Art: https://www.furaffinity.net/user/justmegabenewell

Don't interrupt a slug's vacation unless you're ready to face the consequences!

Drop a comment if you liked the story, thank you!

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Nittoh tugged up his spandex shorts and winced as he felt them digging into his butt. The six foot ten inch tall equine closed his eyes and sighed as he adjusted his bulge to get comfy in front. Being a superhero was rewarding, sure…but he could never get used to the way the outfit dug into every curved inch of his frame. It was ESPECIALLY annoying thanks to the intense, fierce musculature and curves present on the big equine’s body: his ass was ginormous and the rest of him wasn’t easy to peel one's eyes off of. His glossy black fur traced all over his plump, thick limbs as he put on his boots, mask, and wristbands to complete the ensemble. He stretched his calves as he stomped his way down the shoreline towards the water. Sunrise was due any second.

“Hmmn..hmmnn…hmmmnn,” Nittoh hummed, pulling out the wedgie nagging at him. The peeking sight of the sun over the horizon was his starting pistol the last month or so of training…

…and today was no different, as the ‘Stormsteed’ saw and felt the warmth of that sunrise, he charged up his lightning powers and got into a sprinter’s starting position. He donned the final touch: a pair of water-tight goggles, as he aimed himself out at the ocean.

He became bathed in lightning, a crackling tingle all over him as he summoned his abilities.

ZZZRRRRPPP-SSSSHHHRRR-PP’UUUeeeeewww-

Nittoh shot towards that horizon in the blink of an eye, sprinting across the ocean as he supercharged and ran across the water.

. . .

A few hundred miles away, the sun had already risen high into the midday sky to beam down on a remote tropical island, tucked away among a dozen others. The bright, brilliant sunshine was rather idyllic! The beautiful weather was even less humid than normal, pleasing the towering, building-sized slug on the beach! He rolled over, his titanic, wide arse and thunder thighs spreading and stretching as he reached for his drink. The midday sun was cooking his giant, naked green body’s every curve as he rolled about on his hundred-something yard long beach towel. He hummed to himself. It was bliss!

…that was, until a charging dynamo of a lightning bolt arrived in a flash of light and a loud splash of water behind him to the shores of that beach! The shore itself was shallow, and Nittoh was panting profusely as sweat poured off of him. He was so exhausted from his run that he doubled over, hands on knees and squatting as he turned around and looked back out to that sea. He had (miraculously), not even noticed the sunbathing slug directly behind him against the backdrop of the lush green foliage. The slug raised an eye, perplexed at having a visitor on his own ‘private’ hideaway of an island.

“HHAAHFF-..HAHHHFF-..HAHHHF-..hhaffh-hhuhhgg…here it comes…hahh-hahh-” he panted, looking far out there as the slug did the same. Storm clouds formed slowly, brewing and growing larger and darker far in the distance where Nittoh had come from.

“...’scuse you…?” spoke a massive, booming, sassy voice behind him. Nittoh jumped, his fatigue secondary to his shock as he realized he was not alone!

“HOLY-!!” he jumped, realizing the size and stature of the slug before him!

“Uahm…uhgh-hhah-fff..” he breathed deeply, running a hand through his wet hair and removing his goggles in a hurry.

“Yes! How may I help y-you,” the hero equine stammered, raising his thumb in a friendly gesture. He was half stammering from the fatigue, and the other half staring and marveling at the jostling, jiggling curves of mass and size present ALL over that slug. He had to be twenty stories tall, dwarfing the hero completely!

“Maybe you can tell me ‘what gives’ with the weather change…?” said the immense slug, pointing to the encroaching cloud cover.

“Ah, yeah…That’s on me,” he scratched the back of his head.

“I’ve uh, haah-haff-” he kept breathing as he couldn’t help but stare at the utter ridiculousness of the slug’s body. He was taking more note of him and realizing just what a contrast in size he presented.

“‘Been training, sometimes a storm follows in my wake,” he shrugged, smiling with a friendly grin. The friendly attitude mattered little to the slug. They sighed, deeply and with an annoyed tone. That was worrying, especially since Nittoh could hear and feel the booming twist of the slug’s body as they filled their lungs and got onto their side before him.

“AAAhhhhh….so what you’re sayin’ is; ‘no sunbathing today’?” The slug got on his knees and then to his feet, the stomp and weight of him making the beach itself vibrate through the sands. The soft, heated beach acted as a great shock absorber for all that voluminous slug to stomp about. As soon as he stood, his cock bounced about his thighs and gave Nittoh a towering, full view of how big his bottom half was. Nittoh’s bulge pulsed on instinct, the sight of that massive ass and green slug mountain of glossy slimed majesty keeping him still.

