On the planet Flabbia, where the laws of the galaxy held little sway, the scientific elite had perfected their most depraved creation: the Cock-toppers. These were not mere miniaturized humans; they were a breed apart, standing at a mere 16 inches tall, engineered for a singular, abhorrent purpose.

Sally was one such Cock-topper, born into a culture that was not her own, but one meticulously crafted by artificial intelligence to serve the perverse desires of the ruling class. For generations, her people had been conditioned to believe that their purpose—to serve as living sex toys for normal-sized humans—was a matter of pride and tradition. Sally's mother had instilled in her the importance of being the best Cock-topper she could be, of fulfilling the destiny for which her body had been so carefully designed.

Her physiology was a testament to the cruelty of Flabbian science. Her pelvis was unnaturally wide, her internal cavity capable of accommodating a full-sized human male. Various parts of her body were made more elastic to withstand the trauma of her intended use. Most disturbingly, she had been genetically engineered with erogenous zones all along her colon, forcing her to associate pain with pleasure, to crave the very act that would cause her suffering.

Sally's entire upbringing had been a preparation for this moment. Her "schoolwork" had consisted of fostering a porn addiction, cultivating an obsession with large penises and anal penetration. She had dreamed of the day when her anus would finally be taken by a real, fleshy cock from a full-sized man, a day when she would live with such a person and have her ass stuffed with a real flesh and blood cock that would fill her and warm her insides every night.

The year leading up to her graduation had been a relentless regimen of preparation. Massive inflatable devices had been inserted into her rear end daily, stretching her out in anticipation of the massive cock that would soon come. It had been painful, but her breeding had made her crave this pain, to associate it with the pleasure she was programmed to desire.

Now, having graduated, Sally was on her way to live permanently with a normal-sized human. The arrangement was not one of choice, but of design. She cared nothing for her potential mate except for the size of his cock. She wanted it to be so big that she could barely handle it.

As she was delivered, she sat on a massive butt plug in a small box, overcome with a lust that had been engineered into her very being. She was horny, her body betraying her with a desire she could not control, and she spent the entire journey masturbating furiously, her mind consumed by the promise of what was to come.

When she arrived at the man's house, she could hear the muffled voices of the delivery person and her new lifelong mate. The brief discussion ended, the door shut with a finality that echoed in the small space of her box, and the lock clicked into place, sealing her fate.

Rick's heart pounded with anticipation, his cock already hard at the thought of the tiny creature awaiting him in the box. It was his fifth Cock-topper, but he had paid a fortune for this particular breed of Cock-topper, and the rumors of their engineering had fueled his darkest fantasies for weeks. With trembling hands, he lifted the top off the delivery box, his eyes widening as he gazed upon his newest treasure.

There she was, no more than 16 inches tall, her body massively obese, as was typical for Cock-toppers in their final year of training. Her mobility had been sacrificed for the sake of her intended purpose, her tiny form overflowing with engineered fat. But what caught Rick's attention was not her size, but her actions—she was masturbating furiously, her tiny fingers working between her legs with a desperate urgency.

"Hey there, little cock topper!" Rick's voice boomed, sounding like thunder to the tiny creature. "You are about to get so much cock up your ass that you're not even going to believe it!"

At the sound of his voice, Sally's movements became even more frenzied. Her tiny little voice, barely audible, squeaked out screams and shrieks as she brought herself to orgasm. Her body convulsed with the force of it, and as the waves of pleasure subsided, she looked up at the giant figure looming over her and squeaked, "Thank you, sir."

Rick reached into the box, his massive hand dwarfing her entire body. He had no trouble plucking her massively obese, yet tiny little form up into the air. She weighed next to nothing in his grasp, a living, breathing sex toy designed for his pleasure.

"Let's get a look at that beautiful little hole," he murmured, his voice thick with lust. With his other hand, he slid the relatively enormous butt plug out of her ass. The gaping hole that remained was a marvel of engineering—smaller than a normal human's mouth, but on the tiny little creature, it looked impossibly big, a dark cave waiting to be explored.

Holding her easily with one hand, Rick used the other to explore her body, marveling at the miracle of science that was her tiny form. He pressed her enormous yet tiny fat ass cheeks against his lips and began to make out with her loose, gaping hole, his tongue probing the engineered depths of her colon.

Sally, for her part, was getting seriously aroused now. Her body, engineered to crave such attention, responded with a flood of hormones. She had been bred for this moment, and despite the depravity of it all, she could feel her desire building, her tiny form trembling with anticipation for what was to come.

Rick's tongue explored Sally's anus with a hungry intensity, his moans vibrating through her tiny body as he devoured her most intimate place. All the while, his hand worked furiously on his own cock, which had grown to a monstrous size, thick and veiny, standing at attention. Sally, held suspended in his grip, could not tear her eyes away from the sight. Her engineered desires surged through her, a primal need that overwhelmed all other thoughts. She needed that cock inside her with an urgency that bordered on madness.

