Twilight stood at the bank of a roaring river, the last remaining barrier that stood between them and the castle. She was currently trying to brainstorm a way to get them all across safely but was so far coming up blank.

When they first arrived, Rainbow Dash suggested that she and Fluttershy try carrying each of them across one by one, but they weren't particularly keen on the idea. Even with Rainbow's help, Fluttershy was barely able to support somepony as light as Twilight back at the cliff.

Plus, Fluttershy seemed downright terrified of the rapids roaring by, and to be honest, she couldn't really blame her. The river churned and broiled like it was being stirred by at a million giant egg-beaters. It was sure to spell certain doom for anypony who happened to fall in.

Applejack had also looked around for a tree she could kick down over the river, but unfortunately, none of them were even remotely tall enough to span the distance. All in all, they were stuck.

"So... w-what do we do now?" Fluttershy asked, her wings folded tightly up against her back as she stared fearfully across the raging rapids.

"Well... I'm... I'm not sure." Twilight admitted, honestly stumped.

Unfortunately, for as powerful as it might seem to the others, her magic wouldn't be much help in their current situation. Twilight was fairly certain that she'd be able to teleport herself to the other side, but that would still leave Pinkie, Rarity, Applejack, and potentially even Fluttershy behind.

Theoretically, it might be possible for her to teleport them all of them over at once, but that was like nothing Twilight had ever attempted before. She had only just recently perfected personal teleportation. Anything more than that would be incredibly dangerous if it were to go wrong.

Yet despite the risk, Twilight was honestly starting to lean towards giving it a shot. They had already gone through so much getting this far, and she absolutely refused to give up just because of some stupid fast-moving water.

"Well..." Twilight began, getting the other's attention. "I do have an idea that might work... but it'll be pretty risky. I'll need to-"

*FWWHOOSH!*

Suddenly, Twilight was cut off as a huge wave of water rose up over the riverbank behind her. It crashed down over the side, nearly knocking down all six of them as a huge scaley creature breached the surface of the water.

"Ohhh! Woe is me! What a world! What a world!" A somewhat effeminate voice wailed, followed immediately by what sounded like very dramatic sobbing.

As the wave of water receded back into the river, Twilight and the others stood there, now completely soaked. Their manes and tails hung down flat against their bodies, and all of their clothes were utterly drenched. Applejack's hat was drooping down over her face and Rarity had very nearly lost what little she still had left of her shredded dress.

Twilight gazed up at what appeared to be some sort of giant purple serpent as it thrashed and rolled around in the middle of the river, crying and whining. She recognized it from some of the pictures in her books. It was some species of Sea Serpent, though it was much more well-groomed than she would have expected. A large stylized orange mane sat atop its head in addition to half of a very fancy looking mustache that was hanging down under its nostrils.

Why a sea serpent of all things was living in an inland river, deep in the Everfree forest, and far from any nearby large bodies of water, Twilight had no clue. Then again, it was hardly any weirder than the many other things that apparently occupied the Everfree's interior. According to what she'd read about them, most Sea Serpents were supposed to be pretty friendly and usually just kept to themselves in the ocean.

"Uhh, hello! Uh... 'sir'?" Twilight called out to the creature, hoping that it would truly be as friendly as her books described. "Why are you crying?!" She shouted up to it, finally getting its attention in between its sobs.

The tall creature stopped crying for a moment, sniffling as it turned to look in their direction. It seemed to think the answer to her question was obvious.

*Sniff!*

"Well, I don't know! I was just sitting here, minding my own business, when suddenly this tacky little cloud of smoke just whisks right past me and tears half of my beloved mustache clean off!" He sniffles, emphasizing his point by swiping one of his large webbed hands past his snout. "And now look at me! I look simply horrid!" He wailed, flailing his arms about in the water.

"Oh, give me a break..." Twilight heard Rainbow mumble as she was in the midst of shaking the water out of her wings.

"That is what all your fussin's about?" Applejack asked incredulously, ringing out her waterlogged stetson with an irritated scowl.

