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Otis woke up early as he often did. The 40-something year old rottweiler rolled out of his bed, giving a scratch to his boxers-covered ass as he left his room and wandered down stairs. The thing that had urged him down was the sudden ring from the doorbell. Usually, he would have taken a few minutes to take care of the prominent tent in his loose, thin boxers. It was a shame that his sons were still asleep, ones to sleep in a bit unlike their old man. But they made him proud, but being proud, strong, and certainly virile young men. He could certainly attest to that.

But the matter at hand was the ring at the door. With his cock still hard he unashamedly opened the door to find no one there, instead there was a small box on the welcome mat. It was a dark blue color and had a little note on top.

After picking it up, Otis read the words. The address was blank but it was thanking someone for buying their product. Reading further, he became intrigued, knowing very well the vague language used by companies that sold sexual products. Apparently, there were some kind of pills that guaranteed passion, lust, and insatiability with permanent effects. He still had no idea who they belonged to, but he hoped they didn't mind if he took it for himself.

After slamming the door, Otis set the box down on the kitchen table and first made himself something to eat, preparing some simple scrambled eggs with some bacon on the side. The entire time, his dick was still hard, awaiting to see if the promised effects would hold true. He ate and got his fill before he finally approached the box. After pulling the ribbons off, he lifted it, only to see that there was a single pink pill and another note.

'WARNING! EFFECTS ARE IRREVERSIBLE!'

Otis just scoffed and picked up the pill. It was small and oval shaped, he already had some water waiting and took a swig as the pill sat on his tongue. It was easy to swallow down, and as it fell into his stomach, he felt nothing at first. He waited just a few more minutes before figuring that it was all a hoax. With a sigh he got up but then noticed something. That familiar swaying between his legs was lessened.

The canine looked down and saw that his cock was...shrinking! He pulled his boxers down and it was growing smaller and smaller.

"Oh shit..." Otis said, feeling his heart pound. He could only watch as his once proud, long and thick cock was reduced less and less before it was just...gone.

For a moment he was going to despair at the loss of it, but there then was a strange sensation between his legs, a sudden heat and burst of tingles. Just a second later, it was much stronger, making his body shake and double over. Though he had no cock, Otis felt like he was being licked by a soft, warm tongue. He couldn't stop himself from huffing at the air, rocking his hips. The pleasure was only getting stronger, making him confused as to what was happening to him.

Hidden within his boxers was the shifting of his loins, his balls had also shrunk, but sunk in on itself. There was a slight pain as a hole formed, steadily expanding. What was once a fat pair of balls and a hefty cock, was now a slit, soft lips that were already dripping with his lust.

The sensations dulled, but the heat remained. Otis grunted and pulled down his boxers, only to see that he now had a pussy between his strong thighs. Taking heavy breaths, he touched it and shook. It was sensitive and he couldn't stop himself. His fingers continued rubbing over the wet folds, smearing his fluids over them. He could smell his new scent and it made his mouth water heavily.

"Aah... Fuck... I can't stop... Mrrpph!" He slipped his fingers inside and got busy pumping them, shuddering and grunting as he stood in the middle of the combined living room and kitchen.

His ears registered the sloppy noises of his soaked fingers rocking back and forth inside of his tight vent. He squeezed down on them and rubbed against his walls faster, experiencing sensations never felt before, but it wasn't enough. The pleasure just stayed where it was, not rising any higher. He needed something more...

With a frustrated snarl the heated canine pulled his fingers out and was instantly drawn to the intense smell. A smell that he knew all too well. He was in heat...

Woken up by some of the noises in the kitchen, Jodie opened his eyes and started to stretch. He instantly felt strange, his dick was so hard, more than the morning wood that he was used to. His nose was bouncing on the end of his muzzle and he instantly picked up the intense smell. Without even thinking, he threw the blankets back and went to find it, suddenly having a need to take care of his throbbing and leaking cock.

He stepped into the living room to see his dad sprawled on the kitchen table, grunting and growling as he was back to pumping his fingers inside of himself, trying his hardest to get off.

"D-dad?" Jodie asked.

The older rottie looked up and laid eyes on the younger of his sons, Jodie. Just like the rest of them, he was built strong and tall. The black and brown canine was stunned, but his cock throbbed hard in his boxers, already making a mess as his pre bled through his briefs.

"J-Jodie. Get over here and help your old man out," his father pulled the thick digits in his pussy free, revealing the pink wetness between his legs. His heat-scent spread out and his son was already approaching him, taking heavy whiffs and even drooling.

Jodie wasted no time getting close to his dad, lowering his body and lunging his head forwards. He shoved it between the muscled thighs and got to licking, smearing the slightly sweet taste all over his tongue.

"Oh fuck! That's a good boy! Work that tongue! Push it deep inside!" Otis commanded, finally feeling the pleasure he was looking for. A noise came from his son, but their licking got stronger, slopping sounds coming from his son as his tongue twirled and snaked deep inside of him.

