothing wrong spattered Thor’s muzzle. He gulped it down, then looked tiredly up to his new master.
“That’s a good boy,” she chuckled, looking down and scratching him behind his ears. It felt good, and his tongue lolled from his mouth in insensate pleasure… Only for his nose to twitch at a new scent.
His ears lifted, and he rolled to all fours. His owner smiled, and that made him wag his tail.
“What’s the matter, boy? Smell something? Gonna protect your new mommy?” Emily called, only for her smile to fade as a person approached.
xXx
Kale was all right, for a human. Which, on the cosmic scale of things, meant that he was positively stellar. He paid his taxes on time, went to work more or less on time, and had horrible spending habits. He was also too friendly for his own good, and had a soft spot for dogs.
“Hi there!” He called out to the strange woman, beaming at the sight of her Saint Bernard. The dog was a cute one, and he didn’t object as it started to paw at him. “Haha, he’s a friendly one, isn’t he?”
“He is.” The woman glanced down at her dog with an oddly suspicious look. “Strange, that. I thought he was going to be a good guard dog.”
“And keep people like me away? Ouch,” Kale laughed. “Don’t worry, I’m not like that, I swear.”
“Oh?”
Kale could practically feel the ice radiating off of her. But he’d approached her for a reason, and he’d already committed so far. “Yeah, see, I’m looking for someone. You see a blonde girl jogging by here?”
Her eyes widened slightly; then narrowed in thought. “Perhaps. Who,” she paused, eyes flitting towards her dog, “are you?”
“Me? Kale,” he rubbed the Saint Bernard’s cheeks as it redoubled his attempts to lick his face. “And who’re both of you?”
The woman stayed quiet for a moment longer, then clearly something clicked, because she laughed aloud. “Oh, how wonderful! This is Thor, I’m Emily, and you’re quite mistaken.”
Kale blinked, confused. “About what? Did you not see Annie?” He asked.
“Ah, so that was her name,” mused Emily, “and it’s actually quite the opposite. You see, I have run into her.”
“Okay? So what’s the mistake?” Kale looked around, a shiver of apprehension bringing with it a wave of paranoia.
“You’re mistaken about who you are, Artemis.” Emily smiled, and let go of her dog’s leash.
Kale didn’t have time to react before he was bowled over by the dog, who seemed too eager to give him a tongue bath. “Whoa! Easy boy!” He tried to push against Thor, but the strength was fading from his arms. He looked at them in shock, watching as they grew slim and feminine.
“What the hell!?” He tried to move, but the dog was pinning him fast in place beneath his furry body. Kale looked up, blinking Thor’s drool from his eyes, trying to focus on Emily. “Control your dog!”
“I intend to. What was she to you? Judging from how excited Thor is, that just might have been love. It’s cute, really.” Emily chuckled, as though she was making any sense at all.
Kale’s response died on his lips as a coolness washed over his body. He looked down to see his clothes were flowing up his body, leaving his naked form trapped between the sidewalk and an excited, heavy Saint Bernard. He watched, stunned, as they twisted into a leash that matched the other dog’s.
“And really, I am good at heart. What kind of monster would I be to break you up?” She tutted.
Kale shuddered as a heat started to build within his chest. For some reason, it felt good to have this dog push down against him, to feel his heavy furry body against Kale’s chest… Kale looked down, choking in surprise at the sight of a pair of soft, sensitive breasts budding on his chest. The sight was stolen from him as Thor licked at him hungrily, and he sputtered.
“Ph-ffth… What are you doing to me?” His voice lifted in pitch, to a sultry, soft tone. “What did you do to Annie!?”
“Something very similar that I’m going to do to you. It doesn’t matter if you don’t recognize him. He certainly recognizes you.”
Kale was a smart, imaginative guy, but even this took him off-guard. He looked to the stupidly smiling face of the dog above him, eyes going wide. “Annie!? No way is-HULMPH!”
Thor’s tongue shoved its way into his mouth, the dog’s fuzzy jowls pressed against Kale’s cheeks. He squeezed his eyes shut at the intrusion, trying not to focus on how strangely good it felt to kiss the animal, or how familiar it was.
“Well, she’s not Annie anymore. She’s Thor now. Just like you’ll be Artemis. Isn’t that lovely?” Emily circled them predatorily, clearly savoring her handiwork.
Thoughts of denial and desperate bargains fled Kale’s mind as the dog above him thrust against his crotch, Thor’s hot tip prodding between Kale’s shaft and balls… And somehow making purchase. With each pump of the dog’s hips, his hot member started to push deeper and deeper into Kale’s body.
The man’s balls pulled into himself with a sharp sensation followed by a warm rush of electric pleasure that made his knees weak. His cock dwindled in the most sensual way possible, leaving him shuddering in orgasmic ecstasy.
Kale wailed out a moan of pleasure, wrapping his arms around the Saint Bernard’s body, sinking his fingers into his fur. The sound was muffled by Thor’s tongue, but it seemed the dog was savoring it.
Thor pulled his head back and barked proudly, spraying his former boyfriend’s face with drool. “HAROOF! GROOF!”
Then he pistoned his hips forward, into the newly female form beneath him.
