Jon the Growing Stepdad: Chapter 14 -- Graduation Fuck

[spacevlad]

Previous chapters:

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

Chapter 10

Chapter 11

Chapter 12

Chapter 13

 

 

Chapter 14 — Graduation Fuck 

 

 

Austin pulled into the driveway of their house, the truck laboring as he shifted into park. It wasn’t meant to haul around this heavy of a load in the bed; the handling and acceleration was awful the whole drive home, and he could smell burning rubber whenever he hit the brakes. They would need to upgrade the truck to something bigger soon to keep up with Jon’s growth.

 

Austin came around to the tailgate and opened it. A slimy layer of precum dripped out of the truck bed and onto the driveway as he did, and Austin looked up to see Jon sheepishly scratching the back of his head, exposing his enormous furry armpit and flexing his titanic bicep. His jock was soaked with pre and a steady stream of it leaked out of his cock head.

 

“Oh pup, you’re just raring to go, huh?” Austin teased as he gestured for his big daddy to get out of the truck. “All that vibration from driving got you even more worked up, I bet,” he said.

 

“Grrrmmmpphhhh, ruuarrrfff!” Jon whined as he shifted off of the truck and onto the ground. He rose to his full height, towering over Austin, literally twice his height and over twelve times his weight. Jon reached up and adjusted his harness, the leather creaking and metal studs and rings jingling against his neck chain and padlock.

 

“Come around to the backyard,” Austin said as he led his bullpup around the house. Jon didn’t fit inside the house anymore, not comfortably anyway. Austin had started the process of finding a new property to move into, ideally one with a large warehouse or hangar or barn that could be converted into a living quarters for the growing brute. Jon’s growth had only accelerated over the last few weeks and showed no signs of stopping anytime soon; Austin had to plan for BIG things in the future!

 

Suddenly from behind, Austin was grabbed and lifted up and spun around.

 

“Mmrrowwff, mmphhh!!” Jon grunted as he nuzzled his pup mask against Austin, rubbing his Sir. He lowered him down and started rubbing Austin again his sweaty, furry chest and gut, then lower still until Austin could feel Jon’s slimy cock pressing insistently against his pants.

 

“Whoa there, pup, so eager to please your Sir, aren’t you?” Austin said calmly. He was used to his pup getting boisterous sometimes when he was excited and knew how to handle him. “Well first we need to do another weigh-in. Put me down and hop on the scale, bull,” Austin commanded.

 

“AARROOOF!” Jon boomed, still locked into pup-speak. When he was in pup space like this, he was only capable of simple thoughts and ideas and speech, but that’s how his master liked it.

 

Jon set Austin down and then waddled over to the scale. They had set it on the concrete pad next to the deck after Jon had partially destroyed the deck a few weeks ago. The scale creaked and groaned as Jon stepped on. Jon, of course, couldn’t see down to what the number read; his blond and grey bushy beard, enormous shelf-like pecs, and round, hard gut blocked his view.

 

“Wow bullpup, we finally did it. We passed the limit!” Austin said excitedly. “Over 3000 pounds officially, pup. Goddamn you’ve been growing FAST lately!” Austin said as he reached up and smacked Jon’s round, meaty ass that protruded from the tight straps of his jock. “You don’t seem to be slowing down, pup, you just keep growing more and more!”

 

Jon stepped back off of the scale and looked down at his Sir. He grinned through his pup mask, cocked his head to one side, and brought his fists together. He flexed hard, the fur of his pecs curling into wet rings, sweat dripping down off his huge, meaty nips onto Austin.

 

“Bigger?” Jon grunted, knowing the answer but still wanting to hear it from his master.

 

“That’s right, bull, bigger than ever, growing so much for me like a good pup,” Austin cooed, reaching up to rub Jon’s round, solid gut and furry, sweaty chest, which he couldn’t quite reach. “Still gotta keep getting bigger though!”

 

“WWRROOOOOF!!” bellowed the big daddy muscle bear. “BIGGER!” He straightened to his full height. Jon’s throbbing bulge strained his jock strap and threatened to rip it open.

 

Austin walked up onto the deck and gestured for Jon to follow him on the ground. The deck was about two feet raised up off the ground, which gave him a little more height. The wooden railing on the deck was still in the way though.

 

“Tear out this railing, pup,” Austin said.

