Morning Preparations

by Tsunogami

Rating: mature
Tags: Rumble, Slice of Life, My Little Pony: Friendship is Magic, Human, Thunderlane, Romance, Porn, Fetish
Length: 4772

A Colt gets ready for his day in diapers

Makes me nostalgic posting here again!

Anyway, This short story was originally written as just a diaper fetish story, but I converted it into something pony related just for fun. Here it is! Enjoy some brotherly love in dirty diapers!

All characters are 18+ to conform with posting guidelines.

Published 2024-02-27 09:20:00 UTC
Last updated 2024-02-27 09:20:00 UTC

Ch 1

For some reason when I woke up that morning, I was surprised to find it was raining steadily outside behind the light blue curtains of my second-floor bedroom window. I mean, weren’t special days like today supposed to be bright and sunny with birds chirping or something like that? But no, not today apparently. Well, whatever I thought, no amount of rain was going to depress me today, it was simply too good for that. My heart lurched though, and I hurriedly glanced at the alarm clock next to my bed afraid that I had overslept and that any minute mom would come storming in demanding to know why I wasn’t dressed and ready to go, a particular concern coming directly from one or more unfortunate past experiences. I breathed a sigh of relief to see the black hands on the white clock face read 8:26. I wasn’t planning on leaving until 9 or a bit after so I had plenty of time to get ready. Fortunately, most of my packing had been done the previous day so that wasn’t a concern.

With the immediate worries out of the way I turned my attention to my older brother Thunderlane, lying next to me in bed. I was on my back facing up at the underside of our bunk bed, where he could sleep above me if he wanted, but he usually chose to be down with me. He was on his side facing away from me partially curled up. It was early summer, and the nights were warm enough now that we didn’t feel the need to sleep under anything more than a light sheet, and even that usually got kicked off during the night to be found as a wadded mound at the end of the bed by morning as it had this time once again. However this made me happy because it meant that I could see my brother laying there in nothing but his diaper, gently breathing, apparently still asleep. He was wearing a cute disposable diaper which was reasonably thick, covered his cute round butt quite nicely, and held him securely high up on his waist. The diaper was a bright pink with a pattern of small dark pink ribbons and dots speckled about with a pair of wavy dark pink and white stripes running down the sides of the back. The outer plastic layer of the diapers was especially smooth and shiny, and I always enjoyed seeing it and even feeling it when I could. These diapers were made for girls, so mom said, but he apparently really liked them and so she kept buying them. Like usual he had soaked them quite thoroughly and the telltale darkness had spread up to within about two inches of the top in back. From experience I was sure he had leaked at least some with that much pee in them as he had gotten into bed last night already pretty wet in front like he often did and so it didn’t surprise me to see his diaper so close to capacity.

I on the other hand had gone to bed dry and so my diaper was not as fully used as his. I was also wearing a disposable diaper of a brand especially made for teens like me who wanted more protection than a simple pullup could provide or again, like me, didn’t need diapers at all anymore but enjoyed wearing them so much that diapers became something important to wear to provide comfort throughout the day. As cute as my brother’s pink girl diapers were, I liked mine even better. They were a bit thicker than his, though not obviously so, and were white in the center but over the hips and sides of my butt the plastic was a light blue, and there was a pattern of small colorful stars in a line near the top in front. Like his, the outside of my diaper was very smooth to the touch and shiny, so it glistened even in dim light. Both of our diapers had decent padding even on the sides over the hips which made them great for wearing to bed as we could wet them while laying on our sides without worrying as much about major leaks. The front of my diaper was pretty soaked from when I had woken up briefly in the middle of the night and wet it, but I could feel my butt was still mostly dry. Though the pressure growing quickly in my bladder told me my diaper was about to resemble my brother’s in yet another way.

