Jon the Growing Stepdad: Chapter 10 -- Spring Break Weigh-In

[spacevlad]

Previous chapters:

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

 

Austin enjoys life with his growing, submissive stepdad. Jon lifts some weights in the backyard, then gets excited after his weigh-in and gets an intense blowjob from his Master.

 

 

 

Chapter 10: Spring Break — Life With a Growing, Submissive Bull Pt1

 

The ground shook as Austin watched the beat-up old Ford F150 rise up into the air and crash back down again, bouncing on its shocks each time it hit the ground. The truck itself weighed somewhere around 2 tons, at least according to what Austin had looked up online when he bought it. Perfect weight to challenge the enormous man hefting it up and down like a medicine ball.

 

Jon grunted as he picked up the truck again, lifted it over his head, and grinned down at his master. “Twenty!” Jon boomed proudly, straightening out his arms all the way, his enormous triceps and delts hard and flexing as he held the truck 12 feet off the ground, gripping the axles underneath. He wasn’t shaking or struggling at all, even 20 reps in; it was getting noticeably easier for him just in the last few days, Austin noted. He’d have to try to find another, heavier truck for Jon to lift with soon.

 

The truck crashed down to the ground again, adding to the muddy divots in the grass of the backyard. Jon was soaked and dripping with sweat despite the cool spring Minnesota air, grunting and breathing heavily, clouds of vapor billowing from his beard-covered mouth. His quads shook as he walked around the truck to come closer to Austin, each one swelling out to the sides with round arcs of muscle. Each thigh rubbed against the other one roughly, the enormous bulge in his white Underarmour compression shorts bouncing as he did, the head of his huge cock plainly visible. The tight athletic boxer-briefs were the only thing he had on except for leather bicep straps, custom-made Underarmour football cleats, and long compression socks that were stretched thin over his massive calves. A wet spot spread over his bulge as he looked down at Austin and grinned.

 

“How’s that, Sir? Bigger?” Jon rumbled, his voice unnaturally deep and loud. He planted the tip of his cleat on the grass, the spikes digging into the dirt, and flexed a calf muscle bigger than Austin’s thigh. The straining socks somehow made it look even bigger. He shook the meaty mass of his quads before flexing them, and they hardened into bulging slabs of muscle. His huge, round gut jiggled too, just looming above Austin’s face. “Do you think I’m growing?” the muscle bear boomed.

 

Austin shook his head. Jon always asked questions like that even when the answer seemed obvious, but he knew it was because he craved the approval of his Sir. “Yes, bull, you’re bigger than ever!”

 

“Oh, hehe, that’s good!” Jon said, a huge grin breaking out on his face. He reached up and stroked his dirty blonde beard, which stretched down into his pec cleavage, sticking to the sweaty expanse of his chest.

 

Austin looked up at the giant above him; Jon had just passed 10 feet tall two days ago and was closing in on an even ton. “Looking easier for you, huh?” Austin said. He reached forward to rub his stepdad’s enormous thighs, running his hands through the sweaty, furry, hard expanse of muscle. Austin came up to Jon’s expansive gut, so his huge legs, barrel chest, and thick midsection were all in easy reach. His knuckles brushed against Jon’s bulge and the wet spot on his briefs grew as another spurt of precum leaked out.

 

“Y-yes Sir, two tons is easy for a giant bull like me,” Jon groaned, trying to control his feelings. His cock throbbed and grew, the head of it poking out above his briefs and burping up more pre. It was very hard to stay focused when Master watched him lift weights. He rubbed his hands up and down his sweaty, furry torso, a mist of sweat rising into the cool spring air.

 

“Good bull, that’s right,” Austin said. “And you’re gonna keep getting stronger. Show me your bench press,” Austin said.

