Despite Scala being reptilian, Jack found her lap to be immensely warm, as well as inviting. Despite his normally tall physique, the bunny boy found that the lizard outsized him by nearly twice his six-foot frame. Placing his curvaceous pink rump onto her sun-hued balls and shaft was a bit of an ordeal, but Scala was more than happy to help him get into position. He had volunteered, after all, and she was only too happy to be the very first to give him some proper tests. 

Given how supple his ass was, and the ease of which the cold-blooded lass was able to writher her cock right up to his pucker, it was sure to be a wonderful time for both. The gargantuan lizard was just one of the many Macro Defenders enlisted by Dr. Chu for this task. It seemed like a simple enough of a test for the grassy-colored herm, especially since Jack’s sitting position on her junk, with his head simultaneously rubbing along her yellow breasts, easily made her want to start her one, and only, task. 

Besides, it was always a pleasure to use Dr. Chu’s private, stadium-sized testing facility whenever possible. It was usually reserved for the most important of examinations.

Feeling that tip spread his ring apart of its own volition, Jack couldn’t help but start panting. Scala’s tip was no laughing matter, and as it coaxed its way in to the diminutive rabbit’s backside it started to stretch him quite wide. Scala paused there for a minute, breathing heavily and holding position, until she could feel her precum begin to flow. One of the fringe benefits of being a full-fledged Macro Ranger happened to be the supercharged fluid production. Not only could she gush out enough preliminary juices to flood a room, her eventual creamy outburst would make her initial output seem like a slow trickle. 

As the lizard’s broth seeped deep into his rump, Jack’s tongue lolled out of his mouth in bliss. His stomach started to bellow outwards, and quite loudly as well. Each gush of pre from the tender lizard behind him swelled his tight stomach out to a more fitting roundness. His hips, at the same time, started to inflate as well. Normally feminine in appearance, with a few extra inches of width along the sides, they were a sight to behold. He had a lower half to his body more befitting a fertility goddess, and as his pelvis started to expand along with his belly, Scala found it all the easier to start sliding into him.

It took a while as the countless inches slipped forth into Jack’s gripping tunnels. As foot after foot of Scala’s spire of cock stretched his tailhole, the bunny kept growing along like a champion. As time wore on his stomach swelled further outward and upward, half from the endless fluids constantly surging into his backside, and the rest just to accommodate the dozens of pounds of scaly cock buried deep within. It stretched out nearly twice the lengths of his arms as Jack’s belly started to drag down towards the floor. Its immense girth knew no bounds, and as it rubbed up against both his legs and Scala’s bouncing sack, it drove her right up to her edge.

While she bucked her hips up into the air like an irate bull, she finally let loose with everything she had. Jack squealed towards the roof of the lab, some few hundred feet upwards in the middle of the Macro Defender compound. The rest of his body started to swell up in kind, accommodating for all of the excess milk being poured into him. Despite his ever-growing size, the bunny had the tendency never to release the slightest drop back out, only using it to fuel his own massive capacity.

As the hundreds of gallons of Scala’s unrelenting orgasm flowed deep within Jack, his belly’s growth far outpaced the rest of his body. By the time her fifth straight orgasm came around, finally starting to empty her rotund balls of their bounty, Jack’s body was nearly the size of hers. He bounced happily along her lap, his massive ass slapping into her fecund hips, desperate to get every last droplet out of her. His belly, on the other hand, was easily the size of an SUV. Jutting out a good fifteen feet from the rest of his frame, Jack’s salmon-pink belly gurgled with excitement, trying to process the weighty spillage from his friend.

Jack could feel a gentle caress from behind, arms gripping along his hips and most of his stomach.  “Thanks for the wonderful time,” Scala cooed gently into his ear. Her training was impeccable, and as she withdrew from his rump and eased him into a sitting position on the cold concrete floor, she was almost ready for another go, herself. “Rest up for a minute, and I’ll help bring in a good friend for Round 2!”

“T-trust me,” Balargon chirped with glee, feeling his belly slosh inside like waves crashing against a beach in the midst of a storm. “I wouldn’t move an inch, even if I could!”