"Why, of course, it is!" Rarity answered, stepping forward and rolling her eyes. "How can you all be so insensitive?! I mean, just look at him! Look at his lovely luminescent scales!"

*Sniff*

"I know..." The serpent agreed, wiping a big tear from one of his eyes.

"And look at his very expertly coiffed mane!" Rarity continued, brushing her hands through her own wet mane for emphasis.

"Oh, I know, I know!"

"Why, his absolutely fabulous manicure is just to die for!"

"Oh, It's so true!" He gasped, unaware that she had even noticed his neatly trimmed claws.

"But..." Rarity began, head tilting down. "All of that is ruined without the other half of his beautiful mustache." Rarity finished with a sad sigh.

"Oh, It's true! I'm hideous!" The serpent cried out again, splashing back down into the river and very nearly sending another wave of water crashing over them.

"I simply cannot let such a crime against fabulosity go on uncorrected!" Rarity declared, her horn coming alight with a light-blue aura. Twilight watched curiously as the mare's curly purple tail was lifted up, exposing her rear as she held it out in front of herself.

"Rarity? What are you-" Twilight started to ask, only to be cut off as, with a quick flick of her horn, Rarity sent a thin beam of light blue energy slashing through her tail.

The serpent let out a horrified gasp at the sight, collapsing down onto the riverbank in front of them. Now holding the severed portion of her tail aloft with her magic, Rarity floated it up to towards serpent's head and, with some surprisingly complex magical manipulation, fused it together with what little remained of the serpent's stache.

Twilight watched on in awe as Rarity did this with ease, not even straining from the effort. Even she had difficulties performing particularly complicated or precise magical manipulations, being something most unicorns normally had to practice for many years to perfect. Yet, Rarity didn't seem all that much older than herself but was still able to expertly manipulate thousands of tiny hairs independetly, all at the same time.

"Oh-hohohoho! My mustache! Oh, how wonderful!" The serpent cheered, apparently delighted by his newly acquired facial hair as he reared back up from the shore.

"There you go, now you look simply smashing!" Rarity beamed, puffing out her chest with a sense of pride at the results of her work.

In Twilight's opinion, the curly purple hair looked a bit weird compared to the other side of the serpent's orange-yellow mustache, but whatever made the serpent happy was good enough for Twilight. At least it wouldn't be thrashing around in the water anymore.

Looking back down at Rarity's tail, she again found herself admiring how cleanly it had been cut. The smooth underside of her dock had made clearly visible now, and with her tail no longer there to provide cover, her ass cheeks were completely exposed.

"Um, Rarity, what about your tail?" Twilight asked, surprised that the fashionista had been so willing to sacrifice her own tail for the sake of some random sea serpent they'd just met.

She was no expert on the subject, but it had probably taken her ages to get it to curl like that. Twilight doubted she could pull it off even if she tried. Magic and hair just did not mix...

"Oh, It's perfectly alright darling. Short tails are in this season anyway, and besides, it'll grow back with time." Rarity replied nonchalantly, though she did cast an unsure look down at her vulnerable rear for a moment.

As serpent stroked and admired his new mustache, the river seemed to finally start to calm down, revealing the raging rapids and turbulence to have all been a result of the serpent's temper tantrum.

"Hey, you guys! I think I see a way we can cross over there!" Rainbow shouted, finally un-waterlogged enough to take to the air and gesture upstream.

Sure enough, with the river calm, a few large platform-like rocks spanned the gap. Relieved to have a less risky way across, they all started making their way towards it, only for the Serpent to lower his large hand down in front of them.

"Oh, if you six lovely ladies need a way across, please, allow me to assist you." The serpent offered, his long, snake-like body rising up to the surface and creating a near-perfect bridge for them to walk over. "It's the least I can do after your friend's very generous sacrifice in the name of fashion!"