I laid my head back on the pillow feeling the plastic sheet covering the mattress crinkle a bit under me as I laid a hand over the front of my diaper and relaxed. A hot gush of pee almost immediately burst out of my slightly stiffened penis and into the already thick wet absorbent gel. I let out an audible sigh as I felt the wet warmth trickle down between my legs and over the sides into the padding covering my hips to pool under me to be absorbed as quickly as it arrived. I could feel my diaper swelling as it was increasingly saturated. However even the very full bladder of a colt like me was not enough to overcome an only partially wet diaper and my flow dribbled to a stop just before I began to leak. My diaper was obviously more wet than before and felt very warm and squishy on the inside and thick and smooth on the outside. So good in fact that my hand seemed to have a mind of its own and I began to rub and gently squeeze the front of my diaper, occasionally rubbing my now pretty soaked butt through it too.

For some reason while doing this I stopped paying attention to how my own soaked diaper looked on me and began to watch my brother in his. This was not the first time this change in interests had occurred, and lately more often than not it ended with me feeling him and then feeling extra good in my own diaper for a brief period before returning back to feeling relaxed. But then I realized that if I continued on this way our playtime could go for a bit and it might not be a good idea to lose track of time. I didn’t have to be in too much of a hurry yet. But if we got distracted that might change and I had no desire to get into trouble, especially when it could so easily be avoided. With this in mind, I gave the front of my swollen diaper a few last pats and sat up in bed with a big stretch, pressing the palms of my hands against the underside of the top bunk as just something to push against. Doing so also was a daily test of strength to see if I had the ability to push hard enough to lift up the heavy thick plywood sheet and mattress on top. I did, if only just an inch and for only a second or so. Still, I was silently proud of passing my own test of strength.

Trying not to wake Thunder I quietly swung my legs out over the edge of the bottom bunk and stood up slowly to minimize whatever sounds I might make. I padded across the hardwood floor over to the closet my bro and I shared. Even just the few steps I took across the room was enough to make me sigh with pleasure at how my soaked diaper felt on me as it squished around between my legs as I walked. Again, as quietly as I could I swung the double closet doors open. On the inside of the left-hand door a full-length mirror had been installed so we could see ourselves in full while dressing. Like I had begun to do more often over the last year or two I admired how I looked in just my soaked and bulging diaper. The quality of these diapers was made apparent as despite how heavy they were with my pee they did not sag in the least despite bulging out nicely, and the saturated gel was not showing any signs of falling apart into clumps as often happened with cheap store diapers. The tapes were still just as tight and firm as they had been when I put the diaper on after my shower last night. I always made sure to tape my diapers on nice and tight, the effect made the diapers look and feel even better in the way they firmly hugged my waist. The top of the diaper was almost a centimeter above my belly button in front and an equivalent height in back, though maybe just a bit higher up.

Going over to the chest of drawers which had been placed inside the closet to save space in the relatively small bedroom I pulled open the second drawer from the top to decide what to wear. Of course, I had no intention of changing my diaper, and my mom wasn’t about to do that at my age, so whatever I put on would have to fit over my diaper well. In the end it didn’t take long to decide. I ended up going with an older pair of faded light blue jean shorts. They were kinda wide in the legs but I had grown somewhat in the few years since mom got them for me and so they were getting a bit tight in the waist and over my butt, especially with my thick diaper on. The legs had once ended down just above my knees but now only came down about two thirds of the way to them. Because my diaper came up past my navel the denim shorts were not quite high enough in the waist to cover it, so the top of my diaper showed about a centimeter in front and two in back if I didn’t have a shirt on, or even sometimes if I did. Speaking of shirts, I chose a baseball style t-shirt which was a light green color but with dark green sleeves. Like the jeans it was a few years old and so was kinda tight on me and also no longer quite long enough to reach to the top of my jeans. I had to work a bit to get the jean shorts over my diaper but once they were on and zipped up, they were tight but quite comfortable over my soaked diaper. I tried to tug up on the waist of my shorts to better conceal my diaper, but I knew no matter what I did my diaper would show for sure if I bent over even a little. The shirt followed the jeans on and then from a small box for such things I took out a small simple necklace. It was a small painted pendant of the Wonderbolts symbol. I always enjoyed watching the group especially since my brother was a member. The small symbol was hung on a simple black cord and hung down to a place just between my nipples on my chest. I returned to the mirror now that I had a proper outfit on to test. I liked what I saw, especially how my wet diaper made my butt seem even rounder and fuller through the shorts.