The lapine rocked there in place, tossing his head back in relaxation while his abdomen brimmed with enough spunk to practically fill a water reservoir of a small town. His body handled it better than he had expected, but he was no stranger to his own indefatigable gut. Jack’s auburn ears flopped about his shoulders as he wondered how much larger he could truly get, and if Dr. Chu might have any ideas on the matter. She was quite versed in this particular area, after all, and he considered other possibilities as he eased his back towards the ground to lay down. 

“Sorry to keep you waiting, Jack.” The soft, lyrical voice came from a few feet away, but Jack still hopped a bit in place in shock. His hearing was usually stupendous but he didn’t even hear a single footstep on approach. Perhaps it was due to the fact that Plasm, the owner of said voice, didn’t need to take any steps at all. Being a goodra had its benefits, after all.  Despite of Jack’s extra height and girth, the slick dragoness cast a large shadow over him as she stood at his feet. “No, no, don’t bother to get up! I’ll take care of you right there.” 

While Jack had reached a good 12 or so feet in height like Scala, Plasm was another matter entirely. He could feel her body drip along his exposed feet, her excess goop sliding as the droplets bounced off of his springy belly, only to cascade down the sides of his stomach. She was standing at least 20 feet tall, as large as most of the trees outside of his home. If not for her warm and tender personality he would feel a sense of dread. Still, as she knelt down onto the ground and slid forward, he could feel the lower half of his body start to rise off of the ground slightly. The lagomorph was being hoisted up into the air along her broad, purple sack, as the gelatinous orbs slipped underneath and provided a makeshift bed of sorts. 

Plasm’s titanic breasts, easily around Jack’s height before he even started this experiment, slid forward as well. Their heft forced down the bun’s legs, keeping them engulfed in her body heat and constant drippings and rendering him all the more immobile. By the time Jack’s erection slipped between her boobs, he was already gushing his own milk in sudden bursts. He painted her lavender breasts and eggshell-hued sides with his pearlescent runoff, shooting so high he constantly splattered against the underside of her chin.

“You’re so eager today, Jack! Let’s see If Scala really prepped you enough for me, though. You might feel a slight spreading sensation…”

To say that the dragoness was correct was an understatement. Those hefty cheeks of Jack’s parted wider than even he expected, feeling the heat of Plasm’s dick sink slowly into his tailhole. He was helpless to do anything about it, with his lower half being held down between her balls and her oozing breasts  while his own gargantuan belly, held aloft by the goodra’s embrace, kept the rest of him pinned.  Jack’s inner walls gripped around his new guest as she entered, trying to clamp down as tightly along the invading force. The best thing about the dragoness, at least to him, was that even when fully hard she was still pliable and soft all around.  The fact that Plasm dripped constantly, both from her throbbing tip as well as along the entirety of her shaft, was a close runner-up. There was something luxurious about her entire body being her own, special lubricant, after all.

With seemingly endless enthusiasm, Plasm wobbled about as she sank a few more feet worth of her prick deep inside Jack. His belly started to reach up against her face to accommodate her rich pole. Thanking his belly with a multitude of kisses, she leaned in more against his body, bouncing in place to stroke along his shaft all the more. The rabbit’s cumming had yet to slow down, and all of his constantly shifting and bucking made the goodra squeal in joy. Just as the bunny was ready to scream out in ecstasy as well, he found himself completely unable to do so. Plasm, having lost herself to his vice-like grip along her shaft, leaned forward and covered him entirely with her body.

Just when  the rest of her gooey body practically smothering him, Plasm finally let herself go. Dr. Chu had let her know ahead of time that Jack was supposed to expand to his limits, and he should be able to grow enough to breathe again as her multitudinous ropes of jizz inflated the bunny like there was no tomorrow. Jack, on his part, was thrilled that he was able to get in a good gulp of air before he was utterly engulfed in his friend’s slimy embrace. It didn’t take long for the bunny’s stomach to swell out, helping to lift the dragoness a bit more off of him as he continued to cum as heavily as a fire hose against her body.

As his belly gave him more oxygen and freedom, he happened to gain only about another two feet in height than before. His ass and hips received an additional boost, but it wasn’t anything as tremendous as the last time around. For whatever reason, his midsection was hoarding almost all of the changes, and they were quite a thing to see. By the time Plasm had had her fun and slipped out, he was still around five feet shorter than she, but his stomach protruded as if he had swallowed her whole. It stretched out a few car lengths in front of him and, just for fun, Plasm stood up a bit, turned around, and sat down on it. 