Nearby, a certain 'tacky looking cloud' was fuming as it watch the six mares as they made their way across the sea serpent's body to the other side of the river. Once again, these meddling ponies had managed to befriend another monster of the forest.

'That strike at its face was meant to make the creature go on a rampage, not start crying like a little foal!" Nightmare Moon growled. "Though, at least none of them tried flirting with it this time.' She grimaced, giving the yellow pegasus an irritated glare.

Before her banishment, sea serpents had been among the most dangerous and merciless aquatic monsters known to pony kind. They destroyed entire navies, devoured families of ponies whole, and even picked fights with full-grown dragons that flew too close to the water. Yet, now it seemed that they had become just another species Celestia found a way to brainwash and pacify.

Nightmare Moon felt ready to swoop down and finally kill all six of these miscreants now, but she restrained herself. It was about time she got a little bit more personally involved. Clearly there was no sense in relying on any more of the dim-witted creatures in this forest to do all the dirty work for her. She'd allow them to reach the castle, but once they entered it, she would make sure that they never found their way out alive...

Once they had all waved goodbye to the serpent, Rainbow was quick to fly up into the sky in order to get a better view of the area ahead of them. All the while, she was wary of the black spiky clouds floating not far above. She was relieved to see the ruined remains of their destination just up ahead, though it was a bit difficult to make out most of it due to a large fog bank that was rolling over the area.

'Finally...' Rainbow sighed in frustration, her legs clenched tightly together as she flew.

Ever since they'd reached the river, Rainbow Dash had begun to feel a fairly urgent need to pee, seemingly awakened by the sounds of rushing water. The obvious solution would be to just fly down and find a secluded spot, away from the group, to relieve herself.

Yet, and she would never dream of openly admitting this to the others, she was more than a little scared of being all alone out here. Be it the lack of any control that she had over the weather, the monsters that were said to lurk around every dark corner, or even just the fact that the entire place felt so unnatural, the whole place was just too much.

'These ruins better have an ancient bathroom or something. I don't know much about castles, but medieval ponies would have to use the bathroom sometime too, right?' She thought. 'I'll just hold it until we get there, no problem...'

For once feeling more vulnerable up in the air than on the ground, Rainbow quickly landed and walked along with the others. Her constant wing-flapping hadn't been helping her keep a lid on her full bladder anyway. She wasn't sure how much longer she'd be able to hold out like this, but hopefully long enough. She wasn't used to feeling an urge quite this early on, though she was thankful for that at the same time. The last thing she wanted was for the others to see her have an accident after all her bragging earlier.

As much as she hated to admit it, she was all too familiar with having the occasional accident from time to time. Granted, what adult mare wasn't? Whenever she was performing strenuous tricks and maneuvers, she would often be too pumped up with adrenaline to even notice the need to relieve herself until it was way too late to do anything about it in time. Though a common trait, her body's response time was usually much later than average.

It usually wouldn't be until she crashed or stopped for a water break that she'd finally notice any yellow streams running down her legs or bulges in the seat of her pants. Of course, the moment she did realize something had happened, she'd immediately fly home to get changed and get cleaned up. Other ponies seeing her like that was not exactly good for the image she was going for.

Rainbow Dash was well aware that it was supposed to be a perfectly normal thing for a majority of mares to deal with, but she was supposed to be the best flier in all of Equestria! Having accidents always felt so childish and most definitely not like the awesome Wonderbolt she knew she that she was destined to become. Plus, never even once had she ever heard of any of the mares in the Wonderbolts having accidents during their shows!

'Ugh! I knew I should have just gone before we left!' Rainbow growled, resisting the urge to press her hands down into her crotch as she felt another pang of urgency from her bladder. It was going to be a long walk...

In the aftermath of, in Spike's personal opinion, one of the cruelest punishments he'd ever experienced, Spike did actually find himself briefly considering doing as Nightmare Moon commanded. If only in hopes that the alicorn would return and finally 'finish him off'. In the end, however, he was able to shake that clearly lust-driven idea.

