A mini- commission for  pika626

When Romeo finds a pair of magical dragon-wolf costumes, he immediately calls Natsu to test them out. Natsu is unconvinced, but Romeo proves to him just how well they work.

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“Hey, Natsu-nii! Check out these cool dragon costumes I found!” Romeo stood in the middle of a clearing in the forest outside of Magnolia as Natsu entered. He had found a pair of suits in a small magic shop while out running errands and he couldn’t keep himself from buying them. It took most of the reward he had earned from his last quest to buy them, but if what the shopkeeper told Romeo, it was well worth the money. He had immediately called Natsu out to the forest to put them to the test. Natsu just looked at the young teen with a credulous look, “Alright Romeo, what’s so special about these suits? Aren’t you a little too old to play pretend?”

He looked Romeo up and down. The boy was clad in what looked like a rubber jumpsuit that clung tightly to his entire body. It definitely resembled a dragon; purple scales covered his body and a pair of wings spread out wide behind his shoulders. There was even a large dragon tail coiled up behind him. Natsu was a bit confused; though, while the suit was mostly draconic in nature, it deviated in the hands and feet. Instead of the reptilian claws he was familiar with from dragons like Igneel, Romeo’s feet and hands were more wolf-like. His feet had five large, rounded trapezoidal toes tipped with large claws and his hands were similar, even showing large pads at the tips of his fingers and palms. Romeo even had a pair of fluffy, pointed ears sticking out through his hair. As Natsu looked closer, he noticed that the scale across Romeo’s body looked fuzzier, almost like they were comprised of tufts of fur rather than scales.

Romeo just chuckled and rubbed the back of his head. He gave Natsu a confident look, “There’s no pretending here. The shopkeeper gave me all the details! These suits take magic and uses it to modify itself!” Natsu just shook his head in disbelief, “Romeo, Romeo, Romeo. You seriously got played! There’s no way magic like that can exist much less be put into a costume. You should just go return them and get your money back.” Romeo just shook his head defiantly, “No way! I even tried it at the store! I can do all sorts of things! Watch!”

Romeo lifted up one of his feet, revealing a set of wolf pads on the bottoms of his feet like his hands, and wiggled his toes through the suit. He seemed to concentrate for a moment, a wide grin crossing his lips. Natsu just crossed his arms and watched as Romeo stared intensely at his foot, growling slightly as he concentrated. Natsu just rolled his eyes but Romeo just grinned up at him. “Just watch! I can feel it coming. It just takes a moment to kick in the first time. URGGG! Yes! Here it comes!” Romeo’s grin widened as he saw his raised foot explode in size, swelling up so large that it was as long as Romeo was tall.

Natsu’s eyes went wide as saucers as he watched Romeo laugh out loud and wiggle the massive toes which now rivaled his head. He had even shot up a few inches as his feet thickened with untold amounts of muscle, lifting his body higher off the ground. They were majorly wide as well. From Natsu’s vantage point, Romeo’s foot spanned the entirety of his chest from toe to toe.

Romeo growled and slammed his raised foot into the ground, causing a tremor to race through the forest. “Yeah! You see that, Natsu-nii!? It does work! GRRRRRRRR!” Romeo flexed his arms and they too exploded into massive pillars of muscle. He smirked at them with a hint of arrogance. The biceps swelled so large that they ground up into his fists. Large veins peaked across the peak and down into his massive forearms and up his titanic shoulder which burst with three bulging heads. “I can even grow my muscles! GRRRAAHHH!!” Romeo roared as he pulled a most-muscular, his body erupting in massive amounts of muscle. His giant beach ball-sized pecs slammed into his chin, each one ripped to shreds with ropes of muscle bulging under the suit. His legs exploded in every direction as they took the appearance of red oak trees standing beneath his bulging torso.

“GRAHAHAAHAAA,” Romeo laughed as he watched the fear in Natsu’s eyes, “Think I was ripped off now?” He slowly started to stand up straight, his body quickly swelling taller in time with the motion. Natsu’s face followed Romeo’s as it rose up higher and higher and higher until it towered over him. Romeo gave him a cocky smile, showing off a pair of elongated canines, and rolled his shoulders. Everything on him had grown bigger, even the wings and tail of the costume which was now waving back and forth behind him leaving deep grooves in the ground. Natsu’s eyes wandered down Romeo’s body to his abs which were now at eye level to his much smaller frame. Natsu gulped as he looked at the ten brick-sized abs sitting atop Romeo’s stomach.

