Candy's and Cindy's updated forms in the story are based off of JizzyFoxAD's models.
The scenario is inspired by an animation by Luciamaribela.
From the outside, any chance observer would think Candy's Burger & Fries was quiet that night, but it was not so. All of the parents and their children had taken off at closing time, and management had yet to appoint any nighttime security since they had fired their last guard, but the animatronics stirred within in their own strange way. Without a security guard to intrude upon their home, the animatronics were free to do as the please. Chester the Chimpanzee passed the time in the arcade room, trying to beat his Candy's high score on one of the many games. The Penguin sat in the security office chair, relishing the comfy seat as he turned on the TV to watch his favorite nightly programming. Blank was in the bathroom, grumbling to himself as he scrubbed himself with soap and water from the sinks, trying his best to rid himself of the crude drawings across his body. The Old Candy animatronic stalked the halls much the same as he always had, occasionally passing by his fellow robots without so much as a word. The newer model, the main man himself, Candy, was on the main stage, rehearsing for the next day's show. Candy was a bit of a perfectionist; he was the star of the show, the face of the restaurant! He had to be on the top of his game and make every kid's day when they came by for a party. It made him proud to see their smiling faces as they watched him on stage.
"Alright, I think I got everything down pat for tomorrow," he said to himself with a nod. He looked around the primary party room. "Now where has Cindy gone off to? She needs to rehearse too!"
Candy hopped off the stage and, after a moment of thought, turned to the kitchen on his right. Cindy didn't have nearly the same work ethic as he, a fact that bothered Candy to no end and made the two butt heads on occasion. His sister would much rather spend the night doing just about anything but rehearsal. Admittedly, Cindy did her job quite well in spite of the fact, and she actually handled unplanned incidents better than Candy, especially when it came to helping lost children find their parents. But that was no excuse for skipping out on preparation, especially at such an opportune moment to win big with families now that the Freddy Fazbear's Pizza down the street had finally closed. As he neared the kitchen doors, he could hear pots, pans, and all other types of cutlery smacking into one another; he shook his head and pushed open the door.
Cindy turned to face her brother as he stepped into the kitchen, eating a big, sloppy burger as she looked at him.
"I figured you would be here, as usual," Candy told her, tapping a foot. "Were you ever going to come rehearse with me for tomorrow?"
"Mhm hmm!" she replied through a mouthful of food, completely unintelligible.
"Ah, that makes sense," Candy said, rolling his eyes. "Maybe try swallowing your food before you speak."
He waited as she finished the last of the burger and wiped her mouth, ketchup, mustard, and juice from the meat dripping down unto her shirt. A few weeks prior, management, upon reviewing a close past incident between the Old Candy animatronic and an adult customer, had decided to take precaution and send some of the animatronics back to Rowboatics Corp. for repair and overhauling. Ultimately, only Candy and Cindy were selected to be sent off. The pair were powered off as they were upgraded, and it wasn't until they were returned and powered on that they realized that they had been changed rather drastically. The two animatronics were thoroughly cleaned and troubleshooted for any peculiarities and given refurbished designs, of course, but, for reasons no one at Candy's Burger & Fries could deduce, they were both made very obviously anatomically correct, not just as cats, but as male and female. Talk of litigation and general anger came up from management, but they realized the company was in no place financially to undertake legal proceedings. With a sober mindset, they simply put a pair of shorts on Candy and a large shirt and skirt on Cindy. There were a few weird looks from some parents who took notice, but most were simply happy that their kids were happy. In time, it was as if nothing had changed.
