Author's Note

DISCLAIMER: Do not continue reading if you do not approve of diaper usage or diaper lover themes. If you do not like it or are under legal age, please do not keep reading.

Please do not redistribute, alter, repost this story or anything else I write on this site or anyplace else without my permission.

Coverart By: theStargrazer

This Story Contains:
Diaper Lover Themes (Heavy)
Diaper Usage - Wet (Heavy)
Diapers (Heavy)
Genderbending (Heavy)
Selfcest (Heavy)
Sexual Situations (Heavy)
Diaper Usage - Mess (Medium)
Humping (Medium)
Masturbation (Medium)

Ponidox

Ponidox
By Scribe Feather

Spring time was a golden medium between it all. It supplied the cold nights for bundling up with a good book and the warm days for nature walks and splashing in puddles after a good rain storm.

There was no doubt about it, spring was Twilight’s favorite season. Despite winter being a festive time of year and summer having the sunshine, there was something special about spring. Like clockwork, the warm spring weather always stirred some giddy feelings in the unicorn, it was tough to really explain. She always felt charged, tingly with vigor, and full of energy that always left her sensitive and buzzing. And on top of that, her magic always seemed to flow better during the spring, but of course that could just have all been coincidental.

Today, on this lovely spring midafternoon, Twilight found herself gravitating towards her bedroom. There were subtle things about the room that drove her to seeking it out when she had a few hours set aside for quiet time. It had taken a week, but she finally found that particular opportunity. The purple unicorn rushed through the Golden Oak Library when she finally confirmed her time alone. She couldn’t get to her bedroom fast enough.

Once inside, Twilight locked the door behind her and made sure any windows were closed and locked as well. Everything had to be perfect for her alone time and she didn’t want any interruptions rudely derailing any steam she might have built up.

Her heartbeat quickened as a strong desire built up inside her chest. There was only one thing she needed to make her private time perfect and it came in the form of a soft plastic package hidden away in her closet.

The package was a soft, rectangular shape that was dark blue and white in color. On the front of the package read the words “Harmony Briefs: Absorbent Undergarments”. The half open package held a stack of clean, white diapers, thick enough to absorb a half a day’s worth of anything an incontinent pony might use it for.

For some, these diapers meant protection and security, but for Twilight they stood for comfort and more importantly sexual drive. She had yet to find anything else that gave her a more powerful orgasm than a thick, crinkly diaper taped around her waist.

With her hooves already shaking and her heart beating a mile a minute, Twilight hastily nabbed a diaper out of the package and wrapped it around her waist. Doing this song a dance before, she expertly taped the soft garment on and was left with a warm, fuzzy feeling.

Once the diaper was on, Twilight didn’t hesitate to give it a good soak. It took only seconds for her bladder to begin spraying into the waiting diaper, swelling up the thirsty padding with her warm urine. A shaky sigh of satisfaction slowly slipped out of her as her back legs quivered at the sensation. She stood there in silence as the torrent of urine slowly swelled the diaper up and leached up the back.

A few more minutes passed and Twilight only stood there, subtly biting her lips. She waited for all the urine to slowly soak into the thirsty diaper, swelling it up to twice its thickness and triple its weight. She punctuated the last of the soaking with a little butt wiggle, causing the heavy diaper to sway a tiny bit. The most pleased smile remained on her face for a long while after the great satisfaction of an empty bladder and full diaper.

With her perverse urgencies satisfied, a new desire became more prominent. The warmth of the diaper and subtle squishiness of it all caused her chest to flutter and her breathing to become erratic. She continued biting her lips as her back legs began to squeeze ever so subtly together. The tighter she squeezed, the more her breath quivered with mounting pleasure. Prodding the warm, swollen back with a hoof stirred the same response and only further drove her insane with sexual intensity.

