( Oh? ) Brendon intoned, completely unaware of what the horny dinosaur was planning for them.
“We’ll need more space, though.” Rex grinned seductively, crawling out from under the boat and standing in the night rain. He looked around quickly, finding nobody around, and smiled at the image of a heavily aroused feathered dinosaur sporting twin wood in the middle of a thunderstorm in a human backyard. The thunder cracked again, lightning lit up the sky, and Rex closed his eyes and concentrated. His twin manhoods jumped.
He began to grow. In fact, he was aging forward, maturing to his adult size in seconds. He could feel Brendon’s ecstasy even in his distant out of control state, soaking up the sensations and growing hornier as their body grew taller, longer, stronger, and they swelled to a fully aged up and mature adult dinosaur.
Rex opened his eyes, looking back, and he positively beamed with delight at a familiar body. He was fully grown and huge again, measuring almost 11 feet long and nearly seven feet tall from head to claw. He glanced down between his legs to give Brendon a good show and felt a twinge of the teen’s unbridled excitement at the sight of their dicks.
Massive. That was the best word. The two manhoods were nearly over a foot long in length and as thick as a beer can from base to tip. The ribs on the underside of the shafts had developed into bumpy ridges while the strange tickle flares on top had turned to stiff plump barbs. Their balls churned deep inside their housing and pre began to leak.
“What do you think, my friend? Do you like us as fully grown?”
( Please, get us off! ) Brendon begged, their cocks filling firmer and tighter. ( I want to feel those monsters cum. )
“Not yet, my human. Still more to try.”
Standing out in the yard, Rex pushed another change, grunting a little as they began to shift. The dinosaur began to hybridize. His body thinning, his chest inflating, her hips crackling. He gasped and pushed through the discomfort, urging them on.
( What are you doing to us, Rexy? )
“Mmmph... let me finish it.” The deinonychus groaned, pushing their arms longer, new fingers to grow, their body up. A seven foot dinosaur man fell to his knees panting, his two unchanged cocks bobbing with his heartbeat, thick muscle bulging along his exceptionally powerful body.
Rex looked down, almost laughing hysterically, and gave his new body a good once over. He felt Brendon positively dancing with excitement in the background.
( Rexy! Oh my God, we’re so sexy! )
“Yes, we certainly are. I thought you’d like having such a familiar shape back, hmmm?”
( Jerk us off, please! Please! I need to cum! )
“As do I...” the dinosaur whispered, looking around the yard for a safe spot to pleasure them. At his current size and stature, hiding under the boat would be impossible. The rain pelted down against their flesh, feathers, and struck their obscene cocks, causing them to jump in delight with every drop.
“This is too good to be true! We can change ourselves to whatever we please, my friend.”
( C-Can you split us? Into two?) Brendon asked breathlessly, hovering just at the edge of Rex’s consciousness.
“Not yet.” The dinosaur whispered back, “We need cover.”
The aroused deinonychus man looked around desperately in the stormy dark and practically jumped with excitement as he spied the garage.
( Yes!! Yes!! ) Brendon said excitedly, ( Amy’s dad doesn’t keep it locked. )
Rex made for the handle and turned it... the door clicked. He stepped out of the rain and into the two car garage, which was largely empty save for some shelves and tools.
Rex silently closed the door, panting, and locked it gently. Their twin manhoods bulged even further to their fullest possible size and began to dribble a steady leak of pre from both tips. As the deinonychus stood with his scaly ass to the smooth wooden door, he whimpered a little.
“Have to... have to try more.” He gasped, feeling himself tingling with erotic delight. “Let’s try bigger.”
( Whatever you want, I’m enjoying the ride. ) Brendon said seductively, urging Rex to assume full control over them.
The deinonychus concentrated and let out a hot moan as he felt the body begun to surge and tickle all over. Their muscles began to expand, naturally expanding as if receiving weeks of constant work out.
“GRRRRGH!” Rex gritted his teeth and hung on as he felt his cocks nearing ejaculation. The feeling was so powerfully sexual as he gained size and power and strength that the dinosaur could barely hold on. He let off on his growth and slumped against the door, panting, almost in tears.
( We’re huge! ) Brendon gasped.
“Indeed we are.” Rex examined himself in shock. He had pressed his lithe muscle tone into a huge bodybuilder. His abs jutted forward in a bulging eight pack. His pecs were huge slabs of hardness, so full that they strained at the edges of his chest with deep powerful lines indicating their swollen tightness. All over, he had gornw massive, his feathers jutting at odd angles as they fell over his big masculine form. He flexed his arms and felt biceps that filled his palm, marvelled at the tight bulges of his traps and lower back.
But the big red things jutting from his sheath were truly startling. Apparently growing all of his muscles so far had affected certain other muscles. His cocks were huge, forearm thick, and well over a foot long.
“Both hands, now.” Rex grinned, shaking off his soaked feathers and eagerly reaching down with two strong hands to curl his fingers around the base of each absurd cock. He began to stroke. The dual sensation of such big firm members being stimulated was enough to bring tears to the raptor’s eyes. He threw his head back and grunted.
It didn’t take much. He was so excited that only a few firm tugs were required to push him off the cliff and into the airy flight of orgasm.
Both dicks clenched violently, the tips bulging to the size of pears, before hot thick ropes of cum began to spill forth with such force they curved through the air. Nine, ten, eleven shots a cock, it was impossible to tell. The pleasure was so great that Rex couldn’t even think, shaking with pure lust, muscles straining and jumping as he released a massive load into a puddle at his meaty thighs.
As the last of his load began to trickle out, the deinonychus whimpered and panted. Outside, thunder rolled, and his eyes rolled back for a while. He almost giggled maniacally as he relished the afterglow.
( Rex? ) Brendon whispered, somehow even more distant. ( S-Something is wrong. I’m... I feel strange. )
“Brendon, my friend?” Rex blinked and concentrated. “What’s happened?”