Jodie still took deep whiffs as his nose was slathered in the warm juices. It made his whole body pulse, triggering those innate desires within him. He couldn't stop licking if he wanted to, curling in along the walls, lapping up more of the slick fluids. With a growl of his own, he took hold of his father's thick thighs and pushed them further aparts, pushing his face into the folds.

Otis panted hard, gripping the side of the table with one paw. The pleasure was so much, more than he ever felt and it was only building, He wanted more of it and with every lick it was like electricity zipping through him. In his ears were the grunts from his son, muffled noises of delight, likely from his taste.

Jodie pulled his head back, but quickly replaced his tongue with his fingers, pushing three thick digits inside, they started rocking back and forth quickly, making more of those soft, squishy noises along with his dad's deep moans.

"Aah... Oooaah... F-fuck..." The pleasure continued, the rough fingers of his son pressing and rubbing against his walls.

With his other hand, Jodie reached down at his underwear, pulling them down. His long, girthy cock, inherited by the man he just finished licking, sprung free from the constricting fabric. It bounced and throbbed again, spitting another line of pre that shot out with force.

He couldn't stand it anymore, the taste, the smell, and moans coming from his old man. He just had to have it... With a lustful growl, Jodie stood at his full height, took hold of his father's thighs, and brought himself close before ramming his dick inside.

Otis raised his voice. It wasn't his first time taking his son's dick, but this time felt different. It was so hot and thick, reaching in so deep. He could feel it from all sides, already slick with his fluids. Jodie started bucking his hips, grunting and holding his father's legs with a strong grip. He was drooling again as he felt the soft, squishy walls hugging his length. Slaps and squelches sounded as he thrust the entire length of his cock, only stopping when his knot bounced against the wet folds.

"Fuck yeah! Pound your dad's pussy! Get in there deep!" Otis said through clenched teeth, his son's cock rocked hard inside of him, already squirting hot precum that made his insides even warmer. A sudden hard thrust made him drag his claws across the table. He curled his toes and snarled again as he was filled and fucked hard by the hard shaft, hitting deep with each strong rock of his hips.

Neither of them questioned how this came to be, how the big, strong male rottweiler lost his cock and formed a tight, wet pussy. Instead the two of them just felt the pleasure, their bodies making the table rock, their grunts and growls filling the room.

"Harder!" Otis snarled, reaching down and digging his claws into his son's strong shoulders. He moved his hips against the younger male's movements, pushing the cock even deeper inside of him.

Following his father's command, Jodie bore down on his dad, delivering a bite to the muscled shoulder, growling lustfully around it as he rammed himself with even stronger pumps, pushing it against the now clenching cunny. A steady splap, splap sounded beside their steady moans. Strings of his juices broke away as the cock pulled back, making a mess on the table.

'Almost there!' Otis snarled internally. He could feel himself nearly there. His sex was pulsating and with every powerful buck of Jodie's hips, it was getting stronger and stronger.

"Dad? Jodie?"

The two of them looked over to see the older son, Chris. On his face was a look of shock, not at his brother fucking his dad, but the fact there was a pair of stretched lips surrounding the other canine's cock rather than the tight ass he was expecting.

Despite his arrival, the other two were still going, only fazed for a moment. Jodie rocked his hips and let out a deep bark, pushing his knot past the soft lips, feeling the tightness and heat as the squeezes grew stronger.

"Nrrrrggghhh!" Finally, Otis came, the bliss struck his body hard and his fluids splashed out around the fat cock and even thicker knot. Aside from his own climax he could feel the hot spurts of his son's cum, flowing deep inside of him. It felt so good and he could feel that orgasmic shock through his body again. He shook hard again and started to pant as he rode out the double orgasm.

Jodie was still taking heavy breaths as he cock let off a few more spurts. A sigh of pleasure came from him.

"Come on. Move over!" Chris growled, banging his fist on the table. The smell of heat had filled the room, making him desperately horny and eager to get some as well. He had already shed his clothes, showing off his monster, ten-inch dick.

Jodie just growled in response as he was still knotted. The younger of the two wasn't much of a talker, but it was clear enough to see that their father's heat was bringing out those competitive instincts inside of them, prompting them to fight over the bitch in heat.

"Boys! Boys!" Otis said, his voice echoing through the room. "There's plenty of your father to go around. Jodie, let your brother take a turn."

Still growling, Jodie pulled his cock free with a loud squelch. His knot was still engorged and his cock gave another bounce as strings of cum dripped from it.

"Get out of the way!" Chris said, pushing his brother aside rather easily. As bulky and tall as Jodie was, his older brother was even more so, being nearly as big as their retired bodybuilder father. He was even more aggressive and eager to get started. "And watch as I knock Dad up with my pups!"

He shoved himself inside and his dad raised his voice again, feeling himself being spread even more than before. Chris wasted no time barreling his cock into the still-tight, messy pussy.