 

“Yes Sir!” Jon boomed, and he went back over to the truck. He laid down on the ground, getting dirt and brown grass over his expansive back, then reached one hand under the truck and pulled it over closer. With impossible strength, he hoisted the truck onto his chest, his pillowy pecs taking the impact of the tires and undercarriage with no problem. He gripped the axles and pressed, lifting 4000lbs of truck into the air like it was a warmup. The truck flew up and down, up and down, Jon grunting and sweating but hardly straining against the two-ton weight.

 

“Light weight, Sir! I need more!” Jon grunted between reps as he lifted and lifted, flying past 25 reps with no sign of slowing down. “Gotta lift big to get big, that’s what you always say, Sir!”

 

“That’s right bull, keep going until 100!” Austin said. He had to adjust his own package watching his giant muscle daddy lifting. His strength was beyond anything he had ever seen, unbelievable if he wasn’t witnessing it himself. Jon’s impossible, endless second puberty had only picked up steam since he had visited his dorm room just over a month ago and Austin had moved back in with Jon. Their total focus and dedication had only accelerated his uncanny growth.

 

Jon threw the truck aside, crashing it onto its side as he roared past 100 reps. He scrambled to his feet with startling speed and energy, seemingly not tired at all despite being two hours into his second workout of the day.

 

“Now, let’s do some cardio!”

 

Austin held up a basketball. Jon instinctively turned and dropped into a three-point stance, facing the expansive backyard, his meaty ass in Austin’s face. “Go!” Austin yelled as he threw the ball as hard as he could.

 

Jon grunted and bounded after the ball, his custom-made oversized cleats tearing more divots into the once-pristine grass of the backyard. Jon ran, the huge, rumbling footsteps of the massive brute eating up space surprisingly fast. His heavy chain necklace jingled as he ran. The ball sailed a long ways, and Jon was so focused on it that he didn’t notice the thin birch tree that stood in his way until he shouldered into it; the tree exploded into splinters and fell over as Jon plowed into it. Seeing his target, Jon lunged onto the ball, squashing it under his enormous weight until it popped open with a crack. Rising quickly, he ran back to Austin just as fast, ball tucked into the crook of his arm, pressed between his enormous bicep and meaty chest. He nearly barreled into Austin before skidding to a halt, tearing up more grass. He beamed down at his master, grunting and breathing heavy.

 

“Another one?” Austin said, looking up at his giant stepdad with a disapproving look. “Throw it on the pile,” Austin said, gesturing to the pile of other broken balls and fetching toys.

 

“Heh, sorry Sir, I got excited,” Jon said as he adjusted the tight leather straps digging into his biceps. Austin had bought the custom, adjustable straps at his local fetish gear shop a couple weeks ago with the intention that they would last for months. They weren’t on the loosest setting of 36” yet, but as Austin eyed Jon’s throbbing, hard biceps and heard the leather groaning, he knew they wouldn’t last long.

 

“That’s fine, pup, I love your enthusiasm!” Austin said, getting another ball.

 

“Ooh ooh, can I do another one? Please?” Jon pleaded, bouncing up and down excitedly as he inched closer to his Sir. Austin knew that Jon could take the ball from him whenever he wanted, but he wanted to please his master and run hard for him. Sprinting made his legs and lungs stronger for master.

 

“Ready?” Austin teased, and Jon dropped into a three-point stance again, like a giant football player. “All the way down this time,” Austin said, and Jon dropped onto his stomach with a thump, the nearly plants and trees shaking from the impact. “Go!” Grass ripped up from the ground as Jon exploded off the ground with terrifying power and he launched himself after the ball again.

 

They kept at this for half an hour, Austin working Jon until he was a sweaty mess, the dense fur covering every inch of body soaked and curling with sweat, dirt covering his cleats and calves, his compression shorts soaked through. When Austin finally said that was enough, Jon was panting and tuckered out.

 

“Bring it in, pup, such good work,” Austin said. “Here you go,” he said and held up a gallon-sized jug filled with brown liquid.