It had taken a while, but after a few long minutes of no new stimulation, his aching dragonhood finally realized that it wasn't going to get the release he so badly wanted. He watched regretfully as his dick slowly receded back into its hiding place underneath his scales. Despite no longer being visible, there was a still noticeable bulge pushing up under the tiny plates, a sign that he was still quite pent up. It likely wouldn't take much to make his cock pop right back out again, already hard and rearing to go.

Regardless, Spike knew he needed to find a way out of this castle and go help the others before it was too late! Based on what Nightmare Moon said, assuming that she was even telling the truth, the others were still okay for now but were clearly in grave danger.

With his vulnerable non-fireproof dick hidden, Spike tried using the same trick he'd used to escape these magical bonds before. Being cautious, he blew a small stream of green fire over the areas the alicorn had placed her icy enchantments. The last thing he wanted to do was accidentally turn this entire dust-filled library into a raging bonfire by spewing flames recklessly. Twilight would probably never forgive him.

After a few moments, he felt the invisible bonds start melting away as they did before, though these were taking a fair bit longer to do. Perhaps Nightmare Moon had cast a stronger version of the enchantment since he was able to escape the last ones, however, she didn't appear to be aware of his dragonfire's capabilities. He planned to keep that ace up his sleeve for as long as possible. It might be his only hope if he had to fight her...

Slowly freeing himself one limb at a time, Spike was finally able to stand up from the wooden chair that had been witness to his horrific torture. There were a few charred markings from his flames, but luckily nothing had actually caught on fire. Wringing out his sore wrists, he pondered of what to do now.

'I have a feeling the book about the elements isn't the only one written in old ponish, so I probably can't do much else here all by myself. That, and I don't want to be here when Nightmare Moon comes back, and finds out I'm 'behaving' again.'

Spike shivered as he imagined the potential punishment she might have for him then.

He needed to find a way to get to the others, and fast. At the very least, he could try to find Twilight to bring her back to this place. Old Ponish had practically become the mare's second language ever since she learned about it from a section of the Canterlot Royal Library. If anypony could decipher these books, it was her!

As they hiked through the last of the wilderness between them and the ruins of the ancient castle, Rainbow Dash let out a breath of relief.

'Finally, we're here!'

Rainbow was almost at her limit, having never been forced to hold it for this long before. Unfortunately, even with the forest out of the way, that still left the task of crossing the deep ravine that apparently circled the ruins. It was like the river all over again, though at least this time there was an obvious way across.

A tattered rope bridge stretched the distance across the ravine, though it had clearly seen better days. Many of its wooden planks were missing and the ropes were very loosely tied to the stone supports on either side.

"This is it! This is where the elements are!" Twilight exclaimed as she spotted the outline of the castle through the dense fog bank ahead, bolting for the bridge.

"Woah! Hold on, wait for the rest of us!" Applejack shouted, but the purple unicorn kept going.

She barely made it a few steps across the rickety bridge before a loud snap was heard from the other side. Twilight felt an all too recently familiar sensation as she began to fall. With the bridge swinging up against the wall of the ravine, Twilight tumbled down into the dark abyss below.

Acting fast, Rainbow took to the air and darted down into the ravine. Swooping underneath her, she grabbed the terrified unicorn before she could build up too much speed.

"G-geeze, what is it with you and falling off cliffs today?!" Rainbow grunted, straining hard as she very slowly lifted Twilight back up. She was on the verge of completely losing control of her bladder, unable to fully concentrate on holding it.

"S-sorry... I guess I got a little excited..." Twilight sheepishly apologized, trying not to look down.

Up above, Applejack was reaching down over the edge, ready to help pull Twilight back up. Rainbow Dash cringed as she was unable to prevent a small spurt of urine from escaping. A tiny wet spot formed on the inside of her panties, but just before she could completely lose control, Applejack grabbed Twilight's outstretched hand.

"What in tarnation were you thinking, girl? That whole bridge looked more unstable than a moldy barn in a windstorm!"