 

Jon reached down and grabbed the railing at the base where it connected with the deck boards and tugged up hard with a grunt. The railing tore out with a loud snap. He did this one-by-one until the whole thing was disconnected.

 

“Destroy it, pup, tear it all apart,” Austin demanded, rubbing his erection as he watched his big stepdad manhandle the heavy deck wood.

 

“RRROOWWFF!” Jon boomed happily, then brought his fists down on the deck railing hard. Wood splintered and the deck shook. Jon grunted as he grabbed the top railing and pushed down and in, pressing and snapping the wood together like an accordion. He tossed half of it into the yard, laughing and grunting, then shifted over and did the same on the rest of it, relishing the opportunity to use his strength without holding back, his muscles tensing and bulging, veins throbbing as he destroyed the deck railing in seconds.

 

“That’s my pup, big and strong!” Austin said. “Down on your knees, pup, now,” Austin ordered.

 

Jon thumped down to the ground, the earth shaking as his tonnage dropped hard. He was kneeling in front of Austin, who was almost at eye level now. Jon’s gut surged forward onto the deck, his bulge pressing the side of the porch, his wide shoulders, harness-bound chest, and massive arms filling Austin’s field of view.

 

“Flex for me, pup, show me those muscles,” Austin said, stepping closer to Jon.

 

Jon raised his arms up and flexed his biceps, the round, hard peaks exploding up like mountains. Every inch of his torso was covered in dense, dirty blond fur, matted and curled by sweat. Jon’s pits were exposed as he flexed, and Austin was assaulted by the heady, cloying stink of Jon’s musk.

 

“This new cycle has you smelling extra good, pup,” Austin said as he stepped closer, reached up, and squeezed the impossibly huge biceps. He buried his face in Jon’s left pit and huffed deeply, smearing bullpup sweat all over his nose. “Mmmph yeah that’s it, such a good pup. Big stepdad muscle bull. Who would have thought you’d ever be THIS big nine months ago, huh?” Austin said, feeling high on the distilled testosterone stench of Jon’s wet, furry pits.

 

“Arrrrawarruff!” Jon rumbled as he brought his arms down, trapping his Sir in his deep, furry pit. “Am I a big bull pup now, Sir?” Jon asked, his voice muffled in the neoprene and leather mask.

 

“Yes, bull, but not big enough… never big enough!” Austin said, his own voice muffled by Jon’s furry pit, his hands wandering over to Jon’s immense chest, his fingers running through the dense fur and long beard trailing against Jon’s pecs. He grabbed the thick, sturdy leather of the harness straps and pulled hard, but Jon didn’t budge. He was so heavy, too sturdy, too strong.

 

“Gotta grow bigger for my master,” Jon whispered, his eyes closed, every touch from Austin sending fireworks of pleasure up his spine. His cock throbbed and pushed up and out further from his jock strap, belching up more pre. He squeezed Austin into a tighter headlock and growled until Austin tapped his big arm, signaling him to let go and come up for air.

 

“Need to mark my territory, bull. You’re mine now. Isn’t that right?” Austin said, huffing Jon’s stink against his upper lip, his hands rubbing more frantically against Jon’s giant body, exploring the wide v-shaped lats and trailing down to his round, hard, furry gut.

 

Jon sighed contentedly when he heard those words. “Arrroooof, mmmrrrooof!” Jon breathed, then brought his arms around Austin and pressed the smaller man against his big body.

 

Austin tugged down on the harness again, clinking the padlock against the central ring of the harness. “Kiss me, pup, now, hard!” Austin said, just as desperate to make Jon feel good as Jon was to make his master feel good.

 

Jon leaned down and nuzzled his Sir, their tongues wrestling as they kissed hard and sloppy, their beards brushing against each other roughly.

 

“Taste my hole,” Austin demanded, and Jon obeyed. Jon grunted as he grabbed on to Austin’s dress pants and tore them apart, ripping and shredding and tearing until they fell to the ground, revealing Austin’s hard 8” cock and bubble butt. Austin had grown thicker and more muscular over the last few months training and eating with Jon, and he looked sexier than ever.

 

Austin bent over and turned around, revealing his tight, furry hole. It was sweaty and musky, which now started to mix with the light rain that began to fall, coating them both.