“I’m just going to rest here and obstruct your view while I wave in another buddy for the last round, hon!” Plasma giggled heavily as she let the sight of her ass, as well as massive tail, block his sight for a bit. She threw in a few shakes, and a playful spank along her own booty just to keep the bunny more than preoccupied. Given the view, Jack found no reason to complain.

His ears could detect someone else walking up towards the goodra, but their whispers were far too low to make out anything in particular. It wasn’t until Plasm stood up and gave the massive figure a high-five that he could finally tell who was last up his mandatory filling. Standing just as tall as Plasma and sporting short fur as white as snow was Cutie, quite proud of showing off her unicorn form. Her horn shined brilliantly along her forehead against the backdrop of her vibrant hot pink hairhair that cascaded down to her shoulders. Her mountainous breasts, as pillowy as Scala’s, jiggled just as much as her balls. Her shaft was already at full attention, climbing up well over 11 feet into the air to just barely get in the way of her mouth. 

“Hi, Jack!” Cutie squealed as she saw her friend laying along the ground. “I thought I’d show up around Scala’s height, given how big you already are!” The equine set down on her haunches, letting her member dangle and drip her tasty fluids all over the bunny’s muzzle. “Still, your belly is going to hold you back a bit! Let me work up my magic here and give you some more height without any additional capacity. The doctor can’t get mad at me for that!”

A faint aura of pink enveloped her body, starting with her horn, as she tapped along your legs. As her hands moved upwards they started to extend as the inches poured on. Jack could feel even more of the chilly concrete seep along his body as Cutie’s hands devoted more attention to his midsection and sides of his torso, until he was nearly the length of a house. 
His gut, proportionally, wound up being much smaller than before compared to the rest of him, but it still remained the same overall weight, and sloshed with just as much ferocity. The unicorn’s magical prowess came through for her once more, befitting her stature as the head of the Macro Defenders.

“That’s better. Now I can fill you up properly, like my personal condom!” Acting before giving Jack any time to respond, she slid deep into his tunnel. Her flare spread his inner folds to what felt like their limit, but he didn’t mind in the least. All of the extra cream from Scala and Plasm both still lined every nook and cranny, making Cutie’s entrance as quick as could be.

Being the leader of the Macro Defenders gave Cutie both the experience and the knowledge of how to handle almost any particular threat. Granted, Jack was nowhere close to being intimidating, especially since he was a friend of hers, but seeing him beached on the floor like a whale put a few ideas in her head. It didn’t take more than a few seconds to fully hilt his prone self, feeling him squirm as his spade of a bunny tail flitted about behind him along the floor. The equine hooked her arms underneath his knees to ensure a tight grip along the top of his calves, right before she hoisted up his legs so far upright he could have sworn he was strapped into stirrups. A slight breeze rushed against his ass as Cutie withdrew to the rim of her flare, lining it up perfectly just a few millimeters away from slipping right out of Jack’s ring. 

Cutie let her erection pulsate there, threatening to withdraw any second, as she stared down into Jack’s eyes. They were glazed over in bliss, and she could feel him demonstrating his own enjoyment by the sporadic gushes of sizzling bunny milk against her legs. Sufficiently pleased with her handiwork, the unicorn tightened her grip along his ankles, pulled his legs up a bit more, and drove her turgid staff in so far she could swear she saw the bulge from her tip reach up to Jack’s ribcage. Throughout it all her clear, preliminary fluid gushed into him like a waterfall. It was common knowledge that she could fill an entire swimming pool with her own precum in just a matter of minutes, and she was in rare form that day as the excess continued to spring forth from between Jack’s enlarged-yet-perky cheeks.

Completely incapacitated, the bunny wobbled from side to side, feeling his buttocks slap against each other every time his friend slammed down into her globes. There were a few times he could have sworn her fluid production skyrocketed after bounding his ass along her balls, but he couldn’t be certain of that. All he did know was that his belly was rapidly expanding, to the point where all of the additional streams of equine juices that slipped out of him made no real difference. What he was retaining was far more voluminous, and it rounded out his stomach with such savagery that his midsection was the size of a one-story house. Thankfully, Cutie was more than kind enough to help turn the expanding rabbit onto his side as she let one of his legs descend slowly to the floor. Laying on his side gave Jack the ability to avoid being crushed, but it also allowed him to expand quite freely, even if hitching up his other leg so high just to be rocked into by Cutie was a bit strenuous.

