"I hope this lead doesn't turn out to be a dead end. I don't wanna go home empty-handed after promising we'd find her."

The Elements of Harmony, minus Applejack, were on a train far out in the desert. That was the reason they were all the way out here, Applejack left Ponyville for a rodeo competition, and had sent a note that she would not be returning. Now her friends were on the search, hoping to find their girl and bring her back.

"I don't know how we'd break it to the Apple family," Fluttershy worriedly questioned.

"I don't know how we'd break it to Ponyville," Twilight responded.

"I don't know how I'll make it to the next stop!" Pinkie was sitting on a bench by herself, frantically crossing her legs back and forth. She grimaced in pain, trying desperately to hold it all in.

Pinkie was starting to regret her earlier decisions. Looking for a lost friend was tiring work, and the group had been keeping their fluid intake high. In the excitement of the hunt, Pinkie was a little too eager to hurry up and get on the train while her friends took their pit stop. She had also neglected to pay attention to the length of the train ride, if she knew how many hours it would be, she without a doubt would have gone too. But the past was the past, she couldn't change that now.

Her friends were having their own conversations and worries, doing their best to ignore her predicament. Not that attention would help, there really wasn't anything they could do for her at this point. She could swear she saw Fluttershy look a few times and turn away just as quickly, blushing hard. Pinkie was also convinced that Rainbow looked her way and shook her head, ashamed. I don't want to be in this situation either, Dashie.

She wouldn't normally be so grumpy, even in her inner thoughts, but an intense need to pee could do that to a gal. And boy, was this desperation a doozy. She couldn't think of another time where she had to go this badly. True, she had dealt with holding long before this, rock farming didn't offer bathrooms besides on the ground hoping your sisters wouldn't look, but she couldn't even get that possibility now. All she could do now was hold it in.

And Pinkie really really really needed to keep holding. Besides avoiding an embarrassing accident in front of her friends, and not ruining the train's bench, she had very good reason to keep her clothes dry. Pinkie Pie was not a mare that thought things through fully. She had already neglected to confirm the time she'd be spending inside the train, but it went further back than that. She had no reason to suspect their search would take long, and therefore didn't pack an extra set of clothes. If she peed, she'd be stuck in the same wet shorts for as long as it took to find Applejack.

Not to mention, she liked the clothes she had on, and really did not want to ruin them. It wasn't that they were fancy or important, but they were her clothes. They were already yellow, so she didn't have to worry about that (though she still avoided thinking about the color). However, she did want to watch out for her panties, as they were her favorite pair. Nothing much, just a thin black fabric with drawings of candy corn all over it. Pinkie would do anything in her power to not pee in those.

If her power would last that long. Pinkie wasn't going to disillusion herself, she had to tinkle soon. And she had no idea how much longer she had to last. The train was already feeling like it was taking forever, a combination of her hyperactive nature and overly full bladder pressing against her. Pinkie wouldn't be able to tell how long it was realistically supposed to take, and that wasn't giving her much hope. If she knew there would be a potty in 10 minutes, she'd have reason to hold past her limits, given the promise of imminent relief. Right now, she was only keeping it in just to keep the mess back as long as she could, without knowing if it would pay off.

She crossed her legs tighter and shoved her hands between them. "Oooh, how much longer is this going to take?" Pinkie was getting frantic.

The other girls finally looked her way, now that she made herself known. Rainbow shook her head again. “Pinkie, didn't I tell you to use the bathroom too before we left?”

“Well, I'm sorry, Rainbow Dash! I didn't listen to your infinite wisdom, and I now see that I made a horrible mistake!”

Pinkie's friends all stared at her, somewhat scared at her sudden outburst. That was the sort of thing she would never, ever do. Even when she went temporarily insane from loneliness, she didn't insult her friends. Pinkie realized she had gone a little far, and looked away, back towards her legs. “I-I'm sorry, I shouldn't have snapped like that. I just...I have to tinkle sooooo much!”

Rainbow was admittedly still a little pissed at her friend for not paying attention to anything, but at least her other three friends were sympathetic. They had all been through a similar situation at some point in the past, so they knew it wasn't easy for her. Twilight was the one to speak up to comfort her friend. “Try to hold on, Pinkie, we should be arriving in Dodge Junction in a few minutes.”

Pinkie slowly nodded and turned her attention back to herself. She was happy to have the support of her friends, but she didn't have much faith in herself. True, it was a little better knowing it wouldn't be long before a bathroom was available, but that would still require hanging on for that. And of course, she was having extreme difficulty with that part. Any significant wetting was still at bay, but she was most certainly dribbling in her panties.

In the small amounts she was leaking now, it wouldn't be much of a problem. No, the real problem was that she couldn't stop. It was a light and scattered stream, and it meant next to nothing on its own, but it wouldn't take long to build up. With the force she was putting into her hands for holding, she could feel through her shorts and her panties were definitely damp. Soon enough, it would leak through and be visible, which was only a short hop from being beyond all hope. If she could just hold on a little longer...

“Alright, we're here,” Twilight called. “So here's the plan; it's a small town, it shouldn't take long to...” Twilight was interrupted by Pinkie rushing past her, making a beeline towards the train car door. With one hand still firmly clamped on her shorts, she used the other to pound on the door, pleading with it to open. Finally, it unlocked and swung open, and Pinkie wasted no time racing out, towards a nearby wooden shack.

Once she arrived at the hut, Pinkie took the time to actually look at the building she was pressed up against the door of. After all, it could have been a storage shed or something just as mundane. That's why she was ecstatic to see a familiar symbol carved into the door; the Equestrian standard marking for a female restroom. Not that the gender mattered at this stage, Pinkie would have settled for anything remotely resembling a bathroom from a passing glance.

