Spike stared blankly up at the ceiling as he lay in bed, trying desperately to think of something to do with the rest of his time that didn't also involve making another big mess. It would likely be a while before he could safely leave his room without arousing any suspicion. There was also little chance that he'd be getting back to sleep either after what he'd seen.

Looking around at the inside of his room, his eyes lingered on a few posters hanging from the walls. One in particular scored most of his attention. It was a pinup, one he'd gotten from a stall at a 'reading convention' Twilight brought him along to a couple years back. It featured none other than his favorite action comic book superheroine: The Masked Matter-Horn!. The spandex suited mare was posed seductively over a dark city backdrop, her hands resting on her hips as she grinned slyly at the viewer.

Technically, the character was originally from a for-kids comic that he used to read when he was younger. This poster though was from much more a recent reboot that really started to take off right around the time he hit puberty. The new issues catered to a strictly adult audience, usually carrying some kind of erotic twist alongside the same crimefighting goodness that made the old issues the best superhero comics of all time. At least in his opinion.

The main six characters, The Power Ponies, had all been aged up from their original underage counterparts and their spandex suits were tighter and sexier than ever before. Launching the very same day he turned 16, the new series had so far been a smashing success with the now grown-up audience of the originals.

Getting excited just thinking about it, Spike turned and reached down into his bedside table. Pulling open the bottom drawer, he fished out the latest issue: The Masked Matter-Horn And The Desperation Dagger!. The cover depicted the normally proud and heroic unicorn, now hunched over in a dark alleyway. Her hands were both stuffed down into her crotch as she looked up at the reader with a distressed expression. Glistening wet trails could be seen running down her legs as urine gushed through her fingers, a small pool of piss growing around her feet.

It was well-known in Equestria that, upon reaching the seemingly magical age of eighteen, any and all mares would quickly find themselves losing a large portion of both their bladder and bowel control. As often was the case the first few times, many wouldn't even feel the need to go until they were already desperate and usually far too late to get to the nearest bathroom in time.

Many found this sudden and strangely spontaneous change in a mare's biology often needless and unnatural, but this was just how things had always been. In fact, there were even parts of Equestrian culture that were centered around the phenomenon. And while a majority of mares still found it embarrassing or even shameful, others had come to embrace their sudden incontinence in rather unique ways.

Twilight was once such mare. While in the privacy of her own home, she often had no issues with 'letting go' whenever she felt the urge, especially if she were too busy doing something to bother with quickly visiting the bathroom. She claimed that she'd always found it relaxing. It was certainly something Spike had come to enjoy. As would most stallions...

In public, however, Twilight absolutely despised the unwanted attention that having an accident usually drew. Yet, for whatever reason, she never seemed to mind letting loose in his presence. Not that he was complaining of course...

Twilight was staring off into space out the large window of the study, her head resting on her right hand as she sat in her favorite reading chair. A small stack of papers and sticky notes stood on a small round table next to her, a quill floating motionless over them.

She was supposed to be going over this week's schedules one last time, to make sure everything was correct and up to date, but every time she tried, her mind kept drifting. Ever since giving on finding the source of the mysterious sound, she'd been unable to think about anything else.

One of her crazier theories, in particular, continued to dominate her thoughts. It was the possibility that it had actually been Spike. For some strange reason, just the notion of him watching her while she masturbated filled her stomach with butterflies. But it made no sense! After all, It's wasn't like he'd even looked at her in that way... right?

"Ugh, why is this getting to me so much!" She groaned, reaching up to massage her temples.

'He was sound asleep when I checked on him, so why do I keep thinking about it!'

*Groowwll*

"Maybe I'm just hungry..." She thought, her rumbling stomach a very welcome distraction.

Looking up to check the time again, the clock now read 7:41. Her new shipment of books from the princess would hopefully be arriving on time this month. Some of the mail ponies had a habit of taking their sweet time with her deliveries.