"Oooaah... D-damn, Dad. You're so fucking tight..." Chris growled.

"Yeah, yeah. You better back up those words, boy."

Chris just smirked and rocked his hips, making the table bump and rock, he pushed his cock in deep, clearly stretching the folds more than they had ever been.

Otis' eyes lidded and his tongue rolled from his open maw. "Aahh...fuck... Your big dick makes me proud..."

On the sidelines, Jodie pumped his paws up and down his cock, one teasing his knot while the other slowly pumped up and down his shaft, milking thick drips of his precum, leaving the fluid to dribble onto the kitchen floors.

Chris gave his brother a scene worth jerking off to, slamming his dick back and forth against his dad's sloppy, cum slathered flesh. He thumped his own paws to the table and used it for balance as he rocked his hips in wide arcs forward and backwards, pushing every inch inside with the utmost power. While fucking the older male hard, Chris glanced and winked at his younger brother. It was easy to tell that he was fucking their day better, making him cry out more. Any cubs that Jodie put in would be forced out by his own strong, dominant seed, he was sure of that...

"Keep going..." Otis grunted, gripping his son's thick arms. "Give it all to me!"

Chris suddenly dropped his body over his father's wrapping his arms around him, pulling their bodies close. The speed of his thrusts slowed, but there was strong, pushing in as deep as he could, making deep squelches as pushed his brothers cum out of the way. Strong grunts came from him, growing louder and louder.

"Yeah... Gonna breed you deep, Dad. Better make some room for my pups!"

With another hard hump, he forced his knot inside and quickly pulled back, popping the wad of flesh back out.

"Holy shit! C-Chris!!"

"You feel my big, fat knot? Take it! T-take every inch..!" Chris was now drawing shuddery breaths as he was getting close with every push and pull and loud gush of the knot popping in and out of the tight, wet folds.

"I'm...g-gonna...mmmrrrpph!" Otis threw his head back as he pushed past his limits again, shaking hard as he came again. A look of pleasure sprawled over his face as his body was still rocked and his pussy was still being pounded by the huge shaft and fat knot...

"Here it comes!" Chris clenched his teeth as his balls drew close to his body, shooting his cream deep inside with hard spurts that flooded his dad's newly formed womb. Otis writhed and continued to moan as he felt the flood of seed pouring into his depths, sinking the heat in. The strong throbs of his son's cock made pleasure radiate through him, leaving him starting to drool on himself.

Jodie thought that he was about to take his turn, but his possessive older brother growled. "I'm going again." And with that, he started to rock his hips again, groaning as he felt his cock sliding inside even easier with all the cum inside of the hole. It was still so tight and his dad was back to panting and huffed with lust. If he was good to go, Chris was going to keep fucking him, enjoying the softness around his tip and shaft.

"Let's make your belly heavy, Dad!" he growled, enjoying this new change. There was something so hot about watching his dick roll in and out of the tight cunt belonging to his old man, hearing the soft squishes and the sounds of pleasure coming from the bigger, older rottie.

"You better fuck me hard then... Aahh shittt!"

Chris did just that, rocking his body hard, chuckling as he ran his large strong paws along his dad's body, finding his pink, meaty nipples. While still ramming inside of the vent, he started to rub his fingers over the nubs, flicking his thumbs over them with slow traces.

"Mmmm...." Otis sighed, his body bouncing back and forth from the humps.

A squeeze and twist was given to them and he could feel pleasure racing up his chest as well.

"Oh fuck! You're gonna make me...again, boy!"

With a deep bark, Otis arched his back and came again, releasing more of his fluids around the moving cock. It was starting to throb again and Chris strained as he came again, this time not knotting but instead humping through his climax, unleashing more of his thick seed deep inside, raising his eyes to the ceiling as he came hard again.

"Fuck, dad..." He pulled his cock free and let off another rope against one of the thick thighs.

"More..." Otis demanded. Those pills had done a number on him and he could still feel the burning flames of his heat. He couldn't get enough of being filled and feeling seed pour into him, he needed more and he needed it now.

Chris took up the position, easing over his dad again, getting low enough to press their chests together. As he started moving, grinding his dick inside of the sloppy folds, he licked his lips and pressed his muzzle to the older male's sharing a hot, messy kiss as their tongues flailed and rubbed against each other's.

He pumped hard and fast and soon unloaded another batch of pupbutter, sighing and pulling himself up.

Their dad growled as he traced his fingers along his cunt, feeling the excess of seed pour out onto them. "Again..."

Chris flattened his ears and his eyes darted to Jodie who was still waiting on the sidelines, now there was a challenging look on his brother's face. Sure, his older brother could make a big deal about being better, but could he back up those words and keep up with their father's famous libido that was even stronger than theirs before he changed.

The older sibling's cock had often gotten a bit soft and he needed a bit of time to get hard again. He roughly pulled the older canine into the deep kiss, pushing his tongue down the other male's throat, making his dad suck and swallow on it.

