A black car pulled up to the side of a mansion. Two friendly foxes were waiting at the door. A blue jay ran excitedly from the car and to the entrance, much to the disdain of the mother. 
“Wait, Avis! Don't go running off on your own…”
Hah! As if he'd ever listen to his annoying mother. 
“Hi Mr and Mrs Jones!” 
The two foxes smiled at the eager boy, patting him on the head. 
“Welcome to the farmhouse, Avis… And your mother, too. I hope you will enjoy your stay?”
Avis nodded excitedly, and nearly barged through them to unpack his things - but was stopped by Mr Jones. 
“Avis, I need to tell you something.”
Mr Jones deep voice set him on edge and made him gulp. He sounded serious.
“Y-Yes, sir?”
The male fox pointed to the barn just a few paces south of Avis. The boy curiously looked to where he was pointing, and could make out traces of black scales in the gap between the boards and a large spiky tail peeking out from the exit. Avis’s eyes widened.
“I-Is that a…?”
“A dragon, yes.” Mr Jones confirmed, then put both paws on Avis’s shoulders, looking into his eyes sternly. 
“Now listen here, troublemaker. Under no circumstances, do not enter the dragon’s lair. Understood?”
Avis’s lip trembled. Mr Jones was definitely serious about this.
“Y-Yes sir.”
The mother had a look of relief once he saw that his rebellious son didn’t even to dispute otherwise.
“Good lad.” Mr Jones turned to face the boy's mother,
“Now, let’s get help you get all your things unpacked, and get some nice rest after this long journey.”

--In the middle of the night...
Although unpacking everything and hurling suitcases around expended him of most of his energy, Avis still felt his curiosity drifting to that stable where the dragon was housed. Today was a hot night, and he could feel the cool air drifting from his window. Getting out of bed and looking out of the window, he started longingly at the stable and observed any movements coming from there. All Avis could see was hints of black and the rattling of chains. That did nothing to satisfy his curiosity. 
“Well, I suppose a peek wouldn’t hurt…”
Disregarding the adults’ advice from before, he was determined to go against them. After all, isn’t that want boys do anyway? They just want to have fun, and 9-year old Avis was well on his way to becoming that stereotypical teenager even at such a young age.

Though he managed to get his footing just fine, his biggest obstacle right now was remaining unseen. 
“If I stay out of the lights from the building, I should be okay…”
Sure enough, thanks to his small build and near-silent footsteps, Avis managed to sneak to the stables without a scratch. He spotted a window wide open that was just above his height. Mustering all the strength he has, he managed to grip the window ledge which altered the dragon with a loud snort. That did not deter the little tyke, for he pressed onwards, until his full form was standing tall in the busted-out window. The dragon was ready for him, glaring at him with fierce red eyes. Dread set in Avis’s stomach and his lip trembled. Doubt crossed his mind as he took in the full build of the dragon - scales on top of rippling black muscle, large testicles which hung like swinging pendulums, a long snaking tongue about the size and width of his body and then more… and his heated breath. 
“Maybe Mr Jones was right…?” He said in his scared, meek voice.