Though Rick's tongue felt large, probing the depths of her colon, Sally had been trained with much larger implements. This was merely a prelude, a tease that heightened her anticipation for the main event. She watched, mesmerized, as he stroked his raging hard cock, his movements becoming more frantic with every passing second.

The thought of that magnificent shaft exploding with cum inside her bowels, filling her completely, consumed her mind. She wanted to touch it, to caress it, to love on it with every fiber of her being. A delirious lust had taken hold of her, a fever of desire that made the world spin. She knew that cock was meant to fully fill her bowels, to claim her as his property.

In her lust-addled state, she hoped Rick would be a forceful man, a "shover" who would try to force his cock deeper than it should go. She wanted someone who would fuck the shit out of her every day, who would use her body with the passionate intensity she craved. It wouldn't be long now—his cock was impossibly hard, ready to burst, and she knew he would have to stick it somewhere soon.

Finally, the kissing slowed, and Rick reached for a container of grease, liberally applying it to his shaft. Sally felt a thrill of anticipation as he gently sat her down, the head of his cock already peeking through the entrance of her gaping back door. With excruciating slowness, he began to slide himself inside her.

He could only fit about a third of his cock inside her before she was completely filled, her tiny body stretched to its absolute limit. Her belly distended massively, a grotesque yet erotic sight that Sally caressed lovingly, enjoying the feeling of being so utterly full. She knew that eventually, with time and patience, she would be able to take his entire cock, but only once her colon and belly had been completely stretched out to accommodate his size.

As they sat there together, flesh joined in the most intimate way, Rick lovingly caressed her obese little body. "Don't you worry, little thing," he murmured, his voice surprisingly gentle despite his size. "We'll get you stretched out completely."

At his words, Sally became impossibly hornier, her body responding with a fresh wave of arousal. Rick, sensing her need, reached a finger between her legs and began rubbing it against her clit, sending jolts of pleasure through her already overwhelmed system. She became extremely aroused, her body trembling with ecstasy.

In that moment, Sally knew her dream had come true. She had found her place, her purpose, her cock. She was home.

Rick's voice rumbled through her tiny body as he spoke, "Let me go introduce you to the others." Without withdrawing from her, he stood up, his erection still buried deep inside her. Sally gasped as she was lifted into the air, her world now reduced to the sensation of the massive cock impaling her and the shifting landscape as Rick walked from the kitchen to one of the bedrooms.

When they entered the bedroom, Sally's eyes widened. She was not alone. Four other Cock-toppers occupied the room, each in various states of repose, their bodies testaments to their shared purpose. A flicker of disappointment flashed through her mind at the thought of not having Rick all to herself, but it was quickly extinguished. Her job was not to desire exclusivity; her job was to care solely about getting his cock in her ass as much as possible. Her programming and breeding had made that her singular focus.

"Let me introduce you to Sharon," Rick said, his voice casual, as if introducing new friends at a party.

Sharon was a sight to behold. She was a massively obese blob of a Cock-topper, her belly loose and flabby, protruding a full two feet in front of her. Her ass was plugged with a butt plug that would have been a normal size for a full-sized human, but on her tiny frame, it was an obscene spectacle. As Rick pulled it out, Sally could scarcely believe her eyes. Sharon's hole was unbelievably large, a gaping cavern that seemed to defy the laws of biology. It was a testament to what Sally herself would one day become.

"Sharon, this is Sally. Sally, Sharon. I'll let you two get acquainted while I fuck the shit out of Sally," Rick announced, his tone matter-of-fact.

Any thoughts Sally might have had of having a conversation with Sharon were instantly obliterated. Rick positioned her, still perched on his cock, directly at Sharon's gaping hole. Then, with a powerful thrust, he plunged forward, shoving Sally's head and a fair part of her shoulders into Sharon's ass. The world went dark and fleshy, the air thick with the scent of Sharon's insides.

Rick then proceeded to fuck the shit out of Sally, each powerful thrust shoving her head deeper into Sharon's ass. Sally was overwhelmed, her senses drowning in the sheer depravity of the act. Yet, she could not help herself. Her hand found its way between her legs, and she began to masturbate furiously, fighting for gasps of air between the brutal thrusts. This was beyond anything she had ever fantasized about. The raw, animalistic nature of it, the sheer power of Rick's movements, the sight of Sharon's massive body and what Rick had done to her—it was intoxicating.

She knew that Sharon could probably take Rick's entire cock, and she wanted that for herself. She was impatient, greedy for the stretch that would make her complete. So she fought hard to push back, to force Rick's cock deeper inside her with each of his thrusts. She needed that. She needed to be stretched. And as she looked at Sharon's enormous, flabby form, she looked forward to the day when she, too, would be that big, a perfect vessel for Rick's pleasure.

