Oops 2

Story by Dirty Little Secret on SoFurry

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#19 of Complete Stories

Sequel to Oops, which should be read first. Now that Gwenny has turned herself into a centauress by accident, Doug's human efforts to satisfy here just aren't enough. She needs a nice big horsecock and a heaping helping of creampie before she'll have had enough. Thankfully, she still has some of that transformation potion left, and when she mixes it the right way, Doug will transform into a stallion who has everything she needs.

F (centaur) x M (horse). Transformation, vanilla breeding, references to questionable consent sex work and bestiality-ish things. 4226 words in 1 chapter.


Cover image based on artwork by rajii, of a character by fenoxo. Used with permission.

Gwenny's upper body popped up immediately. Then her eyes locked onto his. "I ... I need more!"

_That_was a side of the normally sex-averse elf Doug had never seen before! Had his whole arm inside her centauress pussy not been enough? What had becoming a centaur done to her? "More?" he said. "I don't know if there's any more I can--"

"No! I can feel it!" She suddenly turned and grabbed his shoulders, shaking him a little. Her incredible breasts jiggled as she did that. "It's like, like this thirst deep inside of me! There's something missing! It's burning! The heat isn't going away yet!"

"Uh..."

She crossed the room in one galloping leap,her horsey lower body covering the distance easily. "Yes! There's still enough potion left!"

Doug looked at the transformation potion ingredients in her hands ... which she quickly mixed together and poured into the same crystal chalice she'd used.

"Come on!" she said, holding the chalice out toward him. "Don't make me wait for it!"

"Well... Okay." She knew what she was doing, right? And he did want to make her happy. He always did his best to make sure she was as satisfied as possible in sex ... in hopes that she might want the next time a bit sooner.

At first, he reached up to grab the chalice, but she blocked him with her other hand. Instead, she held it up to his lips, feeding it to him.

Okay, a little weird, but why not?

A moment later, he found out why she'd done it that way. The transformation was fast. He immediately toppled over forward, and by the time his hands hit the ground, they weren't hands anymore. They were hooves. If he'd been holding the chalice, it would be shattered on the floor right now.

He looked down at himself, looking with eyes that made him dizzy at first. They focused strangely, and his view was so much wider now. His chest was furry and grey, with darker grey spots ... and it was much more rounded than he was accustomed to. Already knowing what he'd see back there, but needing to see it anyway, he turned his head. The unaccustomed weight and heft as his muzzle swung around threw him off at first ... but then he saw his body - his long, horsey body.

Experimentally, he lifted a hind leg, fascinated to watch it move to his will, even though it was so far away. Even stranger was the ability to flick his tail. He'd never been able to do anything like that before. Swish, swish, swish, he could move it all around. It was an even darker grey, almost black, and those dark grey spots on his fur were even more prevalent and closer together along his back. He could just make out a little bit of his mane, the same color as his tail.

And what about...! Instantly he dropped his head down as low as he could along the side of his body. Even then, he couldn't quite see, not until he shifted his hind legs a little. And then there it was - a big fat sheath and two dark grey balls, each bigger than his fist. Well, bigger than his fist would have been back when he had hands. Holy shit... The things he could do with a cock like that!

Gwenny huffed. "Are you done staring at yourself yet?"

He turned back to face her. She was staring back at him with her hands on her ... hips? Where her elven hips would be ... now the place where her humanoid body met her dark brown horse body. Her tits were still on full display, but he was somehow oddly not as interested in them as he knew he should be. They were fantastic - so pillowy soft and yet jutting out in perky defiance of gravity. He could still tell in a detached, academic sense that she had a really great rack ... but somehow, his eyes kept straying down toward the horse half of her body. Somehow the way the sides of her belly swelled out between her front and back legs was just amazing now, not to mention the glossy sheen of her brown fur. And the smell! That smell! A sour and musky spice that just lit up the inside of his head like nothing else. Even though he'd never felt anything like it before, he was pretty sure that sliding and stretching feeling from his crotch was the feeling of his big horsecock slipping out of its sheath.

