Splitting a Diamond

Story by Joshiah on SoFurry

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#131 of Transformation Stories

Though Ash and Aaron are content to split the third character mentioned in the title in more than one way, neither one of them realizes that they might be playing for keeps in this story commission!

Using his portals to what one might call nefarious ends, Ash finds the next lucky plaything for he and Aaron to sample: this time, it's a blue vixen by the name of Dia, and things are off to a fairly routine start, with Ash pushing his length down her throat and Aaron going for her womanhood.

When things seem a bit too ordinary for the hellhound and his wolfish companion, Ash tries to cast a spell to heighten all of their pleasures, only to backfire the gestures with his paws...and he has no idea what's going on until it's too late, and Dia finds herself -very- attached to Aaron...so attached, you might say, that they feel inseparable.

It starts as a knotting, but their bodies begin to fuse, taking on a new shape entirely and creating a new form for them to share!

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Commissions are open! https://docs.google.com/document/d/1M4k7uyTIRESrkmEhcuQPtznK7qDFrDH358Vk9-bYrGY/edit?usp=sharing August has arrived and brought 90,000 words worth of commissions with it, so if you'd like a story that captures the peak heat of the summer, be sure to reach out!

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As always, read, comment and enjoy!


"Those portals really do allow you to go just about anywhere, don't they?"

"Not quite anywhere, but...they definitely give me access to places that you've never been before."

Aaron snickered. "Well, this one is either from the other side of the galaxy, or she's really talented at dyeing her fur..."

A typical, dark-furred wolf himself, Aaron was the most common looking of the makeshift trio, and standing next to Ash, he looked rather plain: the hellhound that befriended him did nothing to hide the unique coloration of someone who had been touched with infernal power.

The pools of brilliant white and orange that gave a radiant glow from his fur were given an even greater contrast when he stood next to his newest partner in crime, but just one look at her left Aaron convinced that she wasn't of their world.

She was a vixen, clearly enough by the shape of her sharper, narrow muzzle and the wide plume of fluff at the base of her tail, but the satisfying shade of royal blue that tainted her overcoat gave her white underbelly and even greater contrast, rendering the normally cream shade to a greater, stark brilliance.

In a room full of unique individuals, her fur coat alone was enough to make her stand out, and much to Aaron's delight, she didn't bother bringing any clothes with her through the portal; she knew what they'd brought her in for, and she came through wearing only a smirk.

"I get the impression that you wouldn't believe me, even if I told you that this was natural," she finally spoke up, revealing that she knew the local language, at the very least. "It is natural, for what it's worth...though you'd be right to assume that it's an exceedingly rare coloration."

"I was gonna go with exotic," Aaron teased. "But if you like saying more than a necessary mouthful, I won't complain about it."

She cocked a brow. "Quite the charmer, aren't you?"

Ash gave his friend a nudge and forced a kinder smiler to his own lips in the process. "He's a little rough around the edges, but I can just about promise you that you'll warm up to him, if you give it some time."

"I've got all night," she claimed. "I sure hope that'll be long enough for the two of you."

Not just in the lack of clothing, but in the tone of her voice, the vixen made it clear what she was there for.

It was a pleasant surprise for Aaron when a woman was pressing with that much aggression, but if she was that eager to get started, he wasn't going to keep her waiting; he could hurry things along with the best of them, and he shot Ash a quick, knowing look.

"You know how to say all the right things, but we've been with plenty of people that talked a big game and couldn't back it up," Aaron suggested. "Since you went to the trouble of joining us, I'm not gonna keep you waiting...but I sure hope you can put your money where your mouth is, stranger."

"Call me Dia," she replied, and with a widening grin, she gripped each of the men by the wrist, pulling them toward the bed in Ash's underground hideaway. "At least, call me that to start...once we get moving, you two can call me whatever you want, but now I'm wondering what I need to call my little dream team..."

"Dream team?" Ash snickered. "I mean, I guess we do work pretty well together, but I don't think we've ever been given that much credit."