Over the next ten minutes, Sally came many times, her body convulsing with waves of ecstasy that crashed over her again and again. This was her life now, her purpose fulfilled. She was being used, stretched, and filled, and she loved every second of it.

Rick finally paused, his breathing ragged, and said, "I think it's time that you see what I'm going to do to you." Sally felt a profound sense of disappointment as his massive cock slid out of her ass, leaving her feeling empty and incomplete. But that disappointment was quickly replaced by a burning curiosity. She was eager to witness the spectacle, to see the full extent of what her new life would entail.

As she wondered if Sharon was capable of being fully penetrated by Rick's massive cock, he set Sally down directly in front of the obese Cock-topper. Sally's hair and face were covered in Sharon's filth, a memento of her recent ordeal.

"Now you be sure to say thank you to Sharon!" Rick's voice boomed, leaving no room for disobedience.

In the fog of lust that clouded her mind, Sally managed to squeak out, "Thank you." The words were automatic, a programmed response, but they were met with an unexpected gesture. Sharon leaned forward and kissed Sally on the lips, her tongue exploring the filth-covered face with a surprising tenderness. It was so hot, Sally thought, her mind racing. She just wanted to see how much cock Sharon could take up her ass, and she was not disappointed.

Rick mounted Sharon from behind, his massive frame dwarfing her tiny, obese form. He moved slowly, deliberately, easing his cock all the way inside her. Sally watched in awe as he picked Sharon up slightly, adjusting her loose, flabby belly as he penetrated her deeper and deeper. It was a mesmerizing sight, watching Sharon's belly fill up with Rick's giant cock, the skin stretching and distending to accommodate his impossible girth.

Rick then adjusted Sally's position, pressing her body firmly against Sharon's so that she could feel the other Cock-topper's belly against her own. And then he started fucking her. In earnest. His cock slid out nearly to the tip before plunging back in again, each thrust sending ripples through Sharon's flesh that Sally could feel against her own body. It felt good. Sally could feel the cock as it slid into the belly that was pressed against her. It was a strange, intimate sensation, and she found herself craving it. She wanted a belly like that. She wanted to be fucked like that.

"You're gonna be able to take that much cock someday!" Rick told Sally, his voice thick with promise and exertion. "But I think you two still need to get more acquainted." With that, he lifted up Sally and set her ass directly onto Sharon's head. Sharon's head was now squarely up Sally's ass, her tongue probing and exploring the depths that Rick's cock had recently vacated. It wasn't as fulfilling as Rick's cock, but Sally still enjoyed the sensation, the intimate connection with another of her kind.

Rick, in a display of incredible strength, had picked both of them up and continued fucking Sharon with his cock while simultaneously fucking Sally with Sharon's head. He bounced them up and down on his cock while standing, the three of them engaged in a perverse, living sex toy. Sally could tell that Sharon was really enjoying herself—the muffled moans and the enthusiastic movements of her tongue were evidence enough. And Sally was enjoying herself too. She started masturbating, her mind consumed by thoughts of becoming as fat and loose as Sharon, of one day being able to take Rick's entire cock and provide him with the same level of pleasure. This was her future, and she welcomed it with open arms.

The room was a symphony of obscene sounds—the wet slapping of flesh, the muffled moans of Sharon, and the ragged breathing of Rick as he exerted himself. Amidst this carnal orchestra, Sally's attention drifted to the other inhabitants of the room. While she and Sharon were being fucked in their perverse arrangement, the other Cock-toppers were all connected to tiny feeding machines, tubes slowly and constantly pumping nutrients into their bodies, fattening them for their singular purpose.

Some of them were even larger than Sharon, but Sally's gaze was drawn to one in particular—a pure blob of fat with not even the tiniest shred of mobility. Her ass rivaled the size of a normal human's head, a grotesque monument to gluttony and perversion. As Sally watched, her fantasies soon turned to the thought of her own transformation into such a creature. She imagined her body swelling, her mobility disappearing, her hole stretching to accommodate ever-larger intrusions.

Rick noticed Sally's fixation on the massive little Cock-topper as she masturbated, her hand moving furiously between her legs. A smile spread across his face, a knowing, cruel curve of his lips.

"Ah, I see you've noticed Irene," he grunted, his hips still pistoning into Sharon. "Yes, I enjoy her too. Would you like to become that big?"

Sally kept masturbating, her strokes becoming more frenzied as she nodded, her tiny body trembling with the force of her impending orgasm.

"Good," Rick chuckled, "because I intend to make you that big."

At his words, Sally began cresting on her orgasm, weak moans escaping her lips as waves of pleasure crashed over her. Rick watched, thoroughly enjoying his perverted new toy.