Avis slipped off the window ledge and fell. This provided an opportunity for the dragon - who walked up to the boy who had just intruded upon his domain, licking his lips, his red eyes emitting a fiery evil which shook the poor 9-year defenceless Jay to the core. 
“No, please, I don't want to get eaten!”
The cries aroused the dragon, whose balls were churning, his thick dragon cock slowly slipping out and dragging across the floor from its sheer length. 
“No, little one, you'll get something far far worse for trespassing here.”
The boy looked at the dragon's huge dangling cock, and his eyes widened in fear. A large rope of clear precum shot forth from the tapered tip and into his face, covering the boy's face fully just from that singular spurt, his face covered in icky precum juices. 
The dragon's big balls swayed in the wind. His huge cock throbbed and churned. The boy thought it best to turn tail and run after that unholy sight - but he could not leave. The dragon's tail wrapped around him, he squirmed and pleased mercy, yet the sex-starved male did not heed. His prey had been confirmed - his ‘fleshlight’ as he likes to call the younglings - will soon be used like a toy on his cock. 
“Once you've given up hope, I'm going to use all of your small body to wrap tightly around my fat cock. You hear me, mortal?” The dragon clawed at the boy's clothes, slowly ripping each article of clothing apart, his talons threatening to pierce through the boy's soft fur. The dragon's breath scorched in his ear. He cannot say no. A glimmer of hope still burned in the boy. 
“Once I've been ‘used’, you'll let me go, right?” He said in a cheerful tone, completely innocent to the meaning of sex and what fate awaited him. The dragon chortled with laughter. 
“You think your life worth keeping?! You have trespassed into my domain and disobeyed your superiors. There is no better punishment for crime than death. And while we're at it, you can take care of some of my needs for me.”
The boy shivered and began to cry. The dragon let him. He enjoyed seeing the streams of tears running down his face, the scent of fear fueled his cock and coating more of the boy's young body in feral precum. 
Then, once he stopped shaking, the dragon licked the boy's face with his thick tongue. He could smell the boy's fear again as he lapped up his tears, savouring the salty taste. 
“Yessss… I do love it when mortal younglings cry. Heheh, I'll show you how to give up.”
The dragon swooped the boy from his tail, and slammed his down to the grisly floor below, in front of his imposing, pre-spurting dragon cock. 
“Die!”
He could hear a few bones break, followed by loud crying of pain from the boy. 
“Yes!” He roared in victory. His prey was at the first stage of submission. By force, of course. 
He lined up his cock with that small ass, and pretended to go slowly at first - carefully prodding the entrance with his gigantic tapered tip. Even if he was to penetrate the kid, the boy would not live for long. The dragon's cock slapped against the boy's shivering feathered back as he considered his plan. He looked at the scene: his cock reached the length of the boy and then more. His tip hung over his head like a leaky tap.
“A slow death… That is what you deserve.”
“Please nooo!” the boy pleaded and pleaded until the dragon shoved his fat tip inside of the boy's tight, virgin entrance - from then on, it was just mindless screams. The dragon moaned out with lust, drool fell out of his muzzle and onto the boy's back. 
“Oh how I've been wanting this! Needing this! A tight young mortal for me to rape to death!”
The huge black dragon dick didn't just slide it - it CARVED its way in through the boy. Torn open a fuck path for him to keep thrusting into. 
“My motto is that the more pain mortals have, the more pleasure I get!”
A murder was happening. A cold, bloody loud murder by cock that nobody would hear. At least, you would think…

Loud fapping could be heard from the outskirts of the stable, and it was none other than Mr Jones himself jerking off his fat knotted cock to the troublemaker boy finally getting his punishment. With each and every cry that echoed from the stable, his cock throbbed hands-free. With each slapping sound of those fat, heavy balls against the underage feathery behind, Alfie Jones thought he lost his mind. But he can’t deny what he likes - the first time he saw that boy rebel against his mother, he wanted nothing more than to bring him over his lap and spank him. But it looks like his pet dragon has took that chance away from him…