"She's just trying to use flattery to get us started," Aaron theorized. "Can you smell the warmth coming off of her? She's gotta be in heat..."

Her grin sharpened, right along with her narrowed glare. "Starting my heat, anyway, but now who's the one talking a big game?" she asked, as she tugged their wrists anew and sat on the edge of the bed, her thighs parted just enough to draw their attention past the enticing weight of her breasts. "I'm sitting here, silently begging to be fucked...and the two of you are going back and forth about me instead of going back and forth _with_me."

They didn't need the extra motivation to get started, and Dia was delighted to see the unique cocks of the pair of canines beginning to emerge when her parting legs revealed a greater hint of her intoxicating scent.

That aroma was filling the darkened bedroom, but in the cover of that low light, Aaron was already deciding which part of Dia's body he wanted to tease first, and Ash, for his part, was hiding his paws behind his back and whispering something under his breath, having a plan for how to enhance their fun later.

He didn't realize what a mistake he was making when he rushed through the incantation, but he was starting to feel that sense of urgency just as much as Dia was, and she kept with his pace when her fingertips fell from his wrist and reached for his cock, holding it steady.

"They both look enticing, but...I wanna know what this one tastes like, first," she admitted, seeing the strange, ethereal glow that Ash wore about himself. The haunting aura made it all the way down to the emerging tip of his cock, but that little bit extra disappeared when Dia brushed her bangs away from her gaze, making sure that her own hair wouldn't interfere with her fun.

There was no falsehood in her delicate touch, and nothing forced about the way that her tongue rolled over Ash's tip: she was genuinely curious, and just as much as that, eager to taste his flesh...but Aaron wasn't being left out to dry, when her paw cupped the full, swollen orbs in his sack and gently fondled them, letting him know that she was more than capable of handling two men at once...even such a voracious pair as Aaron and Ash.

"Keep that set of lips sealed, then," Aaron suggested, as he stepped in close enough to capture her wrist. "I'm more worried about the other set, anyway."

Her eyes had closed for a moment, allowing her to settle into the amorous nature of the act, but she cocked one of those amber orbs back open and glared up at Aaron, sensing that he was going to be the one to give her trouble, if either of them did.

It was some alchemic blend of lust of luck that brought the pair together; she was in the mood for a little trouble, and if she had to get into it by going after something as big as the length of flesh that had emerged from his sheath, she didn't have any problem with turning over the reins, so long as she was allowed to keep enjoying the morsel against her tongue.

"Sorry to say, Dia, but you might have to put your snack on pause for just a moment," Ash mentioned. "I know you've been patient, but I'm sure you can wait just a few more seconds, right?"

That glare turned back to the hellhound, just before she winced her eyes and bobbed her head all the way to the base of Ash's impressive member.

Pulling back only when she had a chance to swallow around the tip and show off the talent in her throat, the vixen opened her eyes again to admire her own handiwork, loving the sight of her own spittle as it dripped down his shaft and soaked the fluff upon his balls.

"As long as you two end up being worth the wait, I don't mind giving you a few more seconds to line me up just right," she murmured. "But as long as I've been waiting, you'd better be worth it..."

Aaron shot a glare at Ash, wondering just how long the hellhound was keeping their new friend in chastity before this occasion.

Whether it was a forced respite, or simply the pressure of Dia's heat, something was driving the vixen up the wall, such that she was crawling further onto the middle of the bed and spreading her thighs wider, even before the boys had a chance to pose her like the toy she wanted to be.

"Seemed like you were enjoying yourself just fine before you decided to put a pause on things," Aaron pointed out, grinning. "Can't be all that needy if you'd stop for a break just when things were getting good."

"Couldn't get any better without something inside me, and I didn't have a third paw to work with, in case you weren't aware."

"Pretty sure our friend here has a spell or two that could have fixed that for you, if he wasn't so busy thinking with his dick," Aaron nudged Ash, encouraging the hellhound to move forward first. "But since you were so enamored with it, why don't you go ahead and finish what you started?"