As they kissed, Otis wrapped a strong paw around him, keeping the two of them close. Rocking his hips, he rubbed his messy lips against his son's shaft, making it hard again. Sure, he was pent up. But he knew that his son was in over his head. This was no one man just, but he was not going to turn down the many rounds that were afforded to him. So he continued to milk his son's ego and his balls.

His body was trained for long sessions, he was neither tired or sore despite how much fluid oozed out of him and how sweaty his body was. His heat was dulling, it seemed the pill's promise on insatiability had been a falsehood, but it certainly had a kick at the moment. But heat or not, he loved feeling his son's dicks sliding inside of him, it was their way of bonding, sharing pleasure and making sure that they were maintaining their sexual prowess, lasting longer, fucking harder, and shooting their loads hard to make sure that they knocked someone up.

He felt the fat cocktip jabbing into his already quavering pussy, he did move off the work this time, pushing his own body against it, making it slip inside.

"How is it still so tight?" Chris groaned.

"Not getting tired are you?" Otis challenged. "Stamina wasn't your best suit..."

Chris gulped. He didn't want to admit it, but he was starting to get tired. He was sweating, his legs were feeling a bit sore and he could feel that his balls were even starting to feel lighter than they had ever been. But his ego wouldn't let him concede defeat. He instead started moving his hips again, pushing and pulling his cock within, saying nothing as he felt the pleasure racing up his spine.

Within a minute or two, he was soon grunting, reaching down to bite on his dad's shoulder, mumbling around it. He was pumping hard, and his dick was pleasuring his dad as well, hitting that spot that made his toes curl hard. His new sex was full of new sensations and surprises. Even after being penetrated over and over, he was still feeling new things that made him want to go another round.

"Harder," he challenged.

Chris took deep huffs through his nose, trying to get more oxygen into his body. All the rutting was starting to take its toll on him. He knew that he needed a break, but... Even if he wanted to stop, the tight hold he was in kept him there and his dad could just start moving his own hips...

Jodie watched with satisfaction. It was so clear to see that his brother was now struggling to keep up. This wasn't the first time his ego got him into trouble, but seeing him be held in place by their dad was amusing as well, teaching him a lesson the hard way. He was now content to wait for his next turn, he would be ready to pound the older male's exquisite cunt, knowing there would be nothing to get in his way.

"Fuck... It's so goddamn big!" Otis gasped as he came for the umpteenth time. It wasn't much longer before a strong throb ran through Chris' cock. He groaned around the thick shoulder as he came again, this time shooting significantly thinner ropes that shot out with much less power.

As he started to pant hard, his father released him and patted his head. "You get it now, boy? Don't get greedy. We got all day and you need a break."

"A-alright..." With the scent of heat dispersing, Chris was feeling ridiculous for his aggressive attitude. Now he was nearly too tired to move...

His strong father held him close and lifted his bulky, heavy body like it was nothing, getting up from the ruined table, letting fluids dribble and cascade from his thoroughly bred cunt. He carried his son and soon placed him on the living room couch.

"Take five," Otis simply said. He looked back at his son and leaned over the edge of the couch, rocking his firm backside back and forth, clearly enticing his other son to keep the pleasure going.

Jodie raced up to his father and used the motion to mount him, wrapping his strong paws around his father, he growled lustfully and angled his cock before pressing inside.

A whine came from Otis. His eyes went wide as he felt a stretching not in his pussy, but in his neglected ass. His second son's prick was already pushing its way inside. Jodie was unaware of this, already consumed with the tightness that surrounded his girth. Once inside he started humping right away, using the pre that freely flowed from his wanting cock to lube the way.

"Aah! That's it, boy! Fuck your daddy's big, tight ass!" Otis said, gripping the couch's arm.

Jodie made a sound of surprise and looked down to see that he had missed his mark. But he decided to just go with it and keep pumping his cock, pushing it against the clenching flesh. It hugged his entire shaft at a steady rhythm, milking more and more of his precum. That made the hole nearly as slick and warm as his dad's new cunt. A deep sigh came from him as he bit his lip.

His eyes lifted up as he was already getting close, having teased himself the whole time his brother took his many, many turns. He rocked his body even faster and harder, making loud claps as his hips crashed into his dad's big ass. The older male was panting hard and pushing back against him.

Being fucked in the ass felt just as good, that thick shaft spearing into his guts. He could feel the growing strength in the throbs and the more frequent squirts of watery pre from the tip. His son was close, but he was feeling his own limit approaching as the pounds continued.

"Good boy... Push it in deep, I'm...a-almost there..."

Though his father could not see it, he nodded and dared to move even faster, giving a strong smack to one of the firm cheeks and squeezing it while digging his blunt claws in, sending thrilling pain through his old man. That was enough to make the older male dig his own claws into the couch's side, achieving another climax, squirting out his sweet juices and thick rivets of seed. His legs shook as thick loads dripped down his thighs, splattering onto the floor.