“AaaaAHAHRUFF!” Kale’s heard jerked forward as she barked, and a blush crept across her smooth cheeks. She clenched onto Thor tighter, struggling to… What? Pull free? Push him deeper? In the end, it didn’t matter. No matter what she wanted, he wanted her more.
Thor started to hump, hips moving faster and faster, coaxing a midnight black wave of fur from the woman beneath him. This only excited him more, and soon even his jowls were swaying with how hard he was moving.
Kale kicked, more in pleasure than distress. Somehow she was growing beneath Thor, lifting him slightly even though all his weight was on her body. “H-how?”
“Well, much as I might like to have a matching set of puppies, I thought you’d be much better off as a Tibetan. After all, Thor here’s a bit rowdy, so he’ll need a bitch who can keep up.”
“A-a Tibetan what!?” Kale squirmed, shuddering as more fur carpeted in her in dense warmth. Static clung between her and Thor, and the feeling of their fur rubbing against her nipples was overwhelming—and that was before she grew another six. “AaaAAAHHWROO!”
“A Tibetan Mastiff, sweetheart. Not a dog person? Don’t worry, that doesn’t matter.” Emily laughed.
The fur had crept its way up to Kale’s collar, thickening into a dense mane of fluff. A shudder passed through her body as his arms and legs locked into a new position, making her current pose feel awkward and unnatural.
Her arms and legs were hanging at awkward angles, now less wrapped around Thor than they were pressed against him, trapped by their new range of motion. She pawed at the big dog’s chest, a distinctly canine whine slipping from her throat.
“Up, boy,” Emily commanded, and with a strained whimper, Thor pulled off of Kale’s shuddering, furry body.
Kale tried to catch her breath, but everything was making her so damned hot. She looked up to the witch pleadingly, then rolled onto all fours. “Whhuh… Why?”
“Well, I had to let you get comfortable. And maybe I’m a sucker for happy endings.” Emily tapped the ground before Kale, and as she lifted her hand, a mirror somehow lifted from the concrete.
Kale gasped. In all the pleasure, she hadn’t felt her features grow softer and rounder. A gorgeous female face looked back at her, oddly out of place on the enormous canine body behind her.
“So, Artemis. You know that Thor is your old Annie. And you’re certainly captivated by how gorgeous you are.”
Kale blushed but didn’t deny it.
“So… Wouldn’t it be a shame to leave him without such a sexy mate?”
Kale arched her back, rolling her hips. A tail slid from her spine, just to curl above her broad back. She looked over her shoulder, seeing the horny dog. There wasn’t a trace of Annie about him. And yet…
Kale wagged her new tail. “Come on, Thor… If it really is you, then-”
The Saint Bernard needed no further encouragement. He drove himself atop her, pressing all of his weight against her body.
“UHH!” All the wind was knocked from Kale’s lungs, and spittle flecked the mirror before her. Her eyes glazed slightly, and she heaved her furry chest to catch her breath. “Urrhhuhhuh… Wait… Something’s…”
Thor nipped at her neck, and the feeling of his teeth against her scruff made her mouth water. Drool trickled down her cheeks, and Kalis shuddered with insensate pleasure. “Uhh… Thumtunth…” Her tongue felt leaden in her mouth, so she let it fall to the side, splattering another gobbet of drool on the ground beneath her.
Arlis looked at her face, watching as her nose darkened, and as her lips pulled down into heavy, swaying jowls. It looked right, but she knew it shouldn’t. Something clicked, even in her dimming mind. “Uhm duhmmm… Gguhwnawrrr dummm duwwgghh…”
“That’s right, sweetheart. Just look at your dumb reflection, and drool the rest of those brains out…” Emily rubbed Arlemis’s hair, giggling as the bitch drooled her brains onto the pavement.
Artemis looked. She watched as fur covered her face, as the spark in her eyes dimmed, only to be replaced with a flicker of mindless, carnal heat. Her new life wouldn’t need intelligence or thought. She had her owner for that. All that she needed was to be horny; to be heavy and sexy for her mate.
“UHROOF! HHROOF!” Her jowls swayed as she barked, eyes crossing stupidly. Thor felt so good filling her, pressing against her, using her like the bitch she was.
Then his knot bulged inside her, and she came, howling her content to the summer air. All four of her knees went weak, and she fell onto her fuzzy belly, struggling to catch her breath.
Too bad for her, Thor wasn’t done yet. He slammed into her again and again, his furry forepaws clamped down around her sides, holding her even as he rubbed his jowls against the back of her head insistently. A faint whine slipped into his panting, which turned to a delighted bark as Artemis rolled her hips.
She didn’t know who she was, where she was, what she was. She only knew that her world felt good, so good that she could just openly drool and clench her pussy until… Until…
Hot, molten cum filled her empty womb, and she nearly whited out. Her mate’s heavy form spilled atop her like a blanket, and she let her cheek fall against the warm sidewalk, basking in the heat.
xXx
Emily dispelled the mirror, looking at the two large, spent figures beneath her with a smile. “Aw, I love making happy couples.” She grabbed their leashes and started to continue her walk. “Now you two are gonna help me-”
The lines grew taut, and she nearly fell onto her ass. She turned back and saw that they were still completely tuckered out; then sighed. “Fine, fine. We can wait a bit. THEN, you two are gonna help me on my walk.”
She trudged back to her new pets, kneeling beside them and rubbing their soft, heavy ears affectionately.