Before she knew it, Twilight flung herself onto her bed, plopping squarely on her diapered rump. A pleasurable moan expelled out of her as her legs wiggled in the air. A front hoof came slapping down between her legs to grope at the wet diaper between her thighs. The garment crinkled and squished loudly under her touch, filling the room with loud crinkles that quickly acquired a distinct rhythm.

She did her best not to moan, or even breath for that matter, so that she could partake in the loud, unadulterated crinkling. Any breaths she did manage to take were quick and shaky. Biting her lip some more, Twilight squeezed her legs together and began rubbing up a storm.

After a solid fifteen minutes of uninterrupted diaper rubbing, she paused a bit to catch her breath. Her chest rose and fell with each breath. As her heavy breathing subsided a new sound began to materialize. Fading into the foreground of Twilight’s attention was the sound of a series of crinkles rhythmically echoing into the room. The cadenced crinkling was joined with shaky, shallow breathing that would pant in spurts.

Twilight looked up to find a purple stallion sitting on the other side of her room. Only it didn’t look like her room, not quite. On the opposite end of where she laid was another bed almost identical to the one she laid upon. In fact the entire opposite half of the room mirrored her side of the room, down to the very bookshelves against the walls. The likeness was so uncanny that the only thing to tell the two sides apart was that the other side of the room had a more “boyish” color palette of blues and dark purples.

The stallion laying on top of the bed didn’t even notice Twilight as she examined the other side of the room. He instead continued grinding his hoof into his own diaper, crinkling up a storm that filled the empty air. His back hooves hovered in the air as he moaned sensually with each series of grinds. Judging by the large tent in the front of his diaper, he was enjoying himself quite a bit.

Twilight’s cheeks flared up as she unknowingly became audience to the mysterious stallion’s masturbation session. She could only think to start things with a simple greeting. “H-hello?”

The stallion gasped, closing his back legs together before shooting his head up with a jolt. His mane was a similar shade of midnight blue and even had the stripe of pink and blue around his horn.

He looked to Twilight with wide eyes bulging with surprise and shock. “Who are you?! What are you doing here?! How’d you get in my room?!” He stuttered out the questions as he scrambled into a sitting position, doing whatever he could to cover up the thick diaper around his waist. His hooves, his tail, the bedsheets, anything that would help cover up his shame to the stranger.

“I was going to ask you the same question,” Twilight replied as she to closed her legs as well.

After the initial shock, the stallion finally took stock of the other side of the room, quickly realizing the mirrored image of his side. “What is...?” He was lost for words.

“I don’t know what’s going on,” Twilight answered the question she somehow knew the stallion was asking, “one minute I was...enjoying some alone time and then-”

“You appeared out of nowhere!” the stallion quickly concluded. “But...who are you?”

“M-my name’s Twilight Sparkle”

“D-Dusk Shine,” the stallion answered pointing to himself, “nice to meet you.” He had half a mind to get up and shake the mare’s hoof as a welcoming gesture, but the pillowy diaper around his waist quickly convinced him not to. He instead curled up where he sat, coiling his limbs close to him in an attempt to cover up his shame.

Twilight took notice of the stallion’s half exposed flank. Vaguely hidden underneath the diaper’s leg ruffles was a star shaped cutie mark surrounded by five smaller stars. “Your...cutie mark,” she started, baffled, but also intrigued, “it’s-”

“Exactly like yours!” Dusk exclaimed, looking up from his shy blush to make the very same observations. “But...how?”

“I’m...not quite sure...” Twilight answered, scratching her head at the puzzling conundrum. “I remember reading about parallel universes once...Perhaps...”

“Perhaps our universes merged into one another somehow,” Dusk finished the thought before looking around the bedroom, “or at the very least this room...”

“And...the uhm...thing you’re wearing,” Twilight awkwardly pointed out, too embarrassed to even say the word ‘diaper’.

“I-I was just curious how they felt,” Dusk so crudely fibbed.