Behind Twilight who murmured a flustered apology, Rainbow landed back on the ground, her thighs pressed tightly together. Her little leak was thankfully not obvious, and fortunately for her, the others didn't seem to notice of her increasingly desperate squirming.

"Thank goodness Rainbow Dash was able been able to catch you in time." Rarity said, relieved that Twilight hadn't been hurt.

"But now how are we gonna get across?!" Pinkie asked, peering precariously over the edge of the ravine.

Out of nowhere, Rainbow suddenly felt a surge of pressure slam into her bladder, forcing another slightly longer spurt of pee to squirt out into her shorts before she could react. She needed to go, now!

"I-I've got it!" Rainbow shouted, shooting up into the air again and rushing back down into the ravine to quickly grab the limp end of the fallen bridge. With a surprising burst of speed, she carried it up over to the other side and to the stone pillars that had been holding it before Twilight tried going across.

'Come on! The quicker I can get this fixed, the quicker I can find somewhere to go!' Rainbow Dash practically shouted in her head, desperately fiddling with the ropes as she was forced to focus most of her attention on preventing what seemed like an imminent accident.

Despite how shaky her hands were from the strain, she was able to hastily re-tie one of the ropes, leaving only one left. She glanced up for a moment as she realized how obvious it would looking to anypony watch that she was trying desperately not to piss herself.

But to her surprise, the dense bank of the fog had just drifted right through the ravine after she'd gone across, promptly blocking the view from either side. She could have sworn she'd heard Twilight calling out to her, but for some reason, it sounded... muffled?

But then, as she was going to bend back down to fix the final rope, she was stricken by a painful cramp as her bladder muscles finally had enough of her body's urgent demands.

"N-no! N-not now, please!" Rainbow Dash grunted, both of her hands quickly shooting down to her crotch in an effort to hold back the oncoming tide. But it was too late. She was about to pee her pants.

*Hissss*

The damn shattered as a flood of warm piss shot out from her pussy, completely soaking through her panties in a matter of moments. The tiny spot in the front of her tight shorts grew at a rapid rate, expanding out from her crotch before streaming down her legs. Trails of yellowish urine-stained her blue coat as they poured down her thighs like mini waterfalls. A puddle formed in the dirt around her feet and fresh urine began pooling inside her shoes.

Tears in her eyes from the immense struggle, Rainbow finally sighed as she realized that she'd already passed the point of no return. Looking down glumly, her shorts glistened in the moonlight as more and more piss continued to flow down her legs and soak her shoes.

Rainbow couldn't help but gasp as, right when it felt like the stream was finally slowing down, it suddenly strengthened again. The sound of her stream impacting against the interior of her soaked underwear seemed to echo all around her, filling her with shame. Though, at the same time, she couldn't deny that the intense waves of relief were even more intense.

"Uugh... Why does this always have to feel so good?" She pouted quietly, now actively encouraging her bladder to continue emptying itself. The pleasing sensations that came from pissing herself quickly overpowered both the shame and embarrassment of what was occurring.

"R-rainbow Dash?!" A surprised masculine voice suddenly spoke from directly behind her. Rainbow's pupils shrunk to pinpricks as she realized whose voice it was!

Turning around slowly, she found none other than Spike the dragon standing just a few feet behind her, having apparently just emerged from the dense fog wall surrounding her. But before the mare could even think of something to say, she noticed something else.

Not only was he staring directly at her ass as she was having an accident, but he was also completely naked. Yet, the most attention-drawing thing of all, was what she could only assume to be his cock as it stood fully erect from the center of his crotch...

...And then it visibly throbbed...

Author's Notes:

Fun Fact Of The Chapter: The tail of the horse and of other equines consists of two parts, the dock and the skirt. The dock consists of the muscles and skin covering the coccygeal vertebrae. The term "skirt" refers to the long hairs that fall below the dock.

Also, trying to fit someone like Steven Magnet into this kind of universe, properly, is a weird process.