The slug put his hands on his hips, strut forward, and made the hero’s eyes widen even bigger to take in all that size. Nittoh couldn’t help but look up as the slug put his hand up and blocked the sun to see the speed and rate at which the clouds kept encroaching.

“Damn,” he spoke loudly and clearly, as he spread his knees and thighs, a dozen or so droplets of his slug slime coating drop down and splatter the hero beneath him! Nittoh was caught with two particularly heavy ‘droplets’, two doused in two gallons of slug slime as that ass loomed lower! Nittoh took two steps back, running his hands down his body to get the stuff off of him, “Hey!” he looked about, realizing just how much danger he was in far, far too late.

“Guess you’re my entertainment for the day,” said the slug, spreading those knees wider and twisting his feet into his beach towel and sand beneath. He dropped his ass, throwing it back and up as he aimed Nittoh right for-

BWWWOOMPH-

The slug landed on the hero, tucking him right up against the steamiest and most sweltering ten foot trench possible: his taint. Nittoh was surrounded on all four sides, darkness and heated slug tush enveloping him entirely! He tried to shout, to punch, to push, but the slug’s slime and sweat slathered gooch ground him down and absorbed all the impact! The slug closed his eyes and worked himself. He was glad the towel was there to prevent any sandy butt as he sighed deeper. A contented sigh. He was a proper hedonist, and he was certainly not going to waste time asking Nittoh’s permission after the equine had so rudely interrupted his vacation!

Nittoh gnashed his teeth and punched back, but that pocket of slug steam cooked him as his head and shoulders were pressed down as his legs were pushed up. The hunky striped hero flexed the entirety of his pecs and arms, shoving back…and straining to the max almost immediately. Nittoh snorted, inhaling sharply. This was a mistake.

His nostrils burned with an exceptionally spicy, yet velvety smooth slug musk. It was a concentrated scent thanks to the wrinkled, slimy trench he had found himself tucked into. His eyes watered as his throbbing bulge was contained by his briefs. He found the sides of the slug’s ass encroaching. He worked his elbows and legs to their sides, pushing back to not be totally smothered!

“NNGG-HHH-G-GET OFF!!”

The slug couldn’t hear him, but he sure as hell could feel him. Him and his pathetic objections. Nittoh was so much more buried than he even realized, that hot darkness twisting as the slug’s enormous ass shook left and right.

“Mnnh-not bad,” he felt the twinge and tingle of the small fella kicking and punching back as his tender inner trench. His balls effortlessly took the stomping of those hooves, percolating as that hot hole above gave a throbbing kiss of a squeeze over their head. The slug’s cheeks naturally spread as he adjusted his pose and ground Nittoh straight down. He shuffled forward on his lower cheeks, ‘walking’ his ass with big pumps, forward and back, twisting and rocking in place with expert movements! He was milking every ounce of taint-kneading grindage out of the striped spark horse, efficiently so. He closed his eyes and felt something new, an extra warm tingle. It was different, and it was slowly building, but it was a fresh sensation that he quickly grew curious of. He reached back and grabbed his left ass cheek, pulling it up and letting a puff cloud of steam escape! Nittoh inhaled deeply, mouth open and panting for dear life!

“Hey you, deep breath time,” the slug said with a flat and informative tone. He was so casual that Nittoh was all but aghast.

“Wh-wha-WAIT!!” he shouted, realizing what the command implied as the slug chuckled. Nittoh felt the wobble of his entire body as he was sent right back to the darkness of that hot pocket of slug butt. He could not stop that mega sized slug’s new onslaught.

The massive slug shook all at once. He got his head up and his chest thrust to the sky, working that titanit tush down and over Nittoh in one big thrust. It was a purposeful bit of excited ass-smashing as he lifted and slammed the hero down on that towel, cratering the sand beneath as he landed that hero right up against the real goal: his hot green hole!

Nittoh was smashed and pounded by slime coated slug ass. It was a hot, overpowering sea of green, smashing and slamming down on him before it pushed him over the pulsating rim at thatslug butt’s core! Nittoh’s hero instinct kicked in just in time, his arms and legs tucking in just at the right moment to push back all at once! The hero’s eyes glowed, his desperation felt in every touching limb as he pushed back and pushed that rim away!

The slug inhaled. Sharply. He stopped what he was working towards and dropped to his knees. Nittoh’s empowered limbs were managing a feat no one had: to keep that hole at bay. The slug clenched. Nittoh strained back, wincing. The slug slowly squeezed, and then it came; his lightning. Nittoh’s limbs discharged lightning out into the slug’s rim, the muscle tensing in a strange, buzzing new sensation! It was unlike anything he’d ever experienced. Like a contained, body numbing tingle of heat that left a chilly aftershock. He wanted more. Even better was just how much he felt the little equine ass snack straining to do it. It was all so pleasantly surprising. The walls of the slug’s usual aloof, lazy attitude melted and oozed out of him like his slime oozing out of his pores to coat his body. He put a hand back and grabbed his left cheek. He gave it a slap as he gave the hero another clench. He couldn’t ignore such a lovely gift any more.

