Awesome Halloween commission I got from Meganemausu, check out the alt version (hyper/growth/sentient clothing) here!
 
Here’s a little blurb one of my friends wrote about this pic too!
 

 
Haan was deep into his work, mixing the ingredients for a potion that would make him famous. “Finally! I will show up that damnable dickmare who’s supposedly the best potionmaker in Equestria!” A male virility potion so potent it could power through a mare who had their tubes tied. All that was left was to add just a pinch of - SLAM! Startled, swinging around towards the unexpected noise, Haan accidentally dropped his entire vial of spider extract into the concoction. To his surprise, he found himself facing an all too familiar, if not somewhat annoying changeling.
 
“Haan! Finally found you, seriously you need to park your wagon somewhere that people can reach you,” the drone protested, thrusting a hoof at his cock-hungry associate.
 
“Damn it, Copper! Did it ever occur to you that I’m out here because I didn’t want to be interrupted!?” Haan was rather irate with his fellow bug for disturbing his valuable work.
 
“Lighten up Haan, you can’t just spend all your time either alone in the woods or stuffing your face with hot wings at Applebottom’s. Besides, I came bearing a gift.” Copper held up a neatly packaged parcel emblazoned with the logo from a somewhat famous Canterlot costume shop.
 
With his curiosity piqued, the striped stallion took the package. Haan opened up the box to reveal a sleek blue latex suit from one of his favorite sci-fi themed video games.
 
“It’s tailored just for you so it should fit perfectly. Go ahead and try it on.” He sat back and watched, waiting for Haan, who reluctantly slipped into the form fitting costume in front of him.
 
“It’s…actually really comfortable.” Haan noted, looking himself over. The suit fit him like a glove, even revealing the perfect outline of his barely concealed package at his loins. As he gave himself a thorough inspection, he didn’t notice Copper edging closer to the bungled potion still brewing nearby.
 
Copper picked up a flask that had been toppled in the commotion, scooping up some of the contents from the nearby cauldron into it while Haan was distracted. “So, does it fit alright?” he asked without looking.
 
“Yeah, it fits perfectly, which makes me question how you got my measurements…Though it doesn’t really matter, now where was I?”
 
Copper smirked a bit before giving a suggestion. “You were about to try out the new potion you made.” He held the bottle of lavender liquid out to the disguised ‘ling, who took hold and took an unquestioning gulp of the solution. A moment later he realized his mistake…
 
“W-wait,” he stammered “that potion had several times the necessary amount of its catalyzing ingredient, making it much more potent than - Ugh“ Suddenly interrupted by the squeal of straining latex, Haan stumbled backward, as the tainted drink worked its magic on him. His nethers burned with a need worse than ten thousand mares in estrus. His pulsing zebra cock was growing bigger under the enchanted latex.
 
“D-damn it Copper! This is all your fa - aa*aah**!” Baseballs, softballs, grapefruits, cantaloupes, his balls grew larger and fuller, while his cock was thickening and lurching down his leg, eventually reaching his knee. As it grew harder the latex formed around it, acting as a skin tight condom around his aching meat. The foot and a half long monster bobbing straight up in front of him.
 
“Holy shit…What kind of potion was that!?” Copper stared with astonishment, as an insatiable hunger took hold of him. Unfortunately, he didn’t get an answer from Haan, whose gaze was glassy and confused.
 
“That must be some powerful stuff… can you even hear me right now?” Copper waved his hand in front of Haan’s face with no reaction.
 
Slowly, almost insidiously, devious grin split his face, while he wrapped his hands around the throbbing shaft. By the time the changeling had managed half a stroke, the tip had already started to balloon with copious amounts of pre. Copper was having a blast playing with the oversized zebra dick, teasing the tip with one hand while stroking with the other, occasionally giving those hyper fertile orbs a playful slap.
 
Haan could do nothing but drool and moan, as his mind was numbed by pure ecstasy. He was getting closer and closer by the second and soon… He moaned whorishly, as his balls clenched. His cock began its best impression of a firehose, dumping incredible quantities of jism into his makeshift condom. At the tip of his stallionhood, the tight suit ballooned and expanded several times over, struggling to contain the deluge.
 
His orgasm seemed like it would never end, dragging on for at least twenty minutes, while what had to be gallons of steamy spunk passed through his devastatingly sensitive dick. The latex stretched out, threatening to burst, as a nearly pony sized balloon of cum rested at the head of his member. Haan was left twitching on the floor of his wagon, still dazed and immobile.
 
“-ey.”
 
Slowly, Haan stirred at the sound of a voice. Looking around in a weary stupor, his faculties slowly began to return.
 
“Hey! Haan, man, you need to snap out of it!” Copper insisted, gently jostling his friend.
 
Haan was trapped under the massive bubble of cum in his suit. Though the potion had worn off, thankfully letting him think straight, he was still thoroughly immobilized. “Copper…I hate you sometimes, but I think you may have actually just helped me make a potion to show up that blueberry potion mare.”
 
The end…maybe*