“Uh yeah, m-me to,” Twilight answered back, closing her legs together to slightly cover up her soggy diaper a bit more. “Just uhm...curious...” There was a long pause as the two switched between staring at each other and awkwardly looking at the floor. Finally Twilight broke the silence with a shaky, “h-haven’t you ever wondered?”

“About what?” Dusk asked.

“Wondered what would happen if you ever found a pony like you? Like me?” she bashfully looked away as she continued, “somepony who was into diapers and willing to go through with it? Somepony who was into wetting their diapers...”

“A-and messing them...” Dusk added in with a meek and equally bashful expression.

“Y-yeah...” Twilight answered, “a-and I am you. Just a little different.”

Again, the conversation trailed off into silence. The two felt one step closer to the goal they both unknowingly shared, but neither of them could build up the courage to take the first step.

Finally Dusk spoke up, hardly looking Twilight in the eye, “so uhm...I noticed that your diapers...”

“Wet, yeah...” Twilight then looked up at Dusk’s diaper which was disappointingly dry, “but yours isn’t...”

“I-I was thinking about it!” Dusk quickly answered, “Sh-should I...?”

“If you want,” Twilight answered back.

Dusk steadily climbed out of bed and grew quiet as his back legs so subtly spread apart. He remained frozen where he stood, acquiring a distant look in his eyes. He ended up closing his eyes after a few minutes, realizing that having Twilight there was making things difficult.

After a couple minutes of still silence, a loud, muffled hissing could be heard. Twilight watched with wide eyes as the stallion before her soaked his diaper, causing it to swell up in the front before growing heavy and drooping low. What started as some hissing, turned into a torrent of urine that quickly filled Dusk’s diaper almost all the way up. She felt herself gravitating towards the diapered stallion.

“W-wow...” was all Twilight could find to say. “I-I never knew how...hot it was to watch somepony else wet their diapers...”

“M-me neither,” Dusk answered, humbly closing his legs only to find some resistance from the heavily swollen diaper. He looked away for a moment or two, only to slowly turn his gaze back over to Twilight’s diaper that was just as yellow as his own. “I uhm...really like how your wet diaper looks on you...”

“Th-thanks...” Twilight answered, closing her legs as well, “I uhm...couldn’t help but notice you were...playing when our rooms merged.”

Dusk gulped, “y-yeah...I was just uhm...you know, it just seemed like the right thing to do.”

“Have you ever done...that with another pony?”

“N-no, I’ve kept the diaper stuff private...”

“Yeah, me too...”

The two shyly looked at the ground for another moment or two before Twilight slinked in for a quick kiss. Unsure at first, Twilight leaned in a second time for a longer one. Dusk returned the favor by kissing her back, wrapping a hoof around her to pull her in. They exchanged kisses back and forth as each one became more sensual and lasted longer.

Things came so naturally after that. As they traded kisses, the two slowly moved back to Dusk’s bed. Moans and crinkles filled the room as Dusk was thrown backwards onto the bed. Twilight joined him seconds later, hovering over him with her diaper pressed against his. Naturally, she began grinding her diaper against his, feeling waves of sexual energy coarse through her with each bounce.

Dusk moaned as well, quickly becoming hard inside the freshly warmed diaper. However with each thrust brought another thought to the stallion’s mind. The bouncing mare put pressure on his bowels which had grown fuller during their brief conversation. Now the urge to go was growing stronger and things were made difficult as Twilight humped his swollen diaper front. Each bounce made it harder and harder to hold in.

Finally Dusk leaned back with a groan as the urge became too strong. A faint fart was heard before a hefty load emptied into his diaper. Even as Twilight bounced on his throbbing member, he submitted to his body’s basic urges and pushed out whatever his bowels had waiting. He felt like he was being squeezed like a toothpaste tube. The diaper under him ballooned outwards to accommodate the large mess that was filling it up. He grunted quietly as he soiled himself.

