Mat excitedly tore open the package warped in brown paper that his uncle had sent him for his birthday. The cub smiled as the warm paper tore away from the box with ease and he giggled when he saw the postcard taped to the front of the box, slowly the boy pulled the card free and read the back of it quickly. The post card said, Dear Mat If I timed this right then you should be receiving this package on your birthday, Inside is a gift that will change everything for you and your dad. Tell your father that I love him and I wish you a Happy seventh birthday. Love Uncle Maxwell. The cub quickly tore open the box and pulled out a gold ring that had a thick piece of jade set in the center. The brown bear cub gasped and quickly ran up to his fathers bedroom and jumped on to the bed waking the sleeping bear. “Daddy! Daddy! Guess what uncle Max sent me for my birthday!” the cub shouted into his fathers ear.
Slowly the big bear turned to the cub and smiled “What is it scout?” his father asked with a smile. The cubs only response was to shove the ring in his fathers face excitedly, the instant the bigger bear saw it his jaw dropped and he said “Jesus Christ that looks expensive!” The cub bounced on the bed and smiled at his father with a toothy grin as he handed his father the postcard.
“I know uncle Max got it from the place on the card I bet.”
“I am going to kill tat brother of mine I swear.” the older bear growled as he slowly got out of bed and walked towards the bath room. “I need a shower scout then I will make you a big birthday breakfast, OK?” the older bear asked as he grabbed a towel and opened the door to the bathroom.
“OK daddy I am going to go put my gift up so I don’t lose it.” the cub said with a grin as he jumped off the bed and ran out of the room, The older bear chuckled and slowly  closed the door behind his son.
 The cub skipped to his room and was just about to put the ring in a small box that he kept his most important things in when he got an idea. The green piece of jade atop the ring made the cub think of the green lantern so he slipped on the ring and started to pretend that he was the green lantern. But shortly after the boy slipped the ring on his finger his whole body went numb. The cub fell to the floor and could not move, his throat refused to let any sounds escape as the cub panicked, He was parlayed and  fear shot through his young body like venom. Tears started to form in the boys eyes but soon he blinked them away as his arms and legs suddenly started to get longer. Shock and awe filed the boy as he kept growing longer and longer, his clothes started to cover less and lees of his body as he continued to lengthen, his body soon stopped getting longer ans started to get wider, slowly thick knots of thick pulsing mussel started to force its way all about the cubs body. The boys shirt ripped to shreds and his underwear clenched his small package tight as the cur expanded outward more and more. The boy tried to cry out again but the numbness still held him tightly. Then to the cubs horror his small and strained underwear were torn apart by a massive slab of flesh that was slowly creeping its way up to the boys face the blood red tip touched the boys chin and extended up to his nose before the numbness faded away. As soon as the boy could feel again he let out a deep moan as the new feeling of his hot moist fuck rod laying on his ripped chest slowly creeping back into his sheathe, leaving behind only a slimy trail. The cub gasped as he looked down and saw that his once small sack had expanded out obscenely between his thighs and his two heavy orbs touched the floor lightly even though the boy was on his back. He tentatively reached down with his massive paw and palmed one of his testicles which had swollen to the size of a cantaloupe with a gasp the boy let go of his orb and winced as his heavy nut bounced on the floor slightly. The cub whimpered as he slowly as he forced himself to his feet, his new attributes felling heavy between his knees as he stood to his new height of seven feet. His new mussels easily carrying his bulk about. Slowly the boy lumbered through the hall and into his fathers room just as his father slipped out of his bathroom and into his room warped in a towel.
The older bear turned to his door and jumped back with a small scream as he say the seven feet of hulking bear that stood in the doorway. The older bear quickly reached for his gun when the large bear whimpered in its deep thick voice “Daddy somethings wrong”
“Mat?” the olde bear shouted as the hulking boy nodded his head softly as tears filled the big creatures eyes. The boys father walked slowly over to the boy and hugged him the best he could but his son was just too big and the mans arms did not even touch as he wrapped his arms around the rough fur on the  boys waist. The boy stooped crying and smiled as he felt his fathers warm arm touch him but soon he started to blush as he felt his sheathe get tighter. The older male looked down as the sheathe that was touching his chest suddenly got hotter and hot musk poured from the opening. The boy started to pant quickly as his mind was clouded with hot lust. Forcefully he grabbed his fathers head and pushed it towards his lengthening cock with a growl. The boys dug into the mans head gently and horror filled him as the thick tip of his sons now gigantic cock poked at his lips. Quickly the man turned his head to the side, A thick dollop of pre left a musky trail of wetness across the mans face as the boy growled “Lick me!”  The olde male shook his head refusing to open his mouth, more hot musky pre coated his cheeks as he struggled against his stronger son. The boy growled and tossed his father onto the bed easily, quickly the boy panted and aimed his cock at his fathers tight hole and with a hard thrust the cub buried most of his flaccid length into his father. The older bear let out a scream of pain and terror as the soft length quickly invaded him. The cup panted happily as he started to grow hard within his dad, as he started to grow he pulled most of his cock out of the man making sure not to shove in more than the smaller bear could take.
 The older man cried and bit his sheets as he fleet teen inches of his sons massive rod impaling him, the man could feel the veins of the boys cock pulsing hard with his sons hot blood and the warm leak of precum that his so kept pouring into his torn and abused ass. Tears roll off the fathers face as he feels his son slowly pumping in and out of him with heavy musky grunts, The thick heavy ball gently slapping against the bed as the father slowly took half of the boys twenty inch cock into him. The boy grunted loudly and started to thrust into his father more rapidly as his clear cock juice started to splatter out around his cock matting the boys crotch and the older mans ass in thick potent bear musk. Both males started to get hotter and the fathers cock slowly rose to its full eight inches as his belly ground against his cock  and as his sons invading monster tore into him without care. Suddenly the boy cried out and pulled his fathers head back by the fur as he shouted “Take it all bitch!” his father moaned as he fleet the boys thick musky balls pull up again and again as the boy shot thick streams of his potent  cum deeply in the mans ass. Pain flooded the the man just like his sons seed, quickly it forced its way up through the mans bowels and into his stomach. The olde male groaned as torrent after torrent of his sons hot cream filled his stomach to the point of bursting when suddenly the boy pulled free of his father and feel to his ass squirting a few more of shots of his thick cream up towards the ceiling where most of it stuck, the rest rained down on the man and his bead heavily. The boy panted and blacked out as the ring slipped from his finger, when he awoke he saw that he was returned to his normal form and that his father was laying on his spunk covered, his belly was swollen so much that he looked pregnant. Slowly the older man rose to his feet with a grunt and asked his son tentatively “what do you want for breakfast sir?” 
The cub quickly said in a voice that was not his own “Make me something with a lot of meat bitch.” His father just nodded and slowly waddled down the hall as his sons hot cum sloshed around in his large belly.