While cumming, he was still being used by Jodie, who grunted and grit his fangs, closing his eyes tight as he came hard a second time. A familiar sensation came over the both of them as strong shots of seed poured into the older rottie's ass. He had almost forgotten how it felt and made a deep noise of satisfaction when his son pulled out, his ass made a deep slurp sound at his tight hole clung to the flesh pole.

Still holding him tight, the mute rottweiler angled his still rigid flesh against the soaked entrance, penetrating him in the proper hole this time.

Jodie huffed and held his dad tighter as he made a hard thrust inside, finally feeling the intense heat and slick pleasure around his cock again.

The pleasure in his ass was lingering and now Otis' body was being rocked as he was fucked in his pussy again. He couldn't hold back a moan, pushing himself back against the deep strokes. Despite being smaller, Jodie was strong as well, reaching his tip and shaft into his father's tight insides, letting off more spurts of precum. He glanced down at his other son, who was watching him being pounded. There was a mix of emotions on the older rottie's face, relief from taking a break, but lingering jealousy as well. That was just the way Chris was and Otis knew it was a matter of him before he was back at it.

"Rrrgh!" Otis grunted as he was suddenly and awkwardly stretched. He could hear his son make a whine as he started to pull his knot back. It had slipped in before he was ready...

"It's okay, son. Just take it slow. Keep going, you might like it."

Jodie did as he was told, going along with his accidental tie. With the little room afforded, he was back to humping his entire cock inside, slicking his knot against the smooth walls and tight lips. It was something new, he had never used his knot until it was time to unload. The pleasure was sharp and made him wince each time he moved his body.

With another low noise, Jodie leaned his body over his father's, taking the even bigger male's scuff into his own jaws.

A mix of pain and pleasure coursed through, making him cry out. He could get enough of being fucked, pinned down and used like a female. As his now swollen lips were being stretched again as the knot was finally being pulled free from his grip. Aside from that, he could feel his ass dripping the same seed that came from his second son. It was all so much, so much pleasure, so much mess... How many times had he cum? Otis had lost count, just bouncing back the moment his climatic pleasure came down.

A muffled sound came from Jodie, mumbling around his thick scruff, one of his paws drifted low and gave another hard smack to his asscheek. That paw stayed there, drifting over that same asscheek, moving further and further inwards.

"J-Jodie! T-that's...!"

While still being fucked, now with the knot being forced back and forth inside of him, thick fingers shoved inside of his sloppy ass, rubbing inside with fast strokes, filling both holes as the same time, jabbing at his sensitive spots with his leaking tip and grinding his fingertips over his father's remaining prostate.

That was more than enough, another orgasm was forced out of him, making both of his holes clench hard around his son's fingers and cock. He took deep breaths and was still held down by the weight on his back and the bite down on the scruff. Jodie was getting close as well, spurred on by the steady squeezes down on his shaft. He copied his older brother's actions, using a lot of strength to jam his knot inside only to pull it back inside. In and out, in and out, getting closer and closer as the fluids of his dad's climax coated his cock, slathering his knot and dripping down his balls.

With a final shove of the knot, Jodie came again, letting loose his seed inside of the squeezing vent, huffing around the thick scruff, feeling his shaft throb and his seed shoot hard into the overfilled womb. Letting go of the scruff and panting hard, Jodie harshly pulled his cock free, making a loud pop and splatter as his cum dribbled out onto the already messy flooring.

Though he was spent, Jodie wasn't quite ready to call it quits just yet. As his dad was catching his breath, he eased off of him and got low, wearing a smirk as he got his mouth close to the smelly vent, taking in the mixed scents of his Otis' familiar musk, the pleasant smell of his fluids, and the masculine hints of his and Chris' cum. He licked his lips and pressed his muzzle to the hole again, starting to drag his tongue inside, slurping loudly as he lapped up the fluids and the seed that oozed down the walls. He made soft noises of his own as he enjoyed the tastes, letting the substances coated his tongue and slather his lips and nose.

"Oooahh..." Otis moaned as he was cleaned, letting his son lick him slowly and deeply. The tongue moved a lot, but the motions were soft, sending steady tingles between his legs. "You boys don't disappoint."

He moved both hands behind him. One pressed his son's muzzle closer to his sex while the other was teasing at his own ass, slipping three of his fat fingers inside, rubbing them against his sensitive anal walls, reaching in as deep as he could.

Credit where credit was due, his sons had different methods. Chris was certainly rough and dominating, but Jodie had a certain consideration to him, not afraid to take things slow and face his face messy with thick strings of his other family member's fluids.

As he rocked his fingers faster, Jodie licked faster, now just wanting to collect more the flavors on his tongue, flailing in deep and brushing over all the surfaces, putting extra pressure with each of his oral strokes.

"Keep sucking, Jodie! I'm almost there!"