 

“MMMPH, grrrff!” Jon growled as he dove into Austin’s meaty ass, his pup mask snout pushing his cheeks apart to get to Austin’s tight hole. Jon’s thick, powerful tongue reached up and dragged slowly against Austin’s hole, causing the smaller man to shiver and groan. Jon pushed his tongue in harder, insistent, pressing past any resistance and penetrating his Sir. Even his tongue had grown bigger and stronger over the last few months!

 

Slurping and sighing happily, sniffing master’s deep, sweaty musk, Jon ate Austin’s furry hole relentlessly, pushing him hard so Austin had to brace himself against the porch. Jon buried his nose deep in his master’s crack and then shook his face back and forth, his metal chain clinking around like when a wet dog shakes himself to get dry, sending another wave of stimulation surging through his Sir’s tight, muscular body.

 

“Mmmmph, grrrfff, mmmmlllaaahhh!” Jon growled as he pushed his tongue in deeper, deeper, fucking his Sir’s hole with his huge tongue, slurping up every morsel of football jock hole he could get.

 

“Lift me up, pup!” Austin groaned. Jon backed up, removing his tongue from Austin’s ass, and stood back up to his full height. He reached down and Jon’s huge, calloused hands wrapped around Austin and lifted him up effortlessly. Austin straddled Jon’s thick bull neck and massive traps with his legs, his ass resting on Jon’s chest-like pecs, his cock right in front of Jon’s pup snout. Austin looked down at Jon’s intense, focused, pleading eyes through the pup hood, his own cock throbbing and leaking, rain dripping down onto both of them.

 

“Get your tongue back in there, pup, I need more,” Austin commanded, and Jon lifted and pressed Austin’s 250lbs like it was nothing. He raised Austin up, leaned his head back, and slurped out with his tongue, lapping up against the tight, sweaty, furry hole of his Sir.

 

“Ssssslluurrrp, mrraraahahhhh, mrroooof!” Jon grunted and breathed as he slurped and licked. He lowered Austin down until Austin’s weight was fully pressed down on his mouth and tongue, allowing him to push in even deeper and rub his master’s jock stink all over his mouth and pup mask.

 

“Oh god, yes pup, eat my hole, making your Sir feel SO good,” Austin moaned. He reached down and steadied himself on the smooth, dark neoprene of Jon’s pup hood, which was becoming more slippery as the rain increased in intensity.

 

After several minutes of this, Austin had Jon put him back down on the deck.

 

“Back on all fours, pup. Head up, good,” Austin ordered, Jon dutifully moving however his master ordered. “Turn around, pup, let me see that ass,” Austin said, breathing heavily as he still felt the stretched-out presence of Jon’s tongue in his butt.

 

“WRROOOOF!” Jon rumbled as he rotated around, his knees and fists pressing into the worn-down grass and dirt, which was starting to get muddy as the rain came down. He planted himself facing away from Austin, head held up high, his wide, furry, muscular glutes bowing out round to the sides and towards Austin. His enormous hamstrings framed his round, heavy balls, which were barely contained in his oversized jock strap. His silicone butt plug tail was enormous, three feet long and as thick around as Austin’s upper arm at its widest point; it bobbed back and forth, up and down as Jon parked his ass in front of Austin.

 

“Time to remove your tail, pup,” Austin said teasingly. Jon groaned as he felt Austin’s rough hands rake across the edges of the tight, filling plug. Austin pulled with all his might, and the massive plug slowly inched out, dragging across the inside of Jon’s hole, slick and wet.

 

Jon bellowed as the huge plug came out, the heavy black tail thumping onto the deck next to Austin; the custom-made item was deceptively heavy. Left behind was Jon’s twitching, furry, pink, stretched-out pup hole, framed by Jon’s jock strap.

 

“Get that ass up in the air more,” Austin said, stepping closer to his bullpup and pressing his face against Jon’s deep, furry crack. Austin licked and huffed his pup’s musky hole, causing it to twitch and pulse more.

 

“AarrOOOOF!!” Jon rumbled, squirming and groaning as his Sir worked his hole. “MmMMMRPH, aaarrUUUFF, FUUUCK,” he groaned as he pressed his ass back harder towards the deck, his boots and knees digging into the muddy ground, his fists clutching a handful of grass and tearing it up as pleasure electrified his body.