Unbeknownst to him, Twilight slowed her advances once she noticed quiet grunts coming from the stallion. She tapered off her lustful humps until she was left floating over the grunting stallion. She blushed a deep red through the whole thing as her eyes could hardly look away from Dusk’s diaper. She watched intently as his diaper bulged out the back.

When he was finished making a mess of things, Dusk relaxed that part of his body, allowing his mind to slowly lean back towards the sensual pleasure that was rubbing against his cock. His diaper was now heavy and he now had a blush filled face, much more blush that he had started with. But Twilight didn’t seem to mind, in fact she seemed more engaged by Dusk’s actions.

After Dusk had finished making a baby of himself, shamelessly messing himself in front of her, Twilight gave into her own basic needs. Her body tensed up above the stallion as tiny grunts pumped out of her muzzle.

Dusk’s eyes widened as he watched Twilight’s eyes close shut and her face grow red with strain. Recognizing the expression right away, he peered down between her legs, just in time to watch it’s yellowed mass droop downwards around her backside. He continued to watch as he got front row seats to the fill up. Twilight grunted and was quite quickly rewarded with a firm, but squishy mass pooling around her butt, compressing between her and the soggy diaper.

Once she finished messing herself, Twilight opened an eye to see Dusk staring back with wide and aroused eyes. She then opened both eyes and smirked before leaning in for a deep, sensual kiss.

Dusk leaned into the kiss as well, closing his eyes as a drawn out moan oozed out of his mouth. Their thick diapered crotches pressed back into each other after that, resuming the dirty thrusting. This time it was with even more passion from the both of them.

The joined crinkling from both of their diapers filled the room as they rubbed against each other with vigor and zeal. The added weight of their messy loads caused the diapers to sway and slap against the other reminding them of their naughty decisions with each padded thwap.

Twilight now had an intimate desire to grind against Dusk’s diaper. Their mutual diaper using seemed to stir a feeling of a most peculiar feeling of love in the mare. Even Dusk raised his crotch into Twilight’s advances because with each bounce of his came a squishy landing that further fueled his throbbing arousal.

They hugged close, coiled around each other as their diapers slapped against one another. Moans and crinkles fed their mounting arousals and with the ever building sexual energy came hasty breaths and stronger humps.

Soon the two reached that wonderful turning point in every sexual situation. With finely tuned synchronization, the two ponies quickened their humps, quickened their breathing, and finally grabbed each other tightly in one orgasm filled hug. Their diapers pressed deep into one another as staggered grunts and pants puffed out of the two diapered ponies. Sexual juices warmed their diapers as the soggy padding soaked up what it could.

The two remained close as they simultaneously rode out their separate orgasms. The only movement seen from the two was the occasional twitching of the hips or a shuddered breath. After a few more minutes, even those subtle movements simmered down into slow and lethargic gestures.

Dusk dropped to the bed once he was finished, wearing the smuggest smile on his face. Twilight recovered from her own earthshaking climax just enough to crawl up beside the stallion to cuddle his side. Her heavily used diaper pressed into him as her forehooves so lazily draped over his front. With their exciting diaper play slowly fading behind them, Dusk and Twilight basked in the afterglow.

Such wonderful climaxes were felt long after they were reached, leaving the two ponies lovingly close to each other. For another ten minutes or so the two just laid there, content with just relaxing in a post-sex daze.

Twilight was the first to say anything after the long bit of silence. “That was amazing,” she quietly said.

“Yeah,” Dusk answered, giving his diapered front a bit of a squeeze, “I never thought I’d...”

“Be doing it with yourself,” Twilight knew just what the stallion was trying to say, “only it’s me and at least you know I won’t be telling anypony about our fun.”

Dusk smiled as he pulled an arm over Twilight, pulling her in close for an intimate hug. “I’m so glad I found you then,” he smiled before giving her another kiss.

Twilight smirked and scooted in closer to the stallion’s embrace, “I was about to say the same thing.”