“Ohhhn, this is wayyyy better than sunbathing, NNF!” he exclaimed, milking Nittoh for five more lightning squeezes! Nittoh gnashed his teeth, his body flexing all over as every single muscle was brought to attention for the fight against the mega slug’s heated volcano rim! Nittoh was giving it his all, and succeeding at pushing back. His lightning discharged without his control, as he was already forced to expend all his power just keeping the slug off of him! He looked left and right, trying to find a foothold or some way to push and propel himself away from that giant anal portal, but who could focus at a time like this?! The equine’s himbo tendencies took over. He just worked himself all at once. Hands and feet pushing, forcing that squeezing portal back, strained against the clenches as the slug enjoyed the feedback of each and every tense of his titanic two mountainous buttocks. The lightning flowed outwards. The slug felt that tingly, hot, chilly buzz going further and farther over each green moon. He felt it in his thighs now. He clenched Nittoh for the twentieth or so time, and lost all composure as he turned his head and mocked the heroic morsel’s struggle.

“Oh my god, that’s it?? Don’t you have superpowers? Just lose to my pincher already and get CHURNED, dumbass!”

Nittoh was glistening with sweat and slug slime. Now, the inner walls of that anus glistened and made his hands begin to slip. The equine tried with a desperate bend and push to escape, only for his left foot to lose all balance and-


‘SQQRRRRRK-LLPTT’ the slug’s asshole squelched with a slick, moist squeeze, consuming the lightning powered stud in a fierce double flex!

‘SQQRRK…PPWMPP…plMMP-PWMMNP’ the slug balanced that ass on the heels of his feet, closed his eyes, and moaned.

“OOOHHhhhgnnh-thnngh-that’s…that’s..NNGH-!!” he swallowed his words as his ass swallowed that tingling butt snack.

Nittoh’s eyes went wide as his surroundings became ten times as dark, hot, and moist…not to mention tight! His arms were forced to his sides, his thighs together and his meaty equine ass smashed into by the slug’s inner walls. That colon caressed him once, a mighty flex turning into a frantic bearhug of those insides around them. Nittoh roared, the taste and smothering muscled walls of that steaming chamber coating him in a new, extra dense slug sludge! It was a new excretion, and one that reacted very aggressively to the tingle of his lightning. Nittoh’s greatest strength, his electricity, made the slug’s ass absolutely flush with the tingles! He was the most sizzling hot, salacious toy a slug could ask for.

“HNN-NNRRREEEIIGHHH!!” Nittoh couldn’t help but unleash a shouting neigh, his voice lost to those encroaching slug guts as their ass got a grip of him! Nittoh felt that rocking mountain of ass get in position, rolling and gripping his curves inside…and pulling him deeper in a hurry.

Nittoh kicked his meaty legs. His lightning radiated out of his entire form. The dark green pulsating walls of those guts mashed into him as the slug squeezed his new hero snack. Nittoh groaned and humped at those walls against his will, not even able to free his burning arousal as the confines of the titan slug’s insides. He was pulled a dozen feet deeper, hitting a bend and flopping over as he felt the sickening tightness of the slimy walls soaking into him even more. The deeper he went, the tighter it became, and the second bend ahead of the first had the horse packed tight as a sausage in its casing! Nittoh’s tongue flopped from his maw. He was sweltering, and now that new inner ass slime was mixing with his lightning to make something even better happen.

The slug was riding the waves of lightning as he milked them from that striped equine shorty. As Nittoh was squeezed deeper and deeper, the surges of his energy kept growing wider and more thorough. They warmed the slug up from the inside out, and that incredible tingle of hot and cold chills came with every clench of his cakes! He had never gotten so much raw, unbridled pleasure from just working his glutes like this.

“Can feel you going deeper! Almost time to become slugbutt, CHUMP!” The words came with a bite of venom and a dramatic bit of flair to every single word as he got off on the sensations tensing deeper and deeper between his hips. Nittoh ground over their prostate as the slime and lightning aura mixed to bring all that energy to a peak.

Nittoh looked down in confusion, his ‘ultimate form’ of a power sparking to life without his control! He buzzed so warm and raw with power that his slimed, hunky form turned into pure energy in slow motion!

“N-NOT NOW! N-NRREEIIGHH?!” he neighed, bloating bigger and more plump as he squirmed and kicked his butt and legs! Nittoh’s energized, hyper powered, burning hot ‘Storm Form’ came bubbling up right as the big butt equine hero was in the epicenter of the greedy slug’s giga sized bum.