Though everyone else no longer took notice, Candy and Cindy were both very aware of the their new designs and new features. Their fiberglass chassis had been upgraded substantially, their worn, faded bodies replaced with much-needed new pieces that were vibrant with pastel colors and certain to make them stand out against their older compatriots. Alongside the refreshed colors, they received some design changes as well. Their faces received complete overhauls, becoming more lifelike and happy-looking than before with longer snouts and larger yellow eyes. They also gained tails and more detailed feet, the latter being a sorely needed upgrade as their original feet were always rather crude looking. All of these changes were minor compared to those that had shocked management so. The two animatronics were also made very well-endowed; it used to be that many newcomers would mix the siblings up at a glance, but that was assuredly no longer the case. While Candy's manhood was well concealed in the shorts he wore, Cindy's features were much harder to hide. Rowboatics had enhanced her all over: feminine curves, thick thighs, a prominent behind, and big, heavy breasts. To top it off, they had utilized soft robotics and a generous amount of silicone for her upgrades, leaving her "enhancements" to be pillowy soft. The two received bizarre changes under the hood as well. They soon discovered they hungered now, and were required to eat. Candy could only assume it was a way of fueling themselves, but Cindy didn't worry herself with any theories, instead taking to devouring whatever leftovers she could get her hands on. They were both shocked to see what had become of them, their whole bodies massively changed inside and out. And yet, the children seemed to love them all the same as they always had, even more so than before; with their more adult features covered up, the kids took very well to their new bright colors and more expressive faces.
While the siblings noticed their physical changes almost immediately upon return to Candy's Burger & Fries, it took them some time to notice the subtle changes to their own personalities. Before, they were simply advanced animatronics capable of entertaining children and doing little more than walking the restaurant at night and occasionally conversing with others or playing an arcade game. They were pretty much identical in temperament, doing all the same performances and rehearsals they always would. Once they returned from the factory, they found themselves differing in ways they never had before. Candy was more of a perfectionist, relishing preparing his shows as much as actually performing them, rearranging and cleaning everything that had been disturbed by the raucous children in the day, making sure the animatronics were in line. Cindy, on the other hand, diverted from her original steadfast practicing and would often distract herself with whatever she could find, be it the arcade, the tv in the guard room, or just chowing down in the kitchen. She'd regularly go off and do something unplanned with the children, delighting them as much as it irked Candy. To top it off, she could be quite stubborn, resisting Candy's instructions when she once followed them without any trouble. In the end, they would always work things out, at least, and they had more to talk about in any case.
Candy looked at the mess she'd made on her shirt, distracted from his previous goal by her prominent features. It had become a bit of a problem of his since the change. Cindy crossed her arms and huffed.
"So, are we gonna rehearse or not?"
"Oh!" Candy said with a start, blinking. "Of course, lets head back to the stage."
Back on the main stage, Candy began to go through the plan for the next day. Most of their shows were simple kid-friendly jokes and interaction with the crowd, things that barely required any rehearsal, but Candy had always been a stickler for planning. He ran down the cat puns they'd use, a shout out for the birthday boy coming in the next day, the recurring warning about the 3rd toilet in the bathroom, very typical stuff. Cindy swayed on her feet as she listened, nodding here and there to keep her brother satisfied. Cindy turned to face outward from the stage as he elaborated on another point.
"Okay, we'll finish up our song and dance then step off stage and mingle in the crowd as usual. Tommy's mom reserved the table here on the right, just in front of the stage. I'll hit him with the old "catastic" bit, and you can go around the rest of the tables. Oh, make sure to visit Tabitha at the back left table, she broke her arm a little while ago and needs a bit of cheering up . . . are you getting all of this, Cindy?"
Candy turned to his sister, expecting her to see her starting to sneak off or just flat out ignoring him. Instead, he saw her slumped over where she stood, her arms drooping and tail pointing straight down, completely silent. It always shocked Candy at some level to see her like that even after he had seen her do so multiple times before. For reasons neither of them could pinpoint, Cindy had a bad habit of running low on energy and powering down, even with her voracious appetite theoretically fueling her. She had fortunately so far avoided any occurrences during business hours, and it only happened about once or twice a week, but it was enough to be nuisance. At least management had yet to see it, or they might have her sent back to the factory or, even worse, just have her simply decommissioned. While they both still worried about her powering down during the day, they had luckily found a very interesting way to turn her back on. Candy's initial shock was quickly gave way to a swell of excitement.