I took a folded up pair of socks out of a different drawer and somewhat clumsily put them on at the same time that I grabbed my pink backpack from where it was resting by the door. I turned around once more to check on Thunder, but he was apparently still as asleep as he’d been before, though he had rolled over a bit more on his front. I smiled at him and whispered a goodbye as I backed out through the door. Turning around I headed straight to the stairs and hurried down them without making too much noise, a good habit to have growing up in a household where waking others up in the early morning by making a ruckus was a sure way to get yelled at. Fortunately it was late enough I didn’t have to worry about such things today.

I enjoyed going down the stairs in my bulky soaked diaper as the smooth plastic of the leg guards rubbed up against my inner thighs and how the heavy wetness of the diaper rode on my hips and butt as I descended the stairs. Landing at the bottom with a soft thump, I turned the corner and found my mom already in the kitchen and a light breakfast having already been made and put on the table for me.

“Well finally! There you are, if you hadn’t come down in the next few minutes I was going to go up there and get you out of bed. You had a good sleep?” My mom asked in a cheerful tone.

“Actually yah, I was worried I’d have trouble going to sleep, but I slept fine! Maybe because of my diaper?” I wondered out loud as I sat down in the chair, feeling my heavy soaked diaper squish around me.

My mom smiled at me knowingly as I said this.

“It probably was at that… speaking of, did you change your diaper this morning?”

“No mom, I haven’t, I don’t think I need to yet, it feels fine still.” I said while shifting my butt around on the chair seat a bit.

“Hmm… well before you leave I’ll check your diaper to see if I agree with you on that or not.”

“Please let me stay in it? I promise it won’t leak anywhere.”

“Well I do know how much you like your diapers Rumble, so I’ll probably let you, but you’re going to the Palace District in a carriage owned by the royal family. I won’t have you making a mess of it.”

“No worries mom, I packed a towel to put under my diaper if I really have to, and the pony who’s escorting me there, what’s her name, Rarity? Anyway, she told us in her letter that it’s fine and I shouldn’t have to worry about my diapers.”

“Well yes, you’re right, but even so I’ll still check you.” She replied.

“Sure, thanks mom!” I replied around a mouthful of toast.

About 10 minutes later I had finished my breakfast and was busy brushing my teeth in the upstairs bathroom when I heard familiar footfalls in the hallway and the bathroom door opened without so much as a knock. Of course it was Thunderlane, only he’d just come on into the bathroom with me in it without a second thought.

“Hey there little buddy!” He said cheerfully coming over and giving me a hug from the back as I stood in front of the sink.

I made some noise of greeting around my toothbrush and continued cleaning my teeth as his hands moved lower and held me by my hips.

“Hey so uh, I know you’re about to get going but could you do me a solid? My diaper is pretty much at the max, but I want to keep it on. I’m probably gonna have to poop soon and I’d rather do that in this already used one than a fresh one. But like, I’ve gotta pee again, and if I do I’m gonna leak a lot more for sure and if mom sees that she’ll make me change. So uh, could I use your diaper? I’m guessing it’s not as used as mine is since it looks like you’re about to go out in it.”

I leaned forward and spat out the toothpaste making sure as I did so that my diapered butt pressed into the front of his diaper behind me. After rinsing out my mouth I turned around in his arms to face him.

“Well Its pretty wet already… but I think there’s still room in back, but like, make sure not to get it on my clothes, I don’t want to change them or my diaper, and if mom makes me change my diaper because it’s too wet, I’m gonna blame you, understand?” I said, smiling, but also serious.

“Ok, ok, don’t worry your little butt, I’ll be careful!” He said as he bent down to kiss me. I closed my eyes and met his soft lips with mine and our tongues met a bit in the middle.