Pumping his digits as deep as he could, pounding his prostate hard, Jodie brought himself to another release, gripping the back of his son's head as he came into his mouth, spurting more of his juices along with the excess spunk that Jodie him unloaded. His son's cheeks bulged as his mouth was filled but he still took big gulps, letting the thick, hot mix run down his throat, still lapping at the convulsing sex as more was pushed from Otis' insides.

He was released and made another gulp, sticky strings clung to his face but he smiled as he saw his father's tail wagging back and forth.

Their ears flicked as they heard the sound of shifting. Chris had gathered himself and was ready to go again, evident by his cock that was rock hard from listening to his father and brother going at it. He was now ready for his own turn again and stood tall, already stroking his impressive cock.

"Glad to see you back in action," Otis teased. He stepped away from the side of the couch and instead sat down on it, tracing his fingers along his slit.

"Yeah, but... Sorry, Dad. I wanna have a round with Jodie," Chris said with his newfound humility in his voice. "My bad, Jojo... It was the heat and I wanted to fuck so bad..."

The older rottweiler was cut off as his younger brother simply wrapped his hand around his apologizing sibling's muzzle. He smiled and snickered, a show of forgiveness.

"Thanks, Jojo..." Chris sighed. "Now, how about I really make it up to you?"

He gave his large maleness another slow stroke, grinning as a line of pre came forth, showing that his balls had more to give. His brother nodded and they got close together, Chris was already wrapping his arms around the other male, giving a heave as he lifted Jodie. The younger male wrapped his own body around his brother, shivering as the fat cocktip pressed against his tailhole, squirting warm and slick precum that gave a good start.

Rocking his hips forward, Chris shoved his cock inside, getting a bark out of his little brother.

"Rrragh! You're tight. Guess it's been a while, huh?"

Jodie said nothing, not only because of his muteness, but his eyes fluttered as more and more thick inches slid inside of him. It had been a while but even then he was never prepared for the immediate stretching that came from Chris' cock. The hot meat was pressing against his walls, stuffing his ass. There were a few more inches to go and a hard thrust was given, forcing the rest inside.

The both of them growled as pleasure struck them hard. They paused for a moment, feeling hot flesh clamp down on the throbbing shaft.

"Good boy..." Chris panted, starting to rock his hips, pumping his dick in between the muscled cheeks. Being so close, he could smell his brother's scent, a strong and earthy muskiness from all the sweating he had done. It made his mouth water and he continued taking small whiffs as he held tight and ground his dick into the stretched pucker.

As his son's fucked, Otis watched from the couch, fingering himself as he watched their bodies thumping against each other's, the moans coming from Chris and the steady grunts and huffs that came from Jodie. Just as much as he enjoyed pounding and being used by his sons, he loved watching them get close and mount each other, watching the products of their youthful, strong bodies play out.

His fingers were slowly rubbing into his folds, milking quivers that raced through his legs and more fluids that he endlessly produced just like the precum that used to continuously flow from his now gone balls. He made deep noises as he watched and pumped his digits in, keeping quiet so his sons could share their moment.

Jodie felt heat flush his face. The grip on him was tight and he could also pick up the strong aroma wafting from his elder brother's chest and pits. His thin pelt was slightly damp, rubbing the scent onto his own body as they continued to grind against each other.

The pace was increased, Chris wasn't one to be gentle. His heavy balls were soon clapping against his brother's backside. Jodie held on tight as his body rocked even harder. The steady groans from his brother filled his ears and he looked down to see a face of pleasure stuck on Jodie's face.

How could the younger rottie not be in total bliss as a thick cock was being jammed inside of him, touching his most sensitive spots with steady thrusts that pushed intense pleasure and heat through his own bulky body. With the pounds into his ass, his own dick rubbed against smooth fur and abs, making it hard and leaking again. Those feelings were building inside of him, getting stronger and stronger, making him start to whimper in anticipation.

The small living room was filled with the sounds and the mixed musk of rough sex. It was added by Otis who was still pleasuring himself, his own body wet with his sweat. While one paw was deep inside of him, the other was teasing over his thick pecs, playing with the nipples that were always so sensitive, making soft growls as felt his own pleasure building from playing with his changed body. While he was fooling around with himself, his sons were picking up the pace and their voices were deeper than ever.

Chris bit his lip as he pushed in extra deep, feeling his dick being constricted by the even tighter, clenching hold. "I'm getting there, little bro... You want it, don't you?"

Jodie just took another shuddery breath before nodding. He was ready for it and pushed his own body against the cock filling his ass to urge his brother on.

With a deep chuckle and a lick of his lips, Chris gave firm squeezes to the other rottie's asscheeks, getting more groans out of his brother. With a few more hard thrusts that bumped his knot against the tight, pink ring, the older canine howled as it breached past with a fleshy squelch. Following a second later was a series of hot, sticky spurts that painted the walls of his tailhole. It eased the small bit of pain that Jodie felt when the thick knot forced its way in.