Ash snickered and fell forward dramatically, hoping a hint of levity would keep Dia from turning as ravenous as she claimed she could be.

"If she's up for it-

" Been up for it, thanks..."

Crawling right past her torso and spinning on a knee, Ash straddled the vixen's face and looked back over his shoulder for a moment, sensing that she wasn't in the mood for an ordinary, gentle blowjob.

She'd given him a look the entire way through her sample that was silently begging him to swab her throat, and from the new angle, her neck was going to be stretched to the absolute limit, just as she would have hoped; having a bit of a raspy voice the next day would be well worth the delight of feeling his knot in the confines of her maw.

"Aren't you two just the cutest?" Aaron mocked their little bit of back and forth as he climbed into the bed and knelt between Dia's open thighs, letting the underside of his member slap down against her proud, tender clit. "Pushing each other's buttons every step of the way...and lucky me; I'm the one who gets to reap the benefits."

"Start reaping, then."

Her voice was stern by then, and the bit of playful elation was gone from her expression as she reached behind Ash, cupping his backside and holding it in a powerful grip to encourage him toward her open lips.

The angle was a bit difficult to get started, but once the tip of his canine length pushed down and over her tongue, he knew he wasn't going anywhere: he could pump from the knees and fuck the back of her mouth as hard as she wanted, without the fear of spilling over the side and catching her fangs.

Her heat was going to get her into more trouble than she ever could have guessed, but when Aaron finally wedged the tapered tip of his length against Dia's parted folds and offered her that first, delightful sample of penetration, she couldn't have cared less about how sore she might be the next day, or how fertile her body was.

She cared only about the fulfilling stroke that followed when Aaron's hips rolled forth, guiding the full length of his cock into the comforting embrace of her eager, heated bodice.

"I was worried we hadn't done enough to warm you up, but...y-you're not just starting your heat cycle," Aaron claimed. Pulling back his member as he adjusted his kneeling stance, he saw just how much excess moisture was already glistening on his shaft, bewildered and delighted in the same breath. "You're right in the middle of it, Dia...I could probably knock you up just by looking at you funny..."

Knowing the extra risk didn't slow Aaron's approach in the least, and being exposed didn't dissuade her, either: his length dipped back in, but she only clenched that much tighter around his twitching flesh when she had the chance, as if she was daring him to pour a load inside of her and tempt whatever fate he believed in.

She felt heavenly, but it was only his third pass...they had a long way to go before he was going to offer her what she was really after, but neither one of them had any idea that they wouldn't quite be able to finish what they'd started.

Without that in mind, Aaron finally gripped Dia by the hips and leaned in properly, letting her feel the full weight of his cock with a genuine thrust.

"If she's that far along, I wonder if I could knock her up from this end," Ash joked, giving Aaron a look that hinted at their competitive nature with each other in the bedroom. "I'd race ya, but...y-yours won't have as far to travel."

Aaron thought to make the obvious point about how impossible that would be, before recalling that the hellhound was full of magical tricks: it wouldn't have surprised him at all to find out that Ash could knock someone up that way, if he were so inclined.

Rather than push that envelope, he pushed his greater efforts into Dia, seeing that she was a bit too occupied to be able to praise his efforts verbally...but she was doing a heavenly job of working her inner muscles around his invading shaft and lifting her legs, eager to drape them around his lower back and lock him in for the long haul.

That's the way, big guy...not gonna let Ash outshine you, are you? You're really starting to find your stride...

She wished she could still vocalize her appreciation to him, but slapping her heels against his lower back and dragging her claws along his ass were surefire ways to get her point across...and her immediate reward was a deeper, firmer thrust from Aaron, who started to wince with the subtle pain of her attempts.

Those eyes opened with a new brilliance in his pits of swirling gold, but more frightening than that was the grin that spread over his lips as his claws sunk into her hips and held her steady for a series of firmer, hammering thrusts.