It didn’t matter, though. Cutie was just about ready to see how big her lapine ally could hold her own vast reservoir of spooge. “Hold on tight, Jack,” she warned, right before the final thrust. “Let’s see if you can hold more than my condoms!”

The sensation was unlike anything else Jack had experienced in years. The entirety of his insides felt as if they were getting hosed down in substantial layers of cream, so t hick it would take a knife to slice through it. Excess spurts of Cutie’s batter enveloped his legs and started to coat them as thickly as Greek yogurt. Jack’s skin was soon encased in the goop as it layered endlessly, splashing back with such ferocity it started to do the very same along his own swinging testicles and shaft. The pressure was so great that the rest of his belly started to balloon outward, his height staying exactly the same. Even though he could have laid down next to a house and been around the same size, his width was something else of an anomaly. It grew so rapidly, being splattered and painted with so much of Cutie’s joy that it soon reached the size of a small town in its entirety. From his hips all the way out to his belly button could have been Main Street in most places around the country, the longest road around and yet still miniscule compared to his girth. From the bottom of his ginormous belly right up to the top could have been any number of homes in suburbia, at least a hundred in total, complete with front- and backyards alike. 

“M-more, please!” Jack eked out the words several times over, trying to work up enough strength to project them to Cutie. All of the commotion from the cream filling the bunny up to his theoretical limit drowned him out, at least until cutie could swear the zeppelin he called a pal was jutting back into her hips with all of his might, just for a little bit more.
“Hold on, I’m almost halfway done,” she teased, right before leaning in with all of her strength and pressing her dick into him as far as she could manage, balls constantly rubbing all along each other in adoration.
It took another half an hour, but Cutie was true to her word. The rest of the cream came as fast as she were able, and upon sliding out she sat there to take stock of the overall damage. For his part, the bunny’s stomach had hit the side wall of the facility some several minutes prior, and was slowly being shoved towards the opposite end thanks to the overbearing pressure from within his belly. By the time Cutie as done and resting beside him, Jack was nearly the entire length of the massive testing facility, well over 1000 feet wide and dozens of stories tall. In a place meant to test macro superheroes the bunny was outsizing the majority of the group save for a few individuals at that moment, all due to his behemoth-sized stomach.

Completely drained for the time being, the unicorn sighed in relief as she rested her back against Jack’s belly. “Thanks for that, sugar,” she panted, “It was really good to go all-out for once! I was afraid I was getting a bit out of practice lately, it being so peaceful!”

“Hold it, HOLD IT!” A large voice cracked through the facility over the installed sound system. “Damn it, you all started without me? I could have sworn I had this test penciled in for 2 PM!” Dr. Chu’s squeaky voice was unmistakable, although it housed a hint of confusion.

“D-don’t worry about it,” Jack shouted back, hoping his voice would carry well enough so she could hear him in the control room. “Didn’t you tell me last week that there are cameras up and recording all the time in here?”

There was a brief pause, long enough that it almost made the bunny repeat himself. “Yes, that’s true,” the mouse intellectual responded at last, ruffling her lab coat in the background. Jack picked up on it and knew it didn’t bode well. It was one of her tics when something was a bit awry. “But, I hate to say it, one of the tests from yesterday blew out the waterproofing on the entire system. It’s been down ever since, and I just got it back up and running.”

“Does that mean what I think it means?” Cutie’s equine ears twitched about as her grin slowly stretched across her muzzle in anticipation.

“You’re right, Cutie. We’re going to have to pamper the bunny until he’s back to normal, then try it all over again. You don’t mind helping us out again, right, Jack?”

With his face assuredly obscured by his town-sized gut, the rabbit blushed and shrugged his shoulders in mock resignation. 
“Well, if it’s for all of you and for science, I guess I could do this one more time!” 

“If it helps any, I can at least tell you something I learned from the last minute I actually saw.”

Both Jack and Cutie responded in kin at the exact same time. “What was that?”

“This bunny has a sweet ass. Come on, shake it a bit more for Camera 7!”