"Hello! Are you still in there, Douglass?" Gwenny tapped on his big horsey forehead. Probably hard enough to have hurt back when he was human, but now he barely felt it. "I know this must be a shock, but come on! I didn't give you the potion just so I could watch you stand there!"

He shook his head to clear himself a little, and he tried to say, 'Oh yeah, sure!' ... but it came out as nothing but a kind of a snort and a soft whinny.

Huh? He tried to speak again. More horse noises. And as much as he tried to move his mouth as he spoke, it barely made any change to the sounds. He couldn't even breathe through his mouth. Okay, maybe one more try. Perhaps if he...

"Hey!" Gwenny grabbed his head, pulling him close. His sensitive nose pressed up into the valley between her breasts. "You can't talk - you're a horse!" She released him and shook her head a little. "It's like you've never even been transformed before. Do they not teach you this stuff in human school?"

He attempted to shrug. In his new quadrupedal body, that resulted in little more than a weird dipping of his head for a moment. It probably didn't get the point across.

"Here," she said, turning around, "maybe this will give you some idea about what you should be doing."

Seeing Gwenny's horsey body from behind was a brand new epiphany for Doug, changing everything about the way he perceived the world. To be precise, his perception of the world narrowed down pretty much exclusively to Gwenny's big round brown-furred rump.

Only ... it didn't seem quite so big now, nor quite as tall. She seemed _just_the right size for him. Even with her tail down and covering the most interesting parts, her well-muscled curves drew his gaze inexorably. And it wasn't the same as when he was human. Then, what had attracted him was the kind of superficial similarity to a well-endowed human anatomy. Now, though, the parts of her that were unquestionably horse were all the hotter for it. The way her thick hind legs narrowed down toward those big, protruding ankle joints. The base of her tail and where it met the big overarching curve of her rump. The dimpled grooves of well-defined muscle up either side of her ass cheeks... And the smell was even stronger now - that fascinating, head-spinning smell! It sizzled and sparkled inside his big, sensitive nose, overwhelming him even more than the sight of her.

And then she raised her tail.

The increased smell hit him first, and it would have washed away almost everything else about the experience ... if the other aspects of it hadn't been burning at him just as strongly. The delicate arch of her tail up and to the left, the dark skin and subtle veins of that delicious gap between her legs, and more than anything the flashes of hot pink as her pussy winked open at him. It all burned its way into his head, turning him on in ways he never knew he could be turned on before. If he'd had any mental capacity to spare, he'd have worried about whether he'd ever be able to get turned on by anything else in the future.

Gwenny looked over her shoulder, something he barely even noticed, and she gave a horse-like whicker that only turned him on more. "Come on, what are you waiting for?" Her pussy gave another strong wink, this time leaking out a little bit of her milky-clear juices.

What was he waiting for? He wanted her. He wanted her now!

He surged forward, stumbling a bit at first on his uncertain hooves atop the slick tiles of the floor, but his chest bumped up against her inviting ass in no time. Running purely on half-formed instinct and hasty guesswork, he hefted the front of his body up, rearing up onto her back. His hind legs surged, pushing his front legs up and over her rump, settling him in place on her back.

"Yes!" Gwenny breathed. "Do it!"

His hips thrusted. His cock swung underneath him. His hind legs slipped on the tiles.

That was it, and there was no recovering for him. With his back legs skittering uncontrollably forward, he lost his balance, sliding farther and farther back off of Gwenny. Just as he was about to come off her, he fell to the side, bumping hard and painfully against the workbench next to them. Bottles and beakers rocked and rattled, but thankfully nothing fell down or broke, not even when he fell the rest of the way and collapsed onto the floor.