"She's not afraid to ask for what she wants...and when that fails, she demands it...I...r-really like that about her," he confessed, finding a new addiction in the way that her soaking passage embraced his flesh and milked it with silent desperation. "I know I've only just met her, but I feel...f-feel a really strong connection to this one, Ash. I think we should keep her."

Bouncing on his knees and swabbing his length into the capable, tender flesh of her throat, Ash would have been of the same mind, but he was snickering at the suggestion. "That's not exactly how this works, dude...n-not that I think she'd object right now. Feels like she's gonna suck my soul right out...nnnfuuuuck..."

"Do you even have a soul?"

" Not cool."

The little bit of levity bought Aaron a few more seconds, but there was no denying a heated vixen what she was after, when she allowed her own body to freely seek the seed that it needed.

Clenching, milking and squeezing with effort unlike anything Aaron had ever known, he felt no shame in answering the natural call of her womanhood and leaning his full weight into her mound, pushing harder and harder with his knot until he felt her petals beginning to stretch.

Ash took some pride in knowing that he was going to win the endurance race, but as he watched the action from the topside and saw Aaron's knot finally pushing through the tight grip and settling within Dia's body, he felt her moaning around his shaft and trying to milk the seed out of him , as well; her appetite for the stuff was nothing short of voracious, but even when her claws sunk into his ass and her fingertips clenched the taut flesh, he refused to be so easily bested, wanting to drag out the pleasurable interlude for as long as he could.

"Tied with her already? Fuck, dude...t-thought you had a little more in you t-than that," Ash taunted, thinking that they were going to need a break when he was just getting to the best part; he didn't know that Dia could keep sucking her way through the moans of an orgasm. "Sure hope you're ready to be a dad, too..."

Aaron and Dia completely ignored such a possibility when she so eagerly pulled his body into hers, but what seemed strange about it was just how close they'd become: they'd only just met, and yet, some prat of their connection was deeper than a single meeting could convey.

Some of it was ethereal, at best...but some of it was becoming freakishly literal, as Aaron felt something more than flesh or natural arousal spilling onto his knot.

"Uhm...d-dude?"

Aaron looked up from his knot and gazed at Ash through eyes that were already shifting color: heated gold was warming up to the same shade of amber that Dia's eyes were when they began, but what made them truly striking was the way that the features around his eyes were taking on the same coloration of subtle, royal blue that her overcoat held.

"Did you bust into the makeup kit when I wasn't looking?" Ash asked, but when he stopped to look down, he noticed Dia was shrinking away from the end of his cock, just before he had the chance to reach his peak. "Uh...w-what...what the fuck did you just do?"

She wasn't shrinking down so rapidly that they wouldn't be able to watch it all happen, but it was fast enough that Ash wouldn't be able to stop the magical process that had begun...and Aaron, still paralyzed by the throes of his climax, was too bewildered to do anything but watch as the vixen upon his shaft continued to shrink into it, as if she was becoming a part of his already impressive shaft.

"You really think I'm t-the one that's doing this?" he asked, shooting daggers back at Ash with a greater intensity than his usual frustrations. "I was just in the middle of turning this little bitch into a cum dumpster when...s-she started melting..."

"I can still hear you, idiot," she growled up at him, her expression so addled with fury that it almost masked the obvious concern she felt with the unexpected transformation. "What the hell did you two do to me?"

Her thighs stayed wrapped around Aaron's hips, but they were gripping him tighter than ever as their flesh continued to merge, with her personality and frame falling prey to the dominant nature of the wolf within her.

It was the kind of mergence that mortal agencies couldn't possibly facilitate, but...with a hellhound in the room, looking down at the wisps of energy coming from his fingertips, there was an easy culprit to pick out.

"While you've still got eyes, don't use them to look at me," Aaron suggested, turning his gaze from the unusual display of Dia sinking further and further into his groin, and lifting those visual daggers up to his partner in crime. "Especially when we both know damn well that you had something to do with this, Ash!"

The hellhound smiled as innocently as someone with such a title ever could, going as far as to hide his paws behind his back and pretend that he hadn't been inspecting them.