We broke off the kiss after a few seconds and I turned around and unzipped my shorts and pushed them down so he would have access to my diaper in back. I watched his reflection in the mirror in front of me as he undid the top two of the four tapes of his diaper and pushed the front down far enough that his long hard penis popped out. It was thick and glistened in the light from the pee soaked inside of his diaper. I felt a tug on the top of my diaper in back and felt the warm soft head of his penis press into the small of my back then slip down a bit into my diaper just enough that his pee wouldn’t go everywhere as it sometimes did when he wasn’t being careful.

I heard him sigh and relax and at nearly the same time a gush of hot pee erupted from him and sprayed down into the top of the back of my waiting diaper. I felt his hot pee spread into the padding there before slowly soaking further and further down as his stream continued on strong and steady. The warmth of my big bro’s pee slowly covering my butt made my own penis get quite hard in the front of my own diaper as his stream continued. Fortunately just as the new wave of wetness approached my crotch from behind and was mixing with my own pee and I was starting to worry I’d leak now for sure, his hot stream dribbled to an end, and he released my hips and stood back to tape his own diaper back up. I wiggled my hips at him.

“Hey now, I had to take my shorts down for you, least you could do is help me put them back on again.”

“Anything for you little guy.” He said smiling and reached down and pulled my shorts back up over my diaper and reached in front of me to do up the zipper and snap. Of course he took this opportunity to give my hardness a good squeeze through the thickness of my diaper. I didn’t say anything to this but didn’t complain either. It had felt really nice after all.

He kissed me briefly again and told me thanks again as he slipped back out through the bathroom door. Alone again, I felt my now even heavier diaper through my shorts, feeling the weight of it and considering that now, thanks to Thunderlane I was now in the same predicament he was, just one more good wetting away from a leaky diaper.

Leaving the bathroom I came back down the stairs to the kitchen again, all the while enjoying the physical movement of my body in my warm heavy diaper.

As I headed to the front door to grab my backpack, my mom came out from the living room and headed over to me.

“Now Rumble, you’re not trying to leave without a diaper check are you?”

“Of course not mom, I was just about to tell you I was leaving!” I protested.

She smiled at me and told me to push down my shorts to reveal my diaper. I did so, so she could have a good look. Since my shorts were down around my ankles I couldn’t spread my legs much, but I didn’t need to anyway.

“Well now, you sure have wet it a lot, but… I can see that you were telling the truth, your diaper is not quite leaking yet… but If you wet it again, I’m not sure if it will hold everything in, it will probably start to leak.”

As my mom was saying this she cupped her hand over the front of my soaked diaper and gave it a few gentle squeezes followed by rubbing up and down. Her other hand did the same but in the back, feeling my butt through the thick wet padding. I have to admit Rumble, these things are cute on you, I can see why you don’t want to stop wearing them.”

I felt myself begin to grow stiff in the front of my diaper, something that was happening more and more these days.

“Well yes, there’s that, but also Thunder looks so good in his diaper that as long as he’s wearing them I want to look the same!”

At this point mom released my diaper with one last good squeeze to the front and told me to pull my shorts back up.

“You know that’s really sweet of you, I hope Thunder appreciates how much you look up to him. Not all brothers are so lucky.”

I blushed a bit as I pulled my shorts up, part of me already missing the feeling of Mom’s soft hands on my diaper.

“Yah well… you know I like him and all…” I said awkwardly.

“I know you do!” Mom said bending over to kiss me on the top of my head.

“Now here’s your backpack, behave yourself, and make sure to follow everything Rarity tells you to do! No ifs, ands, or buts, you understand?” Mom asked me, her tone getting a bit more serious.

I nodded vigorously, not wanting to say anything to upset her so close to my departure from the house.

“Well then! That’s settled! Off you go and remember to have fun and make friends if you can, I’ll see you tonight!” Mom said as I hurried out the door tugging the shoulder straps of my backpack on while I ran across the wide wooden porch and down the steps into the yard. The rain had slackened off and so while it was still cloudy and the trees were dripping, it I wasn’t worried about getting my clothes wet.