It took him a couple tries to roll upright and get back up onto his hooves. These legs were strong, but they felt so ungainly. How did Gwenny make it look so easy?

By the time he stood up again, Gwenny was there. She ran her fingers through his forelock. And even as she petted his horsey head, she leaned her upper body to the side, glancing down underneath his belly. "Oh Douggie, I should have known you wouldn't be ready to go again so soon. You came just a few minutes ago, didn't you?" She smiled a little and stroked his cheek as she looked him in the eye. "Let me do something about that."

Doug didn't really think that was the problem. It had just been a little difficulty getting used to moving with this new body. But when Gwenny's solution turned out to be walking up alongside him and then dipping her upper body down low under his belly, he wasn't about to complain about it.

He felt her smooth, delicate hands against his cock first. They seemed so small and nimble as they slid up and down along his gigantic horsey shaft! And to his utter shock, her mouth wasn't far behind. Even though he couldn't see anything she was doing down there, the slight pressure and wet warmth of her lips kissing against his tip was unmistakable.

And there ... there right next to him was the warm, sexy swell of her horsey ass. He leaned toward it, running his lips over her fur at first, and when her tail rose up, he eagerly dipped his muzzle right down underneath it.

That smell! Stronger than ever, it dominated his mind. He could scarcely think of anything else. Her pussy was winking right up against him, wetting his nose with her dripping juices. There was absolutely nowhere else in the world he'd rather be. He whuffled up deep breaths of her intoxicating scent, desperate for more, more, more!

And what she was doing down underneath his belly was just the cherry on top. Getting oral from her was already a rare and precious experience, and to feel it in a whole different way this time was special indeed. It was hard to tell exactly what she was doing in the middle of this utopia of pleasure, but it felt like she was running her tongue in long, tender licks all the way up and down his huge shaft, stroking him all the while with deft motions of her delicate hands. And at the bottom of each stroke, he felt the delicious tingling tingle of her caressing his heavy horse balls.

Of course, all this quickly brought that giant new cock of his to full hardness again. Soon it was pulsing and throbbing underneath his belly. His hips jerked, thrusting against Gwenny's tongue and fingers.

She wasn't about to let him cum just from that, though. Of course not. That wouldn't get her what she wanted. As soon as she deemed him ready, she pulled herself back up from underneath his belly and neatly pirouetted around to face her rump toward him again. Her hind legs were already slightly outspread, her tail already up, and her pussy drooling out a little river of slick juices as it winked feverishly.

She didn't have to ask him this time. This time, he knew exactly what to do. He reared up and surged forward at the same time, retaking his place on her back. And maybe a less-than-fully-hard cock had been the problem last time, because this time, he felt his tip already butting up between her legs when her ass cheeks were still right between his forelegs.

It only took a few frantic thrusts before his tip found something altogether warmer, wetter, and softer. The slight catch in Gwenny's breath and the way she pushed back against him a little was all the invitation he needed.

Things might not have been perfectly lined up at first, because when he pushed forward, nothing happened right away ... not until her pussy winked open, helping him slide in.

The first little push just barely got his tip inside her, though even just that was enough to make him shudder. He would have moaned, but it came out more like a strained horsey grunt. And once he shuffled his hind hooves a little bit, he was ready for more.

With just a little more pressure, his tip slid up to that inner barrier his human cock had barely been long enough to kiss up against. But now... Now he was ready and willing for more. Much more. The memory of having his human hand in there was coursing through him, and he just had to get his horsecock deeper inside her!

It took more of a push than he was expecting, even with the incredible equine strength of his new body. But Gwenny helped, pushing desperately back against him, helping him push his way through that tight little ring inside her pussy. With an easy, slippery grace, it stretched its way through.

Oh, the sheer warmth and softness inside her! He slid in the rest of the way in a series of frantic thrusts, each one desperate to get just a little more. That soft, enveloping heat that had pressed so easily against his hand now cradled most of his cock, molding perfectly around the shape of him, and her pussy lips winked against his sheath, dribbling out yet more juices as the horse half of her body finally got everything it wanted. Well, almost everything.