"So I may have gotten a little carried away with a spell I was casting...I didn't think I'd screwed it up this badly!" he finally confessed, and even as he watched Dia's body shrink the rest of the way down and meld with the already impressive flesh of Aarons' cock, he was trying to figure out what nature of spell he'd cast; he needed to come up with a counterspell for it immediately. "Did you just...d-did you just fucking absorb her through your dick, dude?!"

"Why are you still asking me that like any part of this was my fault?"

"I mean...you did make the decision to fuck her...pretty sure I didn't have anything to do with that."

"You literally brought her to me," Aaron reiterated, looking down at his body with an even greater sense of confusion when, despite having the physical mass of two people sharing one space, he was starting to shrink. "Pretty sure it's become figurative, now, but I'm not really worried about splitting hairs with something like that..."

There were too many other things for him to worry about in the heat of the moment, and the emphasis was on that warmth, as he felt a sensation just short of burning in the pit of his stomach...and instinct was telling him that the only person who could fix that was Ash...

...But not for the sake of any magical ability he had.

"Glad to know that you're worried about the same thing I am," Ash mentioned, assuming that Aaron was worried about looking for a cure, more than anything. "I'm gonna have to head to the back level of some seriously ancient libraries to get this one sorted out."

"Or...y-you could just stay here with me, for a bit. You didn't finish yet, right?"

"I'm flattered, but d-

"Don't even start; this is your fault, but I'm gonna take care of this problem my way," Aaron cut him off and took control of the conversation once more, but there was an unmistakable shift in his voice, capturing both a greater sense of sexual frustration...and a softer, sweeter tone of feminine wiles. "Goodness knows if I let you take the point on this, you'll just find a way to make things even worse."

There was no shortage of frustration about Aaron as he tried to keep Ash at bay with a glare, but if there were magical forces at work, only the hellhound would be able to undo them, and without getting close, he'd never be able to figure out a remedy.

It wouldn't be quick, no matter what he did...but the longer those twinkling dots of amber lingered on Ash, the less pure, unbridled frustration there was about them; another kind of frustration was bubbling up within him, instead, as his biomass continued to shrink, little by little, into a smaller frame.

At the end of it, he was somewhere between his original height, and the height of the vixen that had become a part of him, but his body wasn't anywhere near done with the uncontrollable changes that occurred.

"This is gonna sound weird, but...it feels like my crotch is talking to me."

Ash gulped. "...It probably is."

"What?"

He thought he was going to need more time to get to the bottom of things, but with that clue, Ash could already tell what would happen next, even before Aaron's chest softened and swelled, allowing for full, supple breasts to emerge and perk where his pectoral muscles once stayed flat. Nipples that were hidden by a field of black fluff took on such a brilliant presence of blue that they couldn't be missed, and that same color was spreading across the little bits of flesh that were lucky enough to appear above his fur, even the tip of his cock...

...And that, too, was shrinking back toward his body, ready to take its place at the top of something more appropriate for the body he was about to have.

"That part of your body...where she went in? She's still there," Ash explained, able to feel her energy from a distance, still interacting with the original purpose of the spell. "She's trapped within you...and she's...s-still cumming, I think."

Watching the opening of his sheath continue to spread, Aaron immediately recognized the longer, narrower slit that receded between his thighs and settled against the end of his pubic mound; it took only an instant for the pleasure that was trapped within Dia to transfer to Aaron, and as he dropped to his knees with the weight of an immediately climax, his own load of trapped, virile seed poured right back out of his newly formed passage.

Huffing in a series of tight, rapid breaths and trying to come to terms with the final portion of an impossible change, Aaron glared at Ash through lidded eyes...but that anger wasn't what left the hellhound with a dry, nervous tongue.

It was the tiny bit of a curl in Aaron's lips that did the trick.

"You know what? Let's...n-not fix this right away," Aaron changed her mind, letting a fingertip rest on her clit with an eager, curious swirl. "I think Dia and I want to see what this new body can do!"