"Aaahh... Mmm... F-fuck, bro..." A look of contentment scored over the bigger male's face as the last rope of his spunk unloaded inside. This was way better than fighting over someone else. He took a deep breath and figured there was no reason to challenge each other, not when they could share each other's bodies as well as their dad's. Oh yeah, their dad...

He looked back at their father, who was shoving his fingers deep, his head tilted back as he was clearly enjoying himself. The older male looked over and smirked. "Oh, boys..." After pulling his fingers free, he lifted and licked at them, lapping up his own flavor. With the eyes of his son on him, he gripped his strong legs and spread them, wagging his short tail.

The two sons took a moment to separate, both hissing as the fat knot popped from Jodie's slightly stretched ass. With a persisting smile, the younger rottie licked his brother on the face and pulled him in close, evolving the simple lick into a deep kiss. The two of them started to moan around each other's muzzles. Their tongues met and lines of drool were already dripping down their chins. Keeping each other close, the two of them rocked their hips, grinding their cocks together, smearing a thick layer of cum that made Jodie's cock sticky as well.

"Aren't you boys forgetting something?"

The two of them stopped kissing and returned their attention to their waiting father, who was now looking rather annoyed, expecting to be pounded right away. His sons parted and both chuckled awkwardly.

"You wanna go first?" Chris offered, gesturing to their waiting dad. But Jodie shook his head, turning his brother around and pushing towards Otis. He had his own idea of what he wanted to do and he knew that his brother was not going to turn down the chance to pound into that tight softness again.

"A-alright then. Guess we're going...uh, how many rounds has it been?"

Otis just rolled his eyes. "Just get over here and fuck me, boy."

Saying nothing more, Chris approached his dad and slid his body over the larger male's. Strong arms wrapped around his own strong shoulders, keeping them both into a tight embrace. As they got close Jodie watched from behind, his ass starting to leak cum. He watched as the bigger rottweilers pressed close. Chris angled himself, lifted his lower body and pushed his cock inside of the vent with a loud, wet squelch. The view he had was perfect, his brother's fat dick pushed inside of their dad, all the way down to the knot in a single motion. It all fit inside so easily and their dad made another loud gasp and grunt.

"Now get to breeding me, Chris!"

His son's body started to move, his small tail wagging as his dick pumped up and down, slicking in and out of the soft, wet vulva. His stance was wide as his footpaws were pressed to the ground, making him stable so he could pound hard. On Otis' face was a wide smile of satisfaction while his son was grunting hard through slightly clenched teeth.

The oldest rottweiler was in complete bliss as his son's cock drilled within him. From teasing himself while his sons fucked, and now he was finally being pounded as well. With each thrust, his held legs shook a bit as his son's knot slammed against his entrance, making wet slaps. He was fucking harder than ever, enough to make his body shake. Chris was panting hard as well, enjoying the surrounding hold on his shaft, feeling the flesh squeezing down on every inch all at once.

"You're so warm..." Chris gasped, feeling his cock throb and squirt pre.

"Fuck me harder!" Otis growled. Yet again, his son complied with the command. Chris raised his voice a bit, gritting his fangs and moving his body harder, making his fat balls clap against his father's winking tailhole.

"Mmm... Squeeze harder on it!" Chris growled.

From behind, Jodie rubbed his paws over his shaft, watching the passionate sex unfolding before him. While he stood behind, his eyes rolled up and down, keeping an eye on his brother's ass bouncing up and down, showing off the tight, pink hole. With his mouth watering at the sight, he approached and cupped those firm cheeks in his paws.

Chris froze for a moment, his hard humps ceasing for a moment. He glanced back at his brother who was playing with his ass. Otis made another annoyed grunt from the sudden stop, but he looked over his first son's shoulder and was starting to understand.

"Feeling a bit left out?" Otis chuckled.

Jodie pressed a finger to the hole, sinking his finger inside of the soft hole, forcing a moan out of his older brother.

"Alright, alright..." Chris panted. "Hurry up and get in on this."

The youngest of the three nodded and climbed onto the couch, planting his feet onto the cushions as he clung to his brother's back. It took him only a few seconds to position himself and another to push his cock inside, ramming it right past the tight rim.

"Ahh, J-Jojo..." Chris gasped.

His brother sunk his entire length inside, feeling the hard muscles of his older sibling's body. He felt the soft walls caressing his dick and made a hard shove of his own body, pushing with a sudden burst of strength.

Chris suddenly parted his maw as he barked in pleasure, suddenly experiencing the tight hold of his dad's pussy and at the same time, his ass was stretched around his younger brother's dick, who was already rutting him hard, slapping a pair of meaty balls against his own. He was pounded from both sides as his dad wrapped his legs around him and started to pump his hips as well, pushing his dick even deeper inside.

Otis instead gripped the sides of his couch, his tongue bouncing from his maw as he panted hard. Each time Jodie thrust into Chris, the middle canine's own humps were given extra power, ramming his dick with stronger strokes that reached deeper than ever. His paws pierced the cushions and snarled again.