"Well, well . . ." he said in a low tone, circling behind Cindy. "We can't have a low-energy performance for tomorrow's show! It looks like I'll have to reenergize you!"
As he spoke, Candy began to run his hands down her smooth fiberglass back, following the contours of her hourglass shape down to her widening hips and round bottom. There her hard frame gave way to soft, pliable material in a generous amount. It was somehow even warm to the touch; Candy marveled at the ability of Rowboatics to make an animatronic feel like a warm, living body, and also their ability to make an animatronic actually capable of feeling these things, among others. He quickly pulled her skirt down to her ankles and massaged her ass leisurely, relishing the way her warm suppleness slipped between his fingers and gave way so easily to his grip. He even gave her a little spank, making her ass wobble and her remarkably solid frame move just a tad. More importantly, Candy could make out the barely audible gasp that came from her and the resultant move of her tail to the side, giving her brother a full view and full access to her nethers. When he had first encountered Cindy in such a state, he had panicked without knowing what, if anything, could be done, and had only chanced upon a similar situation to what encountered now; he was fortunate to have got the message then, and he had been more than happy to oblige whenever the situation arose again.
Spreading her cheeks wide, Candy took the view in. The powers that be had seen fit to give her both an anus and pussy; with all the food they now required, they found they had to let nature take its course on the backend as well, something that was somewhat disturbing and difficult to get use to at first. In any case, Cindy's equipment was nice and cute, just as enticing as the rest of her. Candy ran a finger around her anus, spreading it open just a little; they had tried going down there once before, but they abandoned the idea after Cindy found it to be too painful. It was no big loss however, as her pussy was more than enough for Candy. He smiled as he took his finger down to her slit and passed lightly across her outer lips, feeling them twitch at his touch. They gave easily to his prodding, letting his digit slip just inside of her where it was hot and already a little wet. He squeezed her ass with his other hand, purring. His shorts could barely contain his growing excitement. Taking his hand from her snatch, he pulled them down and let his manhood free. It stood long, thick and stiff from its white head down his blue shaft, seemingly made of the same pliable material found on his sister but much more firm. They had even given him a set of balls, a big, heavy, and dangling between his legs. They had discovered soon enough that they could indeed make love with their new bodies, and Candy's sac wasn't just for show, he actually released what looked to be semen. Why (and how) Rowboatics would even put such a thing in a robot left them guessing, but they couldn't care less given how amazing and intimate it felt to do it with one another. Candy ran his hand along his shaft, feeling it harden and grow even more, then cupped his sac, testing how hefty and engorged they were, almost too big for his hand. While he had found himself with a new hardworking, by-the-book personality, Candy could feel a hunger lurking beneath the surface within him. Despite his differences with his sister, he discovered a new, strange feeling when he was with her that he had never known before, a sort of annoying worry when she was gone and a simple satisfaction when she was near: love. They could enjoy their time with one another in a way they simply were incapable of as the more simple machines they once were. And they were given a way to express and realize that love in a very physical way. Candy's purr resonated deep in his chest as he felt his balls swell with seed, ready to release. All of his attention to planning and rehearsing slipped away as arousal built within him. Just as he loved being with her, he loved to thrust deep within her and feel her shudder with pleasure as he filled her with his seed.