 

Austin rubbed his beard over Jon’s sensitive hole, licked up and down, in and out, all around, making his bullpup squirm and whine and bark. He came up for air with a gasp, the heady stink of his pup’s sweaty musk covering every inch of his face, breathing it in like perfume. “Drop that ass, pup, your Sir needs to plant his seed now,” Austin growled.

 

Jon obeyed, dropping lower so his Sir could get at the right angle. He whimpered and twitched and panted in anticipation. He could feel his Sir’s hard, wet cock pressing against the outside of his hole. He could feel his Sir’s muscular torso leaning against his round, hairy ass, could feel his knees pressing against his hard hamstrings, could feel his arms reaching up to just barely grab on to his heavy leather harness and pull down and back.

 

“You want your Sir’s cock?” Austin growled as he ground against Jon’s furry, sweaty crack, the rain mixing with the pre and sweat to make it slick.

 

“Mmmrrrphhh, mmmm!” Jon whined desperately, his ass wiggling back and forth.

 

“You think you deserve your Sir’s load?” Austin teased, pressing against Jon’s hole, right on the doorstep.

 

“Uuurrrfff, arf, mmmh!” Jon begged, pressing back against the cock head that pressed against his pucker, small to his perception but powerful in what it meant to the two of them.

 

“Such a good pup, you DO deserve your Sir’s cock!” Austin roared as he punched his way inside of Jon.

 

“AAARRRUUUUUUFF!!” Jon bellowed as Austin thrust inside of him. His powerful glutes wrapped around Austin’s cock and squeezed tightly.

 

“My big GROWING bull, all mine!” Austin growled as he started pounding into his bullpup with reckless abandon.

 

Jon’s hole gripped his Sir’s cock, fitting together perfectly. Jon grunted and growled as his master filled him up; there was nothing more satisfying than feeling Austin inside of him, being this close, enjoying the fruits of Jon’s labor. Serving his master and making him happy was as gratifying as sex, as necessary as breathing to Jon now. Austin’s lust-filled grunts and moans sent shivers of happiness down Jon’s muscular spine, and he pushed back in time to Austin’s thrusts to increase their mutual pleasure.

 

Jon planted his fists harder into the wet grass, sinking them into the ground to gain more traction as Austin pounded harder and harder. He raised his head proudly, arching his big back and feeling his jock-bound cock scraping against the ground, the head of it pressing hard against the ground and scraping up grass.

 

“Feel me breeding you hard, bull?” Austin grunted through gritted teeth. He panted and pushed his cock deeper, more aggressively, roughly. He knew his big stepdad could take any kind of force he put into it.

 

“GRRRUUUFFFF, MMMMPH!” Jon growled. His harness and chain jingled steadily as Austin’s pounding cock sent shivers through his big body. Rain and sweat dripped off of him, slicking up the dense fur covering his back and shoulders.

 

“Sir needs to mark his territory, bull,” Austin groaned. Jon growled deeply, his voice resonating in Austin’s chest. “Sir needs to keep his pup’s hole full of his seed so you know you’re mine,” Austin breathed, his cock throbbing and swelling, his balls growing tighter and more sensitive.

 

Jon bellowed and groaned unintelligibly in response, pushing back even harder on Austin, almost knocking him over, but Austin was able to brace himself.

 

Austin reached up and gripped Jon’s harness harder. He thrust in deeper than ever, deeper than Jon had ever felt, and something in him broke; happiness, completion, satisfaction, and euphoria washed over him. His hole clamped down tighter around his master’s cock.

 

“Yeah, take it!” Austin breathed, slowing his rhythm as he took in the full, monumental scope of the wide, muscular back and huge, powerful ass gripping his cock. “Take my fucking load, bull, unnnngggg!” Austin groaned as he felt Jon’s hole squeeze his cock and milk the cum out of him like a suction hose.

 

Jon threw his head back and howled into the sky, rain pattering off his pup mask, his own cock leaking into the wet ground and digging up more dirt, his huge ass threatening to knock Austin over.

[Ro20316]

On 10/24/2022 at 8:34 PM, spacevlad said:

Jon threw his head back and howled into the sky, rain pattering off his pup mask, his own cock leaking into the wet ground and digging up more dirt, his huge ass threatening to knock Austin over.

Jon's transformation had been aweome. Austin's use of his powers on him is perfect. He created the man of his wildest dreams

[hunktrond]

Will you continue the story furthet????