Whoever had made this shorts must've put some elasticity in the seat of them, as the fabric curved and stretched outwards along with Xax's growing rump. The energy Foxx poured into it forced it to grow the quickest this time, rounding out the drake's posterior several inches by the second. The hem of his drawers rose up on his thighs until the entire length of his legs was exposed. Even still the hem continued to rise up on his billowing bottom. Surprisingly, the waistband remained over the top of Xax's rump-cheeks as they inflated with adipose, forcing the spheres to grow into the stretchy fabric of the britches. It was like watching a pair of khaki balloons connected to an air compressor, but instead of lifting higher, they sagged lower to the ground. That wasn't to say they didn't grow upwards, however, as there was more than plenty of girth to force increase in the vertical size. His tail twitched as it was lifted atop the widening globby globes, pleasure clearly evident by the motion.

Xax reeled his head back at the flood of sensation that was obviously thronging his senses. His paws were still pressed into his zaftig-zeppelin belly, but the growth of his posterior was visibly felt by the drake. Foxx reached downwards with one paw, pressing against the underside of Xax's haunches through the stretchy-shorts as he forced a look of concern onto his expression.

"Hm, your mortal rags are concealing the glory of your ascension to sainthood," he rumbled as best he could, "while your bodies various assets are simply progressing magnificently, you will need to slough yourself from these fabrics that obscure your grandeur."

"And what, my lord, dost thou recommend?" Xax's words drawled as he fought to maintain character through the incredible avalanche of sensation surging from his belly and buttocks. They were so big! Bigger than Xax had ever been before! He had always had his suspicions about his ability to store energy, but never imagined he had THIS much potential to puff out!

"Why, my dear servant, by merely lending you more glory until you... transcend them," Foxx said. "Prepare thineself!"

Xax actually did unleash a groan this time as Foxx darted around and slapped a paw on each butt-cheek, pumping more electricity through his arms and into Xax's bench-filling booty. They bounced under the increased flow, reflecting such by accelerating in their growth. Fatty filling spilled over from his rump and into the rest of his body, expanding his thighs to match his derriere, growing the lower half of his back into a steppe of fat-rolls, and even swelling out his gut some more. But the clear champion of growth-rate was his tush as it began to engulf his tail in the beige fabric-covered rondures. Foxx had to continually step back and occasionally throw his robes behind as Xax's hind-quarters grew to fill the space. It wasn't long before Xax's tummy was dwarfed by his expansive backside's growth, the drake's arse beginning to make the garage-sized throne room feel crowded. His tail soon was lost to view as the cheeks finally swallowed it up in their hugeness, the perpetual heaving wobbles displaying just how far Xax had come in mere minutes. The khaki-covered orbs rose higher than Xax's head, Foxx losing sight of the rest of the drake and only seeing cloth-covered cheeks. The electricity vulpine was legitimately beginning to wonder what exactly the stretchy clothing was made from when he heard a dull *twang. *

It was like every single thread struggling to contain Xax's rump collectively decided to unleash the greatening girth. Countless lines in the fabric suddenly appeared and widened, revealing the crimson scales beneath, the adipose-stuffed glutes bulging and squeezing through the new tears. The force of Xax's spilling fattiness forced the rips even wider, the splits in fabric becoming hug holes that soon joined with other holes to make even larger gaps in the rapid destruction of Xax's shorts. The electric dragon groaned as his arse exploded his pant-seat, allowing the gelatinous orbs to burst free of their fabric prison, seeming to swell out several feet, despite the rate of growth never having changed.

Foxx ceased his flow of energy, stepping back to take in how titanic a leviathan he had made Xax into within mere minutes. Audible panting came to Foxx's ears that he recognized as Xax, the drake's face coming into view and a dopey grin plastered visibly on the drake's face. A few scraps and rags still clung to the circumferences of his rump's twin-balloons.

"Very excellent, my disciple," Foxx said, unable to keep the coo out of his voice, "very, very excellent. Your faith is strong! But... you have one last trial remaining."

"And... what dost... thy lordship.... request of his humble servant?" Xax panted, shivering and shaking strongly enough to send waves surging through the surface of his belly and tush fats.

"A test of character, or as you mortals know it, an evaluation," Foxx said, "but I will be weighting your soul and you will not need to input effort. However, the presence of my divine power will make you ascend into full saint-hood. So you must choose now: dost thine heart truly want this?"

"Yes... more than anything," Xax said.

Foxx smiled warmly and grabbed a pawful of Xax's belly, hoisting himself up and ascending the hilly gut, cresting the top plateau and walking across the round peak towards Xax's torso and head. Despite the sheer enormity that had grown the dragon out so fatly and filled a solid portion of the room, his upper torso and head remained mostly slim, with the barest hints of chub dotting the lower portions of the area. Foxx reclined atop the mesa of Xax's massiveness and splayed one paw over the drake's flat chest, smiling with unrestrained flirtation. He smiled back, tired but fully capable of keeping up as a sly grin crossed his features.

"Then let it be," Foxx said, pressing his other paw into Xax's chest and unleashing with all the electricity he could muster.

Xax's chest was already commendably large, albeit nigh-anorexic in comparison to the rest of the present results of his swelling. But now, his chest bloomed out almost explosively with girth. It was with such extreme speed to almost be immediate that his rib-cushions grew into a greater circumference. They pressed against Foxx's face and body, shortly thereafter cascading over him as they fattened out, forcing the vulpine to stand up. But even as he did, Xax's bosom surrounded him and Foxx felt himself get wedged between the growing spheres. His arms were trapped to his sides, but remained in contact with the flabby scales that grew flabbier by the second, allowing Foxx to continue to pour his girth-inducing energy into the living battery of Xax's fat-inflating body.

Foxx pushed against the advancing tide of Xax's expanding cleavage with a pleased wriggle, staying as close as he could to the drake's face. The facade of his character wavered as he pressed against the behemoth boobs and they squished him back in his arrested movement. A look behind him revealed the horizon of Xax-belly was rapidly being overtaken by Xax-boobs, his traffic-stopping-bra-busters having rose as high as mid-size hills.

Turning his attention back to Xax, Foxx made notice just in time to witness Xax begin to fill out in the facial area.

His neck began to bellow wide, shivering as its girth multiplied. The drake's shoulders began to crowd in as they fattened, gaining visible mass that pressed inwards. His chins multiplied with the growth of his neck, jiggling with ample display of his body filling up and out with lipid content. His cheekbones vanished underneath his cheeks as they puffed out, making it initially appear as if Xax had stuffed his mouth full of food. He smiled cheekily, dimpling his fattening face as his cheeks began to grow larger than his head, so thoroughly filled with lard that his face was beginning to appear nigh comical. It wasn't long before Xax's cheeks bumped against his shoulders and his jowls began to block Foxx's view of his head. But despite that, Foxx continued pouring his energy into the draconic blob.

Maintaining the flow of fat-inducing energy, Foxx wiggled between Xax's boobs in a mixture of pleasure and legitimate effort to climb higher in the drake's cleavage. Foxx was almost entirely encapsulated in the drake's bosom, the boobs having rose over twice of Foxx's height. But at the rate they grew, Foxx found himself in an incidental race against the bulging breasts.

"Heheh, looks like someone's having fun," said Xax, his chuckle issuing ripples through his many chins and weather-balloon cheeks.

"I can't help it," said Foxx, also dropping the role-play character he had in favor of savoring this moment, "and you're one to talk, you look like you're having one /swell\ time, big boy."

---

This is a collab/trade that  TheCaptainFoxx and I did, where he drew three pictures of Xax getting more blobbish and I colored them as well as wrote the story that inspired it.