 

“Hrrrrmmmmmph just what I need!” Jon grunted as he grabbed the jug, his fingers easily wrapping all the way around it, and started chugging the thick, viscous shake.

 

Austin marveled at how quickly the big man could consume, watching his Adam’s apple bob up and down, listening to the gurgling, groaning, throbbing sound of Jon chugging the 4000 calorie shake. Austin looked up at Jon’s round gut noticeably expanding as it filled up with protein shake until the arc of it brushed against Austin’s forehead. In seconds, the jug was empty.

 

“Ahhhh, that hit the spot, Master!” Jon sighed contentedly as he rubbed his belly, bumping Austin backwards as he did. “More?” Jon asked eagerly as he looked down as his diminutive master, his cock throbbing as he did.

 

“Later, bull. First it’s time for our daily weigh-in!” Austin said and he gestured over to the scale.

 

Jon knew the drill. They followed the same routine every day, lifting and feeding times regimented and organized, weigh-ins and measurements regular and tracked by Austin’s diligent eye, calories and nutrition and exercise optimized for maximum growth. They had an industrial-size scale that was meant for livestock set up on the back deck, which was a couple feet elevated up off the ground. Jon lumbered over, the deck straining under his mass as he walked across, his ass shaking and jiggling up and down as he waddled.

 

Suddenly his right foot broke through the wooden decking and he fell forward and down a foot or two. “Uh oh! Sorry Sir. Rrrruuuuffff, grrrufff!” Jon grunted as he ripped his foot up through the decking, tearing up more of the deck as he kept walking over to the scale. Casual, accidental destruction was becoming more and more common with Jon as he grew beyond normal human scale. The scrapes and holes that dotted the ceilings and the cracked, partly-destroyed doorways in the house were testament to that.

 

Jon stepped on the scale until the number evened out.

 

“1824 pounds! Great job, bull. Boy, you’re getting so big, aren’t you?” Austin said, praising his prized bullpup as he rubbed Jon’s huge, round ass.

 

“Yeah, always bigger, always more, that’s what you always say, Sir,” Jon grunted. “I gotta keep growing, right?” Jon stepped off the scale and turned to face his Sir, looking down at him from over the round hills of his pecs and gut. Sweat dripped down off his nose and nipples, some of it splashing on Austin.

 

“That’s right, pup, always bigger, always more!” Austin repeated. It was the mantra that Austin had come up with since he had moved in to help keep them both focused and motivated on their shared goal. Every aspect of their lives was focused on one thing: to grow Jon as big and strong as they possibly could.

 

“Yeah,” Jon breathed, steam puffing into the air. He looked up into the grey sky and raised his arms up into a flex, steam and heat from his sweaty pits radiating off him. “MORE!” His arms were spread wide, biceps flexed, his forearms spread out at a 45 degree angle, making the biceps look extra thick.

 

Jon’s bulge throbbed and swelled in his Underarmour until they stretched the white material close to bursting. The cock head surged and poked out at the top as if it had a mind of its own. Jon grunted involuntarily as a glob of precum gushed out and splashed onto the grass in front of Austin.

 

“You worked so hard today, bull,” Austin said, looking up at his submissive daddy. They locked eyes, staring intensely, each of them breathing heavily, cocks throbbing. “Let me help you with that.”

 

Austin stepped forward and tugged at the hem of Jon’s shorts until he freed the rest of the meaty, Pringles-can sized cock from its confines. The heady, funky smell of Jon’s crotch and balls wafted into the air, steam rising from his loins. Austin huffed in the smell, sending tingles of excitement down his spine. He was at the perfect height now to suck Jon’s dick while standing. He opened wide and gobbled up as much of his pup’s cock as he could.

 

“Ohhhhhhhnnggggg Sirrrrrr,” Jon groaned, a bassy rumble filling the air, deep enough to rattle Austin’s ribcage. “Rrrrrrruuuuuffffff,” he moaned unintelligibly.

