a story trade with https://twitter.com/TheGuyWithAnAD~
His characters find a ray gun that has some interesting effects~

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There’s a knock on Jackson’s door, after a minute with no response the window next to it opens and a grey husky with a stylish green mohawk slides through.
“Hey, Jackson, are you home buddy?” Barry’s voice rang out in the entrance way. He moved his ears to listen for any tinkering or building that might be happening right now but it was so quiet Barry felt unnerved, as he quickly unlocked the door.
“W-What took you so long. I was scared!” A timid red dragon nearly hit Barry with the door as he pushed it open. “Who knows what security is like here...” Andre stammered as he smoothed down his fur that was on edge.
Barry just rolled his eyes at him and looked around. “Jackson said he’d be here but I don’t hear OR see him, which is very unlike him.” The husky looked around and spotted Jackson’s lab door partially opened. “Maybe he passed the fuck out while working?” He motioned to Andre to follow him to the lab.
The pair peered in and both were taken aback by how many new inventions were strewn around the lab, but still no sign of Jackson.
“Maybe we should come back another day? I don’t feel right rummaging through his stuff…” Andre said as he pulled on Barry’s spiked jacket. The husky shrugged him aside as he walked into the lab, towards an eye level shelf and picked up what looked like a chrome tase.
Snorting a laugh Barry waved it around. “Look, this thing is marked as a growth ray! Haha.” With a disregarding motion he pointed it at Andre and pulled the trigger.
A powerful green beam shot out of the tip of the device and hit Andre square in the chest, making the dragon grunt. “BARRY, WHAT THE HECK??” The dragon yelled, patting his chest and looking worried.
Barry dropped the gun and ran over to Andre. “I-I didn’t think it’d work, Jackson’s inventions are always a 50/50 at best! B-but it doesn’t look like anything is happening with you, so maybe it’s a prank item..?” Barry suggested, still looking a little worried but relieved that Andre didn’t receive any wound.
After a minute of checking himself out Andre sighed in relief, and went to pick up the gun, smirking a little. “You know, it’s only fair I get to shoot you back for that.” And before Barry could protest, Andre aimed and fired.
This time the beam that shot out was a bright red, hitting Barry in the chest he grunted, but knew to expect it. “O-okay, fair, but why was it red that time?”
The duo looked at the gun and the display this time said Shrink Ray.
“Maybe when you dropped it the setting switched?” Andre offered the idea, Barry nodded in agreement.
“I guess we better put this back before Jackson comes home.” Barry said, picking the gun up and walking over the shelf he found it on and was about to put it back when he noticed the shelf was now over his head.
“Hey, was this shelf always this high up?” The husky asked, turning back to look at Andre, chuckling when he saw the dragon shuffling in place. “What’s wrong? Did you bump into some itch powder or something?” He said with a blep, his own problems dissipating from his mind for a moment.
“Ugh, n-no! My clothes just feel tight, I don’t know what’s wrong with them!” Andre complained, blushing as he noticed Barry checking out his form now that his clothes were skin tight. “S-stop, this isn’t-”
RIIIIIPPP
Andre’s pant seams finally gave out, ripping along the sides, the dragon's face getting bright red. “What’s going on..?”
Barry couldn’t keep it in any longer, bursting out in laughter and gripping his sides.
Until Barry’s own pants fell from around his waist, making the husky yelp in embarrassment. Dropping the gun he held up his waistband. “T-this is bad… I think the gun actually works!”
Andre looks down at Barry, a mix of worry, amusement and embarrassment on his face. “Wh-whe-where is Jackson, we need him to fix it!” The dragon exclaimed, groaning loudly as his shirt started to rip, showing off his soft looking white tummy fur. Luckily it seemed like his metal arm was also growing with him.
“At least you can still reach stuff!” Barry said with a grumble. Andre looked at him and had to stifle a laugh himself. The husky looked like he was wearing clothes 10 sizes too large for him.
The husky’s frame had shrunken down so much that his jacket sleeves were bunching up around his hands, still holding onto his waistband, even though the backside was drooping halfway down his calves. And he was still shrinking!