"Let's say we get a little train action!" Rick announced suddenly, his voice booming with excitement.

With one massive hand, he braced both Sharon and Sally, walking over to the shelf where Irene lay. He reached under Irene's bed, lifting it with a grunt of effort and setting the entire apparatus onto his much larger bed. With a flourish, he removed a butt plug dildo from Irene's ass that was even larger than the one Sharon had been wearing. It was a monstrous thing, big enough that even a normal-sized woman would have struggled to accommodate it without significant prior training.

Rick held the filthy butt plug up to Sally's face, his eyes gleaming with malice. "Kiss it for luck!"

Without hesitation, Sally pressed her lips to the soiled surface, the taste and smell of Irene's insides filling her senses. Filth smudged onto her face as she pulled away.

"Do you like that?" Rick asked, his voice thick with arousal.

Sally nodded, her hand still moving furiously between her legs, her body on fire with a perverse lust she could neither control nor understand.

"You'll probably be tasting a lot of that," Rick promised, a dark thrill in his voice.

With that, he spread Irene's sizable ass cheeks and guided Sally's head into the massive, gaping hole. Sally's world went dark and fleshy once again, the air thick with the scent of Irene's bowels. Rick resumed his fucking, his powerful thrusts sending shockwaves through all three of them. He fucked them like that for what seemed like hours, his stamina seemingly limitless.

Sally became lost in the sensations—the feeling of Sharon's head in her ass, the taste and smell of Irene's insides, the constant movement of Rick's powerful body. She was overwhelmed, drowning in a sea of perverse pleasure.

Finally, with a guttural roar, Rick came, his seed pumping deep into Sharon's ass. Sally could feel Sharon's excitement at this, the muffled moans and shrieks growing more intense as the Cock-topper's body convulsed with her own orgasm. Sally felt a pang of envy at Sharon having received Rick's cum, a jealousy that burned even as her own pleasure crested once again. She wanted that. She wanted to be the one filled with his essence, to be his ultimate vessel of depravity.

Rick finally withdrew Sharon's head from Sally's ass, but he was not done with her. With a practiced movement, he replaced Sharon's head with a sizable dildo, pushing it deep into Sally until it reached the very limit of what she could currently accommodate. Sally gasped, her body adjusting to the new intrusion.

However, Rick left Sally's head exactly where it was—squarely shoved up Irene's massive ass. He took a moment to adjust the fat of Irene's ass cheeks, pressing them firmly around Sally's head to ensure she was as far up the gaping hole as possible. Satisfied with his arrangement, he left her there, a living, breathing plug for Irene's insides, to remain for the rest of the day.

When nighttime finally came, Rick returned for Sally. He carefully extracted her from Irene's ass, her head and face slick with filth. He cleaned her up with a gentle thoroughness that contrasted sharply with his earlier brutality, then dressed her in a piece of lingerie that was as revealing as it was slutty. The lingerie was designed with one purpose in mind: to emphasize her ass and her asshole, putting them on display for his pleasure.

"I think for the first couple of weeks, we'll have to sleep with my cock up your ass," Rick stated, his tone matter-of-fact, as if discussing the weather.

Sally was overjoyed at this declaration. The thought of being fucked all night long, of being filled with his flesh for hours on end, sent a surge of pure ecstasy through her. She was glad she had slept during her stay up Irene's ass; she wanted to be awake for most of the night, savoring every moment of being filled, every sensation of his cock inside her.

As Rick's cock entered her, Sally could not stop masturbating. Her hand flew between her legs, her movements frantic as she tried to work his massive shaft deeper into her body. This display of eagerness greatly aroused Rick, who helped her out by wrapping his powerful hands around her wide hips and fat ass cheeks, pushing down on her with firm, steady pressure.

"I like it when they come to me so hungry for cock," Rick grunted, his voice thick with approval. "You're even more hungry than Irene was. And she was insatiable. I think I'm gonna make you my special project."

At his words, Sally came again and again, her body convulsing with waves of pleasure. Rick's dirty talk fueled her lust, painting a picture of her future that was both terrifying and exhilarating. She wanted so badly to get that cock deeper, and by the end of the evening, through a combination of her own desperate efforts and Rick's forceful assistance, his cock was halfway up her ass, her bowels stretched further than they had ever been.

Rick was indeed a pusher, just as she had dreamed. He was a pusher and a shover, and he was determined to keep shoving it deeper until he got that entire monstrous cock all the way inside her. As she lay there, impaled on his shaft, Sally lovingly caressed her massively distended belly, a swollen testament to his invasion. A smile touched her lips as a single thought drifted through her mind, a thought that filled her with a sense of perverse pride and accomplishment.

Her mom would have been proud.