Back then we lived out in the countryside and our house was set back quite a bit from the road with a long winding dirt path that connected the two. As it approached the road this path bent around a grove of trees and so where it connected to the road was out of sight of the house itself. As I rounded the trees and came in sight of the gate in the white fence that ran along the road here I slowed to a more normal walking speed as I saw the carriage had not yet arrived. I also quickly felt around my butt and crotch to make sure my diaper had not leaked into my shorts during my sprint from the house. It hadn’t so far as I could tell, but my relief at this was overshadowed by a new concern. Since not long after I had finished breakfast I had a growing urgency to go poop. However back in the house, in my hurry and rather unrealistic expectations, I had hoped to just hold it during the carriage ride and either go in my diaper or in a bathroom after that as circumstances would allow. I now realized there was no way this was going to be possible at all. I briefly considered going back to the house but there had only been about ten minutes left when I had gone out the door and I was afraid that if I went back now, I wouldn’t be there waiting when I was supposed to be picked up. The thought of ruining my special day for an ill-timed bathroom break was enough to keep me rooted to the spot. There was no way I was going to leave now!

I decided that there was nothing for it, and that I was after all wearing a diaper for a reason, plus Rarity had said my wearing diapers wouldn’t have an effect on our itinerary. So standing there alone along the gravel road I gave into my body’s desires and relaxed my butt. Almost immediately the back of my diaper was filling with a rush of hot thick gooey poop that quickly spread around between my legs since my tight jean shorts kept the diaper from expanding out in back as much. I sighed contentedly feeling my butt again, gently pressing at the thick goo now filling my diaper and working its way towards the front. Not being able to help it I crouched down balancing myself on the front of my feet. This made my shorts and diaper much tighter between my legs and squished my poop around even more. The feeling was good enough that I used my hands to press in and up on my crotch through my shorts which made a big squishy mass of poop spread up and over most of my hardening penis.

The sound of a carriage rapidly approaching over the low hill to the east brought me quickly back to reality, and I stood up hurriedly and put my hands on the fence rail to keep them away from my now very messy diaper, I looked guiltily down the road. Fortunately the carriage seemed far enough away that no one would have been able to tell what I’d been doing from that distance. No longer worried about discovery I relaxed a bit and my hand drifted to the front of my diaper again, coming to rest on the bulge of it through my shorts. I felt the soft poop spread around there, covering my boyhood now and I hoped the smell would not be so bad. I decided I’d for sure lower the carriage windows.

When the carriage finally arrived I was standing straight with my hands to my sides, no indication of my diaper (aside from the bulge and a bit poking above my waistline), and certainly no sign that I had been playing with it just a bit earlier.

The carriage was not overly ornamental, but it certainly was of very good quality! And the two stallions pulling it both gave me a happy wave and told me to enjoy the ride. I smiled at them and climbed up the two steps into the back of the coach shutting the door behind me.

Almost immediately it lurched into motion before I had a chance to even take my backpack all the way off. I sat down hard on the plush cushion with a big squish and immediately lifted my butt up to feel it for any new leaks. I thought I felt a faint bit of dampness in the denim where it covered the leg holes of my diaper. Figuring this would only get worse I pulled both a small blue bath towel and a clear plastic sheet and placed them down on the cushion and then quickly sat down on them before the rocking carriage could unbalance me. Finally being able to relax I looked around the space and as I expected I was alone for this part of the ride. I sat back and enjoyed the feeling of how the bouncing and swaying of the coach over the uneven road surface made my thoroughly dirty diapers feel. Suddenly remembering about the smell which was becoming pretty strong in the enclosed space I went to open the window next to me.

It didn’t take me long to realize however that the windows on this particular coach at least were not meant to be opened, or if they were the way to do it was quite well hidden. After a few more fruitless attempts I gave up and returned to my makeshift cushion to worry. The smell in the confined space was pretty strong now, but there wasn’t anything I could do about it. I thought about opening the door a crack but figured that would just worry or anger the drivers, so I decided against that. Not knowing what else to do I just placed my hand on my crotch to feel my full diaper and leaned back in the plush seating to watch the countryside go by as I headed into Ponyville.

Author's Note

Hope there are a few out there who still enjoy this kinda thing.