The way Gwenny trembled, the way her pussy squeezed down on him, the way her breath came in urgent gasps ... it all told him that there was something more she wanted. Perhaps something to do with how much attention she was giving his balls a few moments ago?

Well, he'd like nothing better than to give it to her. At first, he was able to pull much of the way out and give her a couple slow, sensuous thrusts the way she'd always liked before ... but the self control necessary for that became more and more elusive. Within moments, he found himself digging his forehooves into her flanks and just shoving, shoving, shoving as deep and as fast as he could. His thighs were almost always in contact with her ass cheeks as he pushed himself sheath-deep inside her over and over again.

Gwenny was eating it up, though. She braced all four legs and pushed back against him, letting out adorable little gasps each time he bottomed out into her deep, warm pussy. And she outright screamed when he instinctively bit down on her withers, just below her humanoid hips, giving himself just a bit more leverage to thrust inside her with.

But as much as that affected her, she didn't seem keen on him continuing to do it. Instead, she twisted her upper body around and took his head in her arms, pulling him up and away from her horse body.

It went against all his new horse instincts to let her do that, but there was enough human in him left to appreciate the way she held his head against her chest instead. Her luscious breasts enveloped his horsey head, one up against his big, broad cheek and covering most of it, while the other rested on top of his nose, where he could feel the sumptuous softness of her tit against his sensitive muzzle. Her arms held him there firmly as she gently stroked the fur of his face with her hands.

"There you go, yes," she whispered between soft moans. "Give it to me. Inside. Fill me up. I need it so much. Yes, yes... Oh just a little more..."

Even if her tone was a little infantilizing, somehow he didn't care. It felt ... nice. Even in the heat of animalistic passion, her tender and comforting touch just made all the difference. And it didn't hurt that his remaining human instincts still loved those bodacious tits of hers.

Soon, all of that more sentimental pleasure mixed in with the visceral feeling of Gwenny's soft and hot inner walls to drive him closer and closer to the edge. He gave a bestial little grunt with every breath now, and as he plunged his cock into her again and again, she began to feel tighter inside somehow ... not as if she was smaller, but as if his cock was bigger.

"Yes, that's it, Douggie." She stroked her fingers through his mane, even as she gasped at the feeling. "I can feel it flaring up inside me. Let it out - let it all out! Give me every drop! I want... I want it... I wa-aaah!"

This time, her pussy _did_squeeze down against him, clenching in tight pulses as his flare rubbed on that little nub deep inside her and drove her to orgasm once again.

So tight and smooth and _hot!_He pressed his flared cock hard against her innermost barrier, straining all four legs to push himself in as far as he could possibly go, stretching against the tight confines of her pussy as it milked his entire shaft.

And he unloaded. This was nothing like the human orgasms he was accustomed to. He could feel the wave of it starting deep inside him, and he could feel the bulge of it swelling its way down through the whole length of his horsecock until it finally splashed outward into Gwenny's depths in a long, continuous stream.

But that was only one burst. He shuddered in place, collapsing down onto Gwenny's trembling back as an even bigger surge followed that one, and then another, and another! He could only go by the way it felt, but he wouldn't be surprised if his cock was pumping more cum into Gwenny right now than he'd ever produced in all his years as a human. Even after it overflowed her still-pulsating pussy, splattering noisily onto the tiles between their legs, it kept coming and streaming into her with no end in sight.

Eventually, though, it did end. His big horsey nostrils flared as he sucked in deep breaths, and by that time he was as sweaty as Gwenny had been after the string of orgasms he'd given her with his hand.

And even though he'd only seemed to give her one good orgasm this time, it must have been a very_good one, because she didn't seem anywhere near as antsy as she'd been after that first time. She was content to stand there in place, soaking in the warmth of his cum around his softening cock as she gently stroked the fur of his face. "Oh yes," she cooed. "_That hits the spot..."