"Oooaaah... Fuck..." Chris groaned, pleasure racing through his body from both sides. Fucking his dad always felt great, but it was even more so now. Now only was his length surrounded by the perfect heat and slickness from the tunnel, but his brother was showing what he could do, pounding his ass hard.

Jodi was using his full force to ram into his brother, pushing past the extra tight hole that wasn't often filled. In turn he received hard squeezes that brought more precum that lubed the passage, allowing him to go even faster.

He looked over his brother's shoulder to see his and Otis' tongues lapping against each other, making their muzzles wet as they flexed back and forth.

With a smirk, Jodi reeled his hips back and plunged himself inside with more force. His cock was squeezed hard as he rolled over his brother's prostate, giving them both intense pleasure.

Chris pulled his mouth back and huffed with labored breaths. His body was rocked hard by his and his younger brother's strength, continuous streams of pre and hard throbs came from his shaft. "I'm...I'm getting close..."

"Then fuck me hard!" Otis demanded, wanting to get off as well before his son reached his peak.

Jodie and Chris worked together, pressing their hips together, rocking hard and using their shared strength to rock back and forth, Otis humped against them, meeting every extra strong thrust with a slam of his own lower half, getting close to his own limit, sweating and gritting his teeth as the buildup promised to lead to something strong...

With another hard press of their bodies together, Chris pushed his knot inside and howled as he squirted his load into his dad's womb yet again, assuring that he was going to have a huge litter assuming that he could have kids. Either way, the pleasure between the three of them was strong, Jodie was next, biting down on his brother's scruff as his own cock erupted his thick cream into the clenching depths. Beneath them both, Otis was pulled into a powerful orgasm, squeezing down hard on the cock lodged inside of him. Hard squirts of his climax oozed around his son's knotted dick. He increased his grip on Chris, taking every drop of his son's seed, enjoying the messy heat that stuck deep inside of him, taking in the strong hints of their mixed musk as he took deep breaths.

The three of them laid there until Chris was able to pull out, but his dick rubbing against the soiled walls brought him back to hardness and Jodie was making small bumps inside of him to keep his own length erect. They were all willing to go a final round, having fucked the whole morning away, now being led into the afternoon.

Jodie dismounted first and Chris followed, both showing their father their cum-slathered rods. They were unsure about how to proceed, but Otis had the perfect idea.

Chris was soon sitting on the couch and holding his father, groaning again as his dick was sat down, sinking deep inside of the sloppy cunny. Then it was Jodi's turn. He angled his hips and pressed his tip against the already filled vent, grinding against it until he managed to get it inside.

"T-there we go..!" Otis gasped. "Hurry up!" He then raised his head and made a long-winded moan as he was stuffed with the second cock. His lips were spread further than they ever had been and just the insertion made his body shake.

"All good?" Chris asked.

Their father nodded and the brothers nodded to each other At the same time, they started to hump into the double stuffed vent, grunting and wincing from the tightness and the pleasure of their pricks grinding against each other, overly lubed by the cum-soaked folds and the seed that coated their own shafts. It was easy for them to grind and hump hard, pressing their ball together as they rutted hard into their dad.

This time Otis said nothing, he was overcome with pleasure. His muzzle was open wide, tongue flailing as a face of pleasure showed just how good it felt. He let his moans spill from his muzzle as he was used by both of his sons, feeling their big cocks rocking hard inside of him, their deep grunts and dominating growls. The both of them were letting off hot ropes of pre that made him shake more.

Chris picked up the pace and Jodi followed soon after, making deeper noises as they sought to wreck their father's pussy, slamming their dicks as hard as they could, drooling on themselves and even pressing their claws to the bigger body that made them. Neither of them could get enough of it, even as the pleasure was building and even then neither of them were slowing, only humping harder, thumping their knots against the entrance.

A howl came from all three of them, Otis started it but his boys joined in as they started to cum. At about the same time, they stretched their father immensely as they struggled to shove their swollen knots in at the same time. They managed to make it happen and they all came hard against each other, feeling their shafts throb hard, squirting the last of what they had to give as they flooded the tight space, making it run out and splatter onto the already stained couch. Even being knotted, the two of them continued to snarl as they humped hard, not stopping until every bit of seed they had was unloaded...

The three of them were soon panting on the couch, sweaty and messy with their sweat and other fluids that had collected on their bodies. Panting hard, they all sat side by side. Otis was in the middle with one of his sons on each side. In his paws were each of their balls, he was gently fondling them, knowing that he would have to wait until they were full again before they would have some more fun. His own body still felt hot and his insides were heavy with the sheer amount of fluid that was squirt deep inside, steadily leaking from his slightly stretched lips.

The three of them were soon watching TV, slowly coming down from their entire morning of fun, knowing that it was only a matter of time before one of them kickstart it all over again.