“Oh thank you Celestia, thank you so much!” Praising the high heavens, Pinkie pressed on the door to open it...and it didn't move. Confused and frantic, she pushed harder, with no better results. And that's when the conclusion hit her: it was occupied. Now, at the absolute worst of times. The shock hit her hard, and she started leaking again, much more prominent this time around. She was losing her hold, and had very little time to get moving.

She started banging on the door. “Hurry hurry hurry, hurry up in there!” Pinkie could only keep dry (or dry-ish) for a few more seconds.

It was Pinkie's lucky day, then, that the door swung open. Considering Pinkie was on the other side, she didn't see who exited, but she did her them scoff and say “Some girls, sheesh.” Pinkie paid it no mind, considering what had just opened up for her. She rushed into the empty stall and placed her hands around the waist of her shorts, ready to pull them down...and then something clicked in her mind. That voice, she had most certainly heard it before...

“Applejack, you're okay!” Pinkie had completely forgotten about her current need, overpowered by her happiness to see her friend again. As Applejack walked away, Pinkie hopped and followed her, calling out her discovery. “I found her, I found her, I found her, I found her!”

The rest of their friends turned towards them to see what the shouting was about, and subsequently saw Applejack. They all crowded around their lost pal, offering their thanks for locating her and questioning why they had to find her in the first place.

Pinkie, meanwhile, was still celebrating her victory. “I found her, I found her, I found her, I found her...” She was interrupted by her bladder screaming at her, making absolute sure it hadn't forgotten how badly she needed relief, immediately. It was done waiting, as Pinkie Pie started full-on peeing herself out in the open. She did the best thing she could think of; she clamped her hands to block the stream and crossed her legs to help. She then sputtered out her excuse, “B...be right back!”

Pinkie cursed herself out internally for being so distracted to suddenly ignore the most important thing she needed to get done, when she was so close to doing it. Determined to at least make it out of this as well as she could, she flew as well as an earth pony could into the outhouse, slamming the door behind her.

Now isolated, Pinkie went about removing her clothing as fast as she could, hoping to reduce damage now that the dam had burst, only hold back by her hands taking the blow. She yanked her shorts down and let them fall to the floor. By that point, she had been able to clearly see the toilet, and gave up. She had been holding it in bad for too long, and nothing was going to be accomplished by waiting any longer. So, not caring that she still had her panties on, she sat down on what constituted as a toilet here and could finally not worry about relaxing.

As was to be expected, the waterfall was instant, strong, loud, and incredibly satisfying. Pinkie moaned happily, not caring about who could hear her outside. Sure, she was still technically wetting herself, considering her underwear was directly in the line of fire and getting beyond soaked. But she couldn't find a reason to worry about it. She had initially figured it was just lost in the relief, but as she regained more thought processes after the shock of getting to go had worn off, she realized something: she really, really liked the warm feeling peeing her panties was giving her.

She wasn't sure why it felt so amazing. Not that she really cared the reason why, the combination of warmth and wet so close to her most sensitive areas was a perfect feeling, and that was all she needed to know. And mixed with the tingling of an overfilled bladder emptying after too long, and possibly the sound of splashing in the puddle she had made in the sand below (the outhouse toilet was just a block of wood at sitting height with a hole in it, the sand of the town the only thing below), it was positively arousing.

The feeling down below was getting too strong for Pinkie, and she needed to do something about it right that second. She shoved her hand into her panties, and rubbed herself out one, and it was feeling amazing. Pinkie was a seasoned masturbator, and this was, by far, the best one she had ever experienced. She hadn't bothered to stop peeing, and was instantly rewarded. The warm stream hitting her hand, being rubbed all over, it was simply flawless.

But all good things have to come to an end, and no matter how much urine she was holding in, Pinkie had to pee it all out at some time. And since fate was shining on her that day, she did manage to climax just as the stream ended. Her loud gasp as she orgasmed was clearly heard, as there was a quiet knock seconds later, followed by Fluttershy's soft voice. “Um, Pinkie...are you alright in there? I was told to c-check on you.”

Pinkie, still in the afterglow, managed to respond. “Don't worry Flutters, I'll be out soon.” She breathed in and out a few times to regain her composure, and now realized she would have to do something about her clothing now, without extras. She looked closer at her shorts, and realized their damage was surprisingly minimal. Coupled with their natural yellow color, and she could get away with wearing those more. Her panties were, however, beyond salvaging.

Pinkie took a brief fraction of a second to make a decision for her current predicament. “Eh, not the first time I've gone without underwear.” Her shorts already on the ground, she stepped out of them long enough to pull her panties off, wring them as dry as she could into the toilet hole, and put them in her pocket. She then shook her hands as dry as they would get, pulled her shorts back up, and stepped out of the shack.

Fluttershy was waiting outside, blushing, most likely because she heard too much. Pinkie either didn't notice, or didn't care. “Hey Flutters, do you have any kind of hand sanitizer I could borrow?”

Fluttershy nodded and reached into her purse, pulling out a small bottle, when Pinkie took it and squirted some of its contents out before returning it. As she was rubbing her hands together to get them clean, she reflected on the last 10 minutes events. She wasn't sure what she had discovered about herself, but she most certainly knew she'd be trying it again. Who knows, she may have just realized a new fetish.

Author's Note

Ironically, the pony that gave me the easiest scenario to work it (still love the writers for doing that, by the way) took me the longest to write. Loss of drive and whatnot. Been busy with a life, school, and Pokemon.

Next chapter, JUMPIN' ON THE COCO TRAIN, BABY. CHOO CHOO