He placed his member between her cheeks, put his hands on each side of her ass, and squeezed his member tight, pumping lightly as he did so, making him grow to his full size in no time. Like Cindy with her well-endowed tits and ass, Candy was given a monster cock, long and thick enough to easily fill her. It throbbed against her warm cheeks, dribbling a bit of his transparent lubricant from the tip. Cindy twitched slightly, her lower lips growing moist. He could go like that forever, but he needed to be inside her, needed to feel her awake in ecstasy to his lovemaking. He pulled himself down from her ass and lined up with her inviting slit, pressing his head into it for a short, sweet second before pushing in. A long, slow shudder passed through them both as he crept deep within her, her tunnel giving way to her brother with no trouble, accommodating his size and length to a T. He bottomed out just as his hips met her pillowy rump, a perfect fit; they were quite literally made for each other. Candy closed his eyes and savored the moment, squeezing her ass as her pussy squeezed him lightly in turn. With his eyes still closed, he gripped her bottom and started to thrust in and out at a good pace. Cindy was nice and tight yet lubricated enough to allow easy movement. Candy's cock slid in and out of here without any trouble, her pussy gripping him just enough to make him feel exquisite; his member in return pushed upon her sensitive insides, making her feel just the same even in her current state. The soft smacks of his hips meeting her plump ass filled the otherwise silent party room.
Candy opened his eyes and looked down, watching with satisfaction as his dick pushed into her repeatedly, stretching her around him easily. Her big, soft ass jiggled every time he bottomed out, absorbing the force of his thrust and making the rest of her frame barely move. Her upper torso remained keeled over, a rare jolt of movement coming through every-so-often as the excitement of their sex was still able to reach her. Wanting to take it up a notch, Candy shifted his grip up some and started thrusting a bit higher and harder, pumping his cock into a different portion of her insides. Cindy's whole body responded right away, her pussy spasming hard for just a moment as the rest of her jumped and she let a long, low moan that echoed throughout the restaurant. The extra pressure all along his turgid shaft made Candy shudder, his cock throbbing and swelling into her wet depths in return. He turned his head up and watched the ceiling as he continued to fuck his sister, losing himself in the pleasure of her squeezing womanhood and the sound of him smacking into her ass.
As they went along, Candy's gaze began to wander about the room, looking at nothing in particular. There was not much to see; tables, discarded party hats, wall decorations, and the like. As his eyes scanned the dark room, he just so happened to catch a glimpse of movement in the doorway to the main hall. He stared hard, trying to focus his vision all the while he pumped in and out of Cindy. Eventually, he could make out just the barest outline of a still bipedal figure and a small head with two round ears. It was The Rat. Candy glared at him; the same upgrades that allowed him to feel love also gave him the ability to feel hate, something he could instinctively tell The Rat was capable of to a much greater degree. Candy had at first hoped it was simply his old counterpart as both Old Candy and the Rat lacked the lighted eyes Candy and the other animatronics possessed. Old Candy had a bit of a bad habit of silently staring when Candy and Cindy got it on; Candy wasn't thrilled with it, but Cindy had always been sympathetic to the old decommissioned animatronic, seeing him as lonely without a Cindy of his own. It was different with The Rat. They could both feel the hate and envy radiate from him when he watched. The animatronics had always been wary of him. They could tell he wasn't like them, that there was something deeply wrong with him. He had even tried to stalk and attack the others on occasion, exhibiting strength and savagery far beyond what any of them would expect for something his size. Fortunately, Old Candy shared their dislike and would come to their rescue, easily overpowering The Rat and leaving him to scurry off to wherever it was he resided.