Romeo caught him staring and flexed his abs in waves up and down his torso, showing how fine tuned his muscle control was now. Natsu’s eyes followed the wave up and down Romeo’s stomach and Romeo used this to redirect his gaze up to his face which grinned down at him from up high. “You like that, huh, Natsu-nii? Like what you see?” He flexed his giant arms again and gave them a firm kiss on the bicep, a loud smack echoing through the clearing. He posed a few times before turning around and giving Natsu a view of his mammoth back. He rolled his shoulders and flapped his large wings, the muscles rippling across his back. “I can control every part of my body and transform it as I see fit! Watch this!”

Romeo’s back arched backwards, his arms flared out to the sides, and he unleashed a massive growl as a series of sharp, jagged, stone-like spikes erupted from his back. They traveled down the length of his spine and down his thick, muscular tail. Spikes erupted from his elbows and the back of his ankles as well to give him a monstrous appearance. He turned back around to face Natsu, a mischievous grin plastered on his face, “You see? And it’s not just physical things I can change too!” He snarled deep within his throat. “Just listen to this!”

A low growl emitted from his clenched teeth, his voice dropping several octaves over the course of it. “Hear that, Natsu-nii?” Natsu was taken aback by the deep baritone voice that now emerged from the young teen’s mouth. “I can make my voice deeper! GRRRRR!” Another growl dropped his voice a few more octaves, “And deeper….GRRRAAAHH” Another growl followed, “And deeper! RAAARRGGGHHH!” A massive roar echoed through the forest as Romeo’s voice plummeted, “AND DEEPER! HAHAHAHAHAHAAAA!” Romeo’s laugh shook Natsu’s body to the core. It rumbled through every bone in his body. It was like standing next to a subwoofer. Romeo’s voice was now at demonic levels of bass.

“R-Romeo…” Natsu stuttered out, “Y-You have to control yourself! Look at yourself! You’re turning into a monster!” Romeo let loose a deep, booming laugh, “That’s the point, Natsu-nii! Don’t worry, I’m not going to go crazy. I just want to show the world just who the biggest,” his body surged upwards yet again as it doubled in height, “and strongest,” his body packed on tons of muscle mass to triple in size, “and STRONGEST mage in all of Magnolia!”

Natsu watched as Romeo’s body began to continuously surge upward into the air, crashing through the treetops and showering him in debris. He could hear Romeo’s powerful, booming laughs echoing higher and higher above him. Within seconds Romeo’s body became too large to keep track of and he could only watch Romeo’s massive, clawed toes thicken and swell above his head.

Outside of the forest, Romeo was basking in the glory of his unrivaled power. He couldn’t help but laugh as he watched the once large forest shrink around him his muscle were huge even if he was at a normal size. His traps rose up behind his head, forcing him to lean forward to keep his head from being engulfed by his pecs and shoulders. His abs stretched his torso up longer and longer, adding a cobblestone path of abs the likes of which nobody has ever dreamed. 30 house-sized abs burst out from his stomach and he bounced each one like a mini pec. His arms carried biceps that towered over his hands as they peaked high into the sky.

Romeo looked down at himself as he continued to swell larger. He lifted one massive paw and wiggled his toes as two extra ones popped out on either side on his foot. He chuckled to himself, but he didn’t feel like this was enough. Something was missing. He was supposed to be a dragon and last time he checked, dragons didn’t stand on just two legs. He grunted as he felt his lower spine shift and morph, elongating down behind him as another pair of powerful legs burst from his back and slammed into the ground behind him. “YES,” Romeo cheered as he flexed every muscle in his body, a final burst of size causing his growth to come to a halt, “I AM COMPLETE! RRRRAAGGGHHH!”

Romeo laughed in his deep demonic voice and looked down at the forest which stood at his feet, barely even a puddle next to his might. He focused one last time and a pair of long, twisting, dragon horns erupted out from the sides of his head to complete his menacing and powerful demeanor. He growled happily and admired himself for a moment. “So Natsu-nii...you ready to try out your suit?”

His answer came in the form of a massive pawed foot gently stomping down onto his massive back. A pair of toes curled down on him on either side of his head. They were covered in furry red scales as they wiggled and clenched down on him. Romeo grinned and looked up behind him. Beyond the massive paw that was as tall as his now massive figure, stood a gargantuan Natsu grinning down at him. He was almost a carbon copy of Romeo, but pumped to the maximum. Every inch of his body was covered in muscle and veins as he flexed his planetoid-sized biceps. Natsu smirked back down at him and spoke, his voice so deep it shook the very earth, “Already ahead of you, buddy!”