With a disgruntled huff, Barry let go of his waistband, letting his jacket drop to the floor as adjusted his shirt to cover him. Stepping away from his clothes and boots, a small blush on his face. “So I guess this is my life now.” He grumbled as he looked over to Andre.
Andre had continued to grow as well, his pants appearing as tight shorts, and his shirt looking more like a ripped open crop top. The poor dragon was holding his crotch and with fumbling fingers was attempting to undo his waist and tail buttons. Unfortunately his growth had strained the poor buttons so much that they were impossible to thread through the holes. With a grunt and a rip, the pants tore apart and fell to the floor. His shirt followed suit shortly after.
Andre quickly covered himself with his hands, his face a beet red. “Th-this is the worst, why did I have to be the one in just my undies!”
Barry looked up at the now towering dragon, appearing as a giant to his 1 foot frame. Feeling bad for his friend being embarrassed by this he sighed and dropped his shirt, scratching his cheek as he blushed too. “T-there. Now we’re both in our undies…”
Andre sniffled a little, rubbing away a few tears as he looked down at Barry. The husky was wearing a pair of black panties with embroidered rainbow flowers sprinkled around, and a rainbow waistband. Andre took a deep breath. “Thank you…” He moved his own hands to reveal his own panties, a deep blue lace with sunflowers scattered around. With a sigh, Andre sits down, hugging his legs as he looks down at Barry.
“You look cute in those, dork!” Barry said as he walked over to his friend, patting his ankle bone, the highest part of his friend he could reach.
“So do you, dweeb.” Andre complimented as he reached down and ruffled Barry’s hair with a gentle paw. Barry begrudgingly took the pet, grabbing onto Andre’s finger.
“Hey, take me up so I can see your face!” Barry said, a short wag of his tail as the dragon brought him slowly up to his knee. Letting go and landing, Barry stumbled and started to lose his balance, flopping onto Andre’s knee.
Barry stood up on the dragon’s knee, a blush forming more as he looked up at him and seeing how big Andre had gotten, about to shout something to him.
CHONK
Andre’s horns suddenly hit the ceiling, poking holes into it. Andre yelping in surprise and lowering his head.
Barry took this chance to jump onto the giant's snout, barely straddling it at his 6 inch height. “Are you okay?!” he had to shout for Andre to hear him now that he was towering at 27 feet tall.
“Y-yeah, I’m fine, just surprised me.” Andre said as he rubbed his head, deciding to lay on the floor since it was wider than the room’s height. “I hope Jackson gets here soon…”
Barry layed down with Andre, rubbing his snout. “Me too buddy, I think next time we should wait for him…”
As the duo sat and waited their growth seemed to halt, Barry stopping at 5 inches tall, while Andre had grown to 30 feet tall. Both of them waiting for their friend to show up.
Barry’s ear perked up as he heard a key in the door. Looking up as he and Andre heard their friend enter.
“Hello? Is anyone he-” Jackson’s sentence cuts off as he notices Andre’s tail sticking out of his lab door. He runs into his lab and falls on top of the dragon’s stomach.
“Jackson? Jackson!” Andre said in excitement, propping himself up and almost hitting his head on the ceiling again. “We’re so glad you’re here! You have to help us back to our normal sizes!”
Jackson gets up off of Andre’s stomach, brushing the fur off of his work clothes and looks at the dragon. “We? Us? Who else is here with you?” he asks as he looks in the room for the other giant.
“Over here!!” Barry shouted, jumping up and down on top of Jackson’s desk, his inaudible squeak not reaching Jackson’s ears.
The rabbit went to his desk and picked up his clipboard, Barry jumping on top of it to get his attention. Jackson’s eyes widened as he looked down at the micro husky. “Well this is interesting, what happened to you?”
Andre held up the ray gun between two claws, handing it over to Jackson. Barry clearing his throat.
“We were messing around and I shot Andre with the gun, and he shot me back!” The husky explained. “Please you have to turn us back to our normal heights!”
Jackson thought for a moment and took his pen out from his shirt and clicked it. “I will, but I want to document how this happened.”
“Alright, Andre once you explain to me what happened, I’ll work on figuring out how to change you back! Unfortunately I don’t think I’ll be able to fix your clothes though.” Jackson said with a dismissive shrug, a small blush on his face as he eyed both of them in their panties.