Candy watched tensely to see if The Rat was going to do anything. If he attacked then, it would be tricky to get into position to readily fight back, and Cindy was certainly in no shape to protect herself. But The Rat remained still and simply watched them, full of hatred and want. Candy stopped thrusting, worried over what to do, wracking his head for an idea. His train of thought was broken by Cindy letting out another moan, this one higher pitched, almost a whine, full of need. Her pussy likewise grasped at his penis, already missing his stimulation. With a swell of resolve, Candy set his feet wider apart, gave Cindy a smack on the ass, and started thrusting into her hard and fast. His sister's whole body jumped that time, her eyes fluttering open just a second from the titillating slap to her rear that resounded through the party room. Candy groped and gripped her fat, squishy ass as he pushed in deep again and again, smashing his hips into her cushiony bottom. His cock surged again, growing even bigger as it brushed aside her squelching walls all the way to her twitching end. Lubricating fluid seeped from his engorged head, mixing with Cindy's own hot slippery liquids, allowing her brother to take her faster and faster and making it feel as hot as the sun to them both. Candy took his gaze from The Rat and looked down at the spectacle, once again relishing the sight and sounds of his sister taking his cock like a champ. A confident grin spread across his face, his tail wagging as he could feel The Rat seethe uselessly from across the room. He could never be sure why him and Cindy were changed as they were, but he loved it so very much. He was the face of Candy's Burgers and Fries, he was the star! He was charming, handsome, the life of the party, and the only animatronic with a cock that hung down to his knees and a sac the size of his fist. He was gonna let everyone know all that and more.
Candy gave Cindy another thunderous slap on the ass all the while he pounded her pussy, her supple bottom left jiggling as a moan and shudder rippled through Cindy's body.
"Mmm, did you feel that Cindy?" he asked in a smug tone. "You like it when I smack your ass?"
Cindy murmured something too quiet to hear, though her head and shoulders raised up a ways. She certainly felt it and was trying to let him know with what little backup power she had left.
"Yeah, you like it!" Candy exclaimed, pumping into her with more excitement. Knowing his sister wanted him always fired him up, and made him more than bit cocky. He always got full of himself when they would make love, and it certainly helped that Cindy became much more submissive when doing so. "How about some more?"
Candy began spanking Cindy outright, timing his hand with his thrusts to make her ass bounce as much as he could. Whatever her ass was made of was as jiggly as it was tough, so she could take whatever he could give out, something they both enjoyed very much. Cindy spasmed and jolted, groans and whimpers slipping from her as her head rose off and on. Her pussy did likewise, contracting around Candy's pulsing shaft with renewed fervor. A deep, rumbling purr resonated from within Cindy, making her vibrate all over from pleasure, especially down deep in her core. The vibration and clutching along Candy's cock was astounding, leaving him drooling as he continued to ram into his sister. The sound of spanking and moaning could surely be heard all over the restaurant now, and that was just how Candy wanted it. He was top cat, he was the one in charge, and every moan from Cindy let it be known. She had been made to take his cock, he was the only one that could satisfy her new body, and she was the only that could satisfy his. Their new bodies, their lovemaking made them into the best animatronics they could be, the backbone of the restaurant that kept the doors open and delighted boys and girls every day. The Rat could do nothing against them but rage within himself, and, having enough, he left for his secluded room with his dark thoughts. Candy couldn't be bothered with him anymore though. He was fully absorbed in finishing up with Cindy, showing them both the kind of cat he was and getting her back on her feet.
"Alright, that's enough of the sideshow," he announced, ceasing the spanking. "It's time for the final act!"