Avis was clinging onto life; onto what little hope he had left to escape this humiliating fate. 
The dragon’s thick black cock was now shoved halfway inside of Avis - holding him up completely just from the strength of his cock. Hell, the dragon's cock probably has a more muscle than all of the boy has. 
Blood coated the dark cock, and the once proud troublemaker was reduced to a gurgling mess, on the brink of death. Though his vision was hazy, he could make out the outline of the figure that sat across him, on a stool. As he got into focus, Avis’s heart shook in shock. 
It was Mr Jones! And he was jerking his cock madly in front of him, breath catching in his throat, he looked at the bloodied, near-unconscious boy with lust in his eyes. 
“Oh, Avis. You look so good like that.”
Then the dragon thrusted in again, making the boy gurgle and cough up blood. 
“Do it again! I want to see you wreck his hole! Teach this kid a fucking lesson!”
Alfie was mad with lust. He couldn't stop the evil coursing through him. He just loved seeing boys dominated by his dragon, though, none had ever been brave enough to break in with the exception of Avis. 
The dragon did what his master asked. Drooling, he wrapped his tongue around the boy's body and held him by a paw. Then he began full, deathly thrusts into the boy which squished and squashed his insides around. Avis’s hole was extremely distended, prolapsed around the massive cock, acting as the perfect cocksleeve that felt warm and tight. Meanwhile, the kid's insides were popping like candy from the sheer force of that fat cock shoving inside of him time and time again. Avis is just getting used like a fleshlight, up and down, leaving his entrails and a gory mess on the cock that's killing him. 
Those mighty balls crashing against the now-bloody feathery bottom only added to the cacophony of sounds in the room. 
“God, I can fucking hear it ringing in my ears! Wreck this little shit! Give him the punishment a bad kid deserves!”
Avis was in complete agony and he only had a few seconds to live. In that time, Mr Jones looked at him with a devilish smirk.
“Well, have you learned what happens to bad boys, Avis? They get FUCKED TO DEATH. Finish him!!!” 
Alfie Jones barked the order to his dragon, who was on it in a flash. 
With a loud, proud and mighty roar, the dragon impaled the bird fully on his cock, forcing the remaining 25% of the cock in to come crashing out of his lifeless and distended maw. Guttural groans and smoky breath came out of the dragon's maw, as he ejaculated inside his underage catch. 
“Mmm, small, young, mortals always satisfy me the fullest.”
The dragon's orgasm was monumental - thick waves of gooey red-white mixed cum came crashing out of the bird's dead maw, quickly making a small ocean of it on the floor. 
Mr Jones, himself, was covered and stinking in his own semen - his nightgown parted for him to shoot all over his chest, still milking the last spurts of his cock to drip down his furry nuts to the floor. He's a tired, mess of cum from the amazing fun his pet provided to him. He never thought hi dragon was a filthy kid fucker, but that made it better. He always thought he was alone in those lusts. 
“You've… Sure fucked him thoroughly,” Alfie said, somewhat intimidated by the sight and dominance of his dragon that he just displayed. 
The dragon's voice rumbled in his chest,
“It is mating season, master, and you provided me no hole to fuck. Can I use this for a while?”
Alfie smiled and nodded in silence, still breath-taken from how hot everything was. 

With the squealing child now dead, the dragon had free reign to do whatever he wants to it. Though his cock felt very warm inside the corpse, he decided to think on his next step, and wanted his master to share his prey with him. 
“You may cum inside this corpse if you like.”
Alfie’s eyes lit up. It was like he was getting his first toy to play with.
“Really?!”
“Yes, once you work him off my cock.”
The dragon returned from his hunched-down position, displaying the broken, bloody corpse of Avis on his cock with pride. 
“Shame his asshole is basically… torn apart.”
Alfie chuckled,
“That’s a good thing. Kid deserved it. He got taught his lesson one way or another.”
Alfie grabbed Avis’s lifeless, limp arms and could feel the corpse throbbing in unison with the cock. Alfie knew that the dragon was still horny even after that - a beast like that has to be sated multiple times. 
“You want to have another load inside him?”
“No, master, I want you to play with him. Shove that mortal cock up his dead guts. Feel my warm semen rush over your cock with his blood.”
Alfie cock’s throbbed at the dragon’s vivid description. He taught him English well. He always knew it was good to keep him around. 
Yanking him off the humonous cock took a lot of strength, but it was so worth it to see the torn up asshole prolapse and spill cum and blood everywhere with a loud farting sound. Meanwhile, the dragon’s cock was full of the boy’s guts and internals. Literally. The feral beast hollowed him out. Now Avis is nothing but a limp, empty fucktoy for horny mortals to pump cum into and eventually make him inflate with it.