Before long, his cock had softened and retreated into his sheath to the point where it flopped out of her even though he hadn't moved his hips at all. He could feel it slide out of her and swing freely in the relatively cold air of the potion lab. He could hear the splatter when a thick gob of cum dripped out of Gwenny's pussy and fell onto the tiles.

Still, though, he was too exhausted to pull himself off of her. He felt like he could lie here forever, enjoying the warm afterglow of his first sex as a horse and luxuriating in the tender caresses of Gwenny's hands.

But Gwenny had other plans. She stepped forward, sliding herself out from underneath him and forcing him to stand on all four hooves again, unless he wanted to flop down and land in a puddle of mare juices and cum.

Doug's eyes stayed fixed on Gwenny's still-winking pussy as she walked over to the other side of the room. Even as spent as he was at the moment, he couldn't help but feel a surge of arousal when he saw those flashes of deep pink inner walls and those drips of stark white cum still dribbling out of her. His cum. She'd never let him cum inside without a condom before. Was this ... was this going to make her pregnant?

In no time, though, she'd retrieved that potion of undoing.

A sudden thought occurred to him, that maybe they should stay like this for a little while and try it again, maybe see if they could do a few different positions, maybe have her try giving him a blowjob to completion in this body, to see what that felt like. But before he could make any sound - much less figure out how to communicate such a thing to her when he could only whinny and neigh - she downed the potion.

This one was a little slower. Instead of an instant flash from one to another, he got to see her body stretch back and mold itself back to the way she'd been before, her natural elven body. It didn't take long at all, but it was slow enough that he could actually see her barrel shortening, her front and hind legs merging together, her pelvis reforming into the slim and svelte expanse of perfect smooth skin he'd drooled over so many times in the past.

Well, that was that, then. He followed her over to the same cabinet, reaching his long neck around her and nuzzling around in search of his own potion of undoing bottle. Gwenny - ever the practical and forward-thinking elven mistress - had put adapters on their caps that would make them easy for a horse to pick up and drink with only their mouth.

But Gwenny reached out her hand and blocked him. She grabbed up all three remaining bottles and locked them up inside one of the cabinets. There was no way he'd ever manage to work that cabinet latch with just his mouth. What was she doing? 'What gives?' he tried to say. It came out as an indignant little neigh.

She seemed to guess his meaning well enough, though. "Potion ingredients aren't cheap, Douggie. And I have an idea of how you can make it up to me for wasting a very valuable and difficult to make potion."

Doug followed her across the room as she strode over to where she'd left her clothes. She was still stark naked. He could even see a little bit of horse cum still leaking from her pert little elven pussy. But she didn't show any interest in putting her dress back on just yet. Instead, she dug into her purse ... or what passed for a purse in elven fashion - sort of like a large, removable pocket that could be clipped onto the side of her dress in various positions with little snaps. And she pulled out her phone.

He had to play around with the angle of his head a little before he could focus properly on the phone's screen. Eventually he figured out that he had to tilt his head downward to focus on something that close.

By the time he managed to get a good view, Gwenny had already pulled something up for him to see. It was a classified ad from some kind of farm website. 'Stud Services. Full Service Breeding, Boarding, And Birth $4600 - One Time Cover only $800!'

In a very human-like rather than horse-like expression, his jaw dropped, leaving his mouth hanging open.

Gwenny patted his withers. "We'll have to charge a bit less because you don't have any papers, but that potion gave you a _very_nice horse body, and anyone who sees you will be impressed enough to go for it. I'd say maybe five or six times should cover it? Maybe a couple extra just for fun and profit, hm?"

Doug really felt like he needed to lie down ... if he could only figure out how to do so in this big, quadrupedal body. This was not the way he'd thought this day would go.

The End?

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