Bringing his hands to her hips and taking a firm grip, Candy widened his stance again once more then flung himself into her bottom, going at it with an almost unreal energy. He was a true fucking machine, his hips a blur as he pummeled her pussy. Wet smacks filled the restaurant once more, and now Candy's swollen sac smacked into as well, burgeoning with a heavy load of cum all for her. His cock blazed in and out of Cindy, her tunnel burning hot and sopping wet by now and trembling with excitement and expectation, squeezing and teasing his manhood for his seed her womanhood needed so desperately. The throbbing in his member came faster and harder, each one shaking his body and swelling it even more somehow, testing just how much Cindy's pussy could handle. There was no more extra space within her, and nowhere his cock couldn't touch at all times; each thrust sent waves of ecstasy all through her body. Her purring had grown loud, enough so to be heard alongside the smack of synthetic flesh on flesh and enough to send Candy's dick wild, his head spewing a river of pre-cum to meet her own surge of fluids that ran down their thighs. Cindy was moaning and groaning without end, her brother's onslaught leaving her unconscious body a wreck. Her upper body raised higher and higher, the bliss of it all nearly powering her on. Getting an idea, Candy waited for Cindy to rear up as high as she could and then reached his hands out as far as he could while nonstop thrusting, taking ahold of her chest and bringing her to an upright position. The new position didn't allow so great an angle inside of her, but his cock had swollen to a size where he could reach every inch of her innards, and now he could take ahold of her big, bouncing tits and give them the attention they deserved. He wasted no time, squishing, squeezing, molding her supple breasts any way he could, thrusting without any restraint as he did so. They were magnificent, bigger than his hands and so very sensitive for Cindy, her moans quickly giving way to whimpers and whines of shear bliss. With a pinch of her nipples, Cindy let out something of a purring squeal and began to shudder as if she were to come apart, the sign of very imminent orgasm. Candy could feel a twitch deep in his nuts, a heft building there and along his cock, his semen filling his shaft and ready to blow. He grit his teeth and thrust as hard as he could into his sister, crashing into her plump ass at a blinding speed, his manhood resisting her contracting tunnel with all it had just a last few times. With a growl, Candy thrust one more time, pushing his cock as deep as it could go, bringing his head to her artificial cervix right as they both came.
The sounds of smacks, moans, groans, growls, and any other noise gave way to loud, reverberating purring as brother and sister did so in unison. Candy continued to thrust hard but slow, pushing into Cindy's wonderfully plush bottom as his cock throbbed audibly within her collapsing, drenching pussy, his dickhead pressed tightly against her deepest depths as it shot an endless discharge of cum into her womb. Cindy powered on to find herself in complete rapture, her body resonating with orgasm as her brother set her seizing pussy aflame and flooded her with his white-hot seed. She wanted to tell him how much she loved him over and over, but she was rendered speechless by it all, only able to weakly push back into his thrusts and purr with him in absolute contentment. Candy was also struck mute by the overwhelming euphoria, and he simply pumped in and out of her with everything he had left, wanting to fully drain his throbbing nuts and give her the biggest load possible. Cindy's eyes rolled back as her womb became stuffed with his thick, hot cum, and began to expand to accommodate his seemingly endless supply. Her pussy continued to choke his member as if to manually eke his jizz from his triumphant manhood and did indeed compliment his throbs in perfect sync. Candy placed a hand on her belly, leaving the other to squish her breast and tease her sensitive nipple. Bringing her hand down to his, Cindy intertwined her fingers with her brother's and held their hands on her belly as it swelled with his seed, her orgasm peaking as her womb grew so full and heavy. They closed their eyes and leaned close to one another, Candy resting his head on her shoulder and nuzzling the side of her face. They savored the moment, doing everything they could to draw it out and love each other as completely as possible.
It was a while before the two realized they had come down. Blinking hard, Candy stepped back and pulled his member out of his sister with slick pop before pulling his shorts up. He was a mess, but Cindy's body didn't let even a drop of his cum leak from her, all of it nestled secure in her gravid womb. Cindy pulled up her skirt, turned around, and gazed at him with sleepy eyes and an almost dopey smile; she was always docile and submissive after a bout of their lovemaking. She rested a hand on her slightly swollen belly, a visible testament to their love.
"Now, what do you say, Cindy?" Candy asked her with a smirk.
"Thank you, Candy," she answered softly, then she leaned in to kiss him. Candy kissed her back, enjoying it just a much as what came before. Cindy pulled back after a moment. "Are we still going to rehearse?"
"No, no, we're good for tonight," he replied. Sure, she was submissive now, but he could never bring himself to boss her around with those big, kitten eyes on him after they made love. "How about we go watch some TV? I'll make Penguin give you the seat."
She smiled and nodded, taking her brothers hand in his. They walked off the stage together, and, after a cleanup in the bathroom, made their way to the office to simply enjoy their time with one another. Everything else could wait for some other time.