 

Austin pushed deeper, the massive cock head filling every inch of his mouth, jamming it until it scraped the back of his throat. He could only swallow up about half of its length now and barely wrap his lips around it. He was well-practiced with it at this point and didn’t gag, though he knew that he wouldn’t be able to take such a huge cock for too much longer as Jon grew more and more.

 

“Yeahhhhhhh, gotta grow more for my Sirrrrrr,” Jon purred. He reached down, past the love handles of his huge gut, and wrapped his hands around Austin’s chest, easily lifting him into the air. He brought Austin up to his bearded mouth and kissed him roughly, his tongue plunging into Austin’s mouth aggressively. “Morrrrrrre,” he groaned as he walked over to the wall of the house, protein breath washing over Austin as Jon breathed heavily. Jon plopped Austin back down to the ground and brandished his cock like a club, thumping Austin in the face with the swollen, throbbing member. “Harrrrrder,” Jon groaned, his thoughts focused only on pleasure.

 

Jon slammed his weight forward into Austin’s awaiting mouth. Jon looked down and couldn’t see anything past the expanse of his enormous furry muscles and round power gut. He could feel Austin sucking and choking and gagging on his cock but couldn’t see him at all. Jon was just too big.

 

“So big. The biggest!” Jon moaned, humping his enormous body against Austin. He leaned forward onto the house, bracing against the wall with his thick, veiny, hairy forearms, leaving smears of sweat against the cold siding.

 

Austin could only groan and brace himself against the huge thighs that surrounded him. He pressed his arms against the huge, heavy gut that pressed down on him, but it was futile; it was simply too heavy. Austin felt himself squeeze harder against the wall of the house as Jon humped harder and faster, picking up steam.

 

“Always bigger, always more for you, Sir!” Jon groaned as he plowed his master’s tight mouth. His Sir had given him purpose and value and meaning, all he ever needed. The thought of growing even bigger, of swelling beyond the impossible size he had already reached, of making his master even happier and even more proud of him, filled him with euphoria. His cock throbbed harder and more precum oozed down Austin’s throat.

 

“You like how strong I am now, Sir?” Jon asked, an edge of pleading and begging in his sonorous voice.

Austin grunted and groaned, his throat choking on the massive cock as he tried to respond.

 

“You want me to keep growing bigger, Sir?” Jon groaned, his deep voice straining as his cock throbbed harder and harder.

 

Austin moaned as loudly as he could, needing his pup’s cum.

 

“I’ll do anything for you Sir, I’m gonna be the very biggest for you, Sir, all for you Sirrrrrrrrahahhhhhhhhh!!!!” Jon roared as his cock exploded, his huge balls tensing and throbbing as jets of cum sprayed directly down Austin’s throat, feeding his master his potent bull cream.

 

Austin gulped furiously, trying to cope with the intense volume of cum flowing into him, but it was no use. Spurts of cum dribbled from his mouth and onto his beard, mixing together with Jon’s sweat in his sweaty, bushy pubes. Jon leaned into Austin harder until every drop was drained, grunting and groaning loudly.

 

Jon arched his neck and back and sighed contently, a plume of steam rising into the air, satiated for now. He was proud to give his master a thick meal of bull cum.

 

Jon stepped back and Austin coughed and sputtered, cum drooling down his mouth and covering his beard and parts of his shirt. He grinned up at his pup. “Good work, bull, wow that was some load! You were really worked up, huh?”

 

“Heh, yeah, grruuuufff, love humping my Sir’s face I guess,” Jon said, raising his arm up and scratching the back of his head sheepishly. As he did, his enormous tummy rumbled loudly, demanding more food.

 

“Sounds like it’s time to eat!” Austin said, staring up at his big pup.

 

Jon rubbed his round belly and licked his lips in anticipation. “Sure is, Sir. I’m STARVING!” Jon rumbled as his gut growled again, louder and longer.

[Ro20316]

They are both making their wildest dream come true