This was the greatest misfortune of them all, considering the greedy nature of that slug’s body. Nittoh didn’t even have time to try and rein in his own energy before the slug’s raging inner fire got a hold of him! Nittoh roared, but his voice was lost as the walls surrounding him got closer. They squeezed him so thoroughly that his body had no place to go but…OUT!

The slug hadn’t realized it, but that sparkplug of a buttsnack was packing far more power than he ever could have imagined. The sky got a fair bit darker, the clouds finally reaching the island as the ‘Storm Steed’ Nittoh was absorbed! A bouncing, double clench of the slug’s ass sent a bubbling ripple of meaty plumpness over his body. The slug gulped in his throat as he felt his backside light up, both cheeks raised as he began to cum!

“Oh…? What is-” he looked back, squeezing once more as a giant array of lightning bolts erupted from the center of each ass cheek! The slug’s butt, chest, and belly boomed bigger in unison, a deep and roaring ‘THHHWOOOOOMMM-’ of a thunder sound running through his entire being. Nittoh’s body, power, and soul all expanded out from within, doing just as the slug had warned. He was becoming a slug’s butt, and his superpowers cranked up the experience to unreal heights! All sense of self was lost in a blink. He expanded as his body was sent rumbling through every pore on their way out to the surface area of that slug’s body. All the dense, pressurized power of a superhorse and his lightning storm core, bubbling up quickly as the slug’s body received it!


BWWWWWOOOOOOOOOOOMMMM-

As the booming rumble of thunder erupted into the slug’s glutes, his cock unleashed the first of many spraying ropes of cum as the ass around it ballooned in size! The stretch and surge of size came in one extended boom, and the slug could feel those lightning twinges as well as that hero’s neighing battery of big butt empowering tingles in a whole new vivid fashion! He was pushed over the edge, pleasure racking his body as those lightning bolts crawled over all of his new ass!


“OOOOOHHHH…HOLY FUCK-!” the slug moaned to the darkening skies. He opened his mouth, tongue out and eyes all but crossed as the tidal wave of pleasure gripped his body.

“What a little supercharged BUTT BATTERY you were!!” he blinked. He twerked. He rocked in place. He bucked, his own ass outsizing his cock even more so. His belly spilled out bigger beneath him. Nittoh’s blue lightning crawled and traveled like road lines on a map, a tapestry of tingling goodness rolling over each massive new inch of slug butt. The slug could feel his expansion. The soft, supple, slimy coating made his pliable and plush body only that much more so. As it grew, it reshaped. It bubbled and churned inside. The wave of weight and pleasure crawled further ‘north’ still, making both the slug’s tits jut out further and fill out fatter. All that buzzing lightning was kept where his body needed it most: that monolithic mega slug butt.

“OoooOOOOH! OH-” the slug moaned, a tingle and a slight bit of a mark appearing on the inner fold of his right cheek! The tattoo formed as Nittoh’s absorbed, hardy, heroic soul refused to simply disappear into the folds of his fat! A hero’s bravery and fortitude was legendary, and he would be damned if he was going to go out that easily! Nittoh blinked, shaking himself off as he looked out and saw the horizon once more. He had escaped!

<Oh!! Now I can just-!!> Nittoh tried to move, but the moment he tried to make any movements, he felt so much more….two dimensional. It was an odd feeling. He could certainly still feel something behind him-

One glance to his right made the tattooed face of that equine hero go blank. Even if his heroic, indestructible body had managed to avoid oblivion, it had not avoided a far more embarrassing fate as a cute tattoo on the slug’s triple sized derriere! The tattoo itself burned with a deliciously concentrated tingle, the same one that had driven the slug wild in the first place.

“AAAAHNNNGGGFFFUCK!” Nittoh heard the slug, loud and clear. He also heard the jiggle all around him. He felt the heat behind and around his new home. He was stretched across that ass now, both inside and out, and aside from sight and sound, his sense of touch was hypersensitive. As soon as he tried to feel outwards or ‘move’ with more gusto, all he could feel was the sprawling expanse of that ASS! Nittoh’s eyes went dead as he felt the pleasure. He received reverb and wave after wave of it, crawling out from the inside to the circumference of that fat slug dump truck. This was his existence now, and the lips of that hero tattoo quivered as he felt the slug’s moans. He felt their joy. He felt their gleeful indifference to his plight. He felt it all and sighed, wobbling as the slug pumped another four spraying ropes of cum into the towel and sand beneath.

<At least…it can't get worse…> he sighed, wondering if escape was even possible.

‘THHHHWWOOOOOOM’ thundered the sky, a soft rain falling down and further wetting up that slug’s body as that tattooed hero pouted.

“OH! OH! OHHHHH!” moaned the slug, enjoying his new size and sizzling lightning powered ass far too much to form any more rational thoughts.

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