After that, Spike would probably emerge from his 'cave' up as he was usually up right in time for breakfast. She hoped he'd be willing to fix something up for the both of them this morning.

'I wonder if I should ask him if he heard anything strange this morning...'

But then, as Twilight pulled her hand away from her face, she felt her index finger stick for a moment. Curious, she inspected her hand and was surprised to discover some kind of strange white substance that was stuck to the tip of her pointer finger. How had she not noticed this before? And where did it even come from? Bringing the spot up to her nose, she gave it a quick whiff. Did it smell like... cinnamon?

*Grrooowwll*

Her stomach growled again, tempting her to give it a lick. Hunger, eventually getting the better of her, eventually caused Twilight to shrug before promptly licking the strange white stuff off her finger.

'Hey, that's pretty good! Hmm... I wonder if Spike knows how to make cinnamon rolls...' She thought, idly sucking on her finger in hopes of finding a little more of the stuff.

Getting up from her chair, she put her schedules back into their designated drawers and made her way towards the winding staircase that leads down to the main floor. As Twilight started down the wide steps, she took notice of how dusty they were getting.

She didn't usually go down to the main floor very often. There were just far too many open windows that often left it feeling too chilly and windy. There were a couple more floors further down as well, but she didn't use them for much of anything besides extra storage space. The kitchen was down there too, though she didn't usually visit that herself much either.

Oh, the number of times she wished she could find out whoever designed this place and give them a piece of her mind! The whole tower seemed like it was built exclusively with pegasi in mind too. The 'front door' was at least three stories up, with a long staircase spiraled down around the building to the ground. It was a workout just to get to the front door.

"Especially when somepony's in a hurry..." She grumbled, skipping past a few embarrassing memories.

Finally reaching the 'ground' floor, Twilight glanced up at the little shelves she'd placed near the front door when they moved here. With most of her books upstairs, she could hardly even remember what she'd left down here. With a shrug, she floated one of them over to herself at random. Glancing down at its cover, her eyebrows rose at the title.

'A Brief History Of The Wagon Harness. Huh, I don't remember even owning this one, much less actually reading it.' She thought.

Curious, she plopped herself down on the floor by the door with the book in hand. If nothing else, it would help pass the time while she waited for the mailpony to arrive...

*Knock, Knock, Knock*

Twilight felt herself jump as the sound of somepony knocking at the door ripped her from the contents of the book. Standing up and looking through one of the glass windows next to the front door, she spotted a large cart full of books parked on the landing.

Looking out the other window, she spotted the delivery pony. Though it was odd, she'd never seen this mare before. Most of the mailponies that delivered around here knew her pretty well at this point, so it was kind of strange seeing somepony new.

Stepping back from the door, she turned the handle with her magic and swung the door open. She was met with a grey, cross-eyed, pegasus mare who was staring down at a clipboard before eventually realizing that her knocks had been answered.

"Oh! Hello, Sir or Madam! I, Derpy Hooves, am here today to deliver you your mail!" The mare declared proudly, fluttering her wings.

She was wearing the standard Canterlot Postal Service uniform, though the manner in which she'd put it on caused Twilight's right eye to twitch and a small blush to rise to her cheeks. The female version of the uniform normally consisted of a grey button-up collared shirt, usually cropped about an inch above the belly button, as well as a blue skirt and a small mail carrier cap.

It was a pretty common style of uniform, employed by many of the delivery services in and around Canterlot. The colors and logos generally were the only things that changed. While it normally only showed off a slice of a mare's midriff, 'Derpy' was showing off quite a bit more.

The shirt she had on was clearly one too many sizes smaller than standard issue. Instead of reaching just above her belly button, the hem of her shirt only stretched down to around the bottom of her ribcage. This resulted in a substantial amount of underboob which peeked out along the bottom. To make matters worse, seemingly every single one of the buttons had been put through the wrong holes, leaving it looking messy and crooked. Large gaps between buttons made it clear that she also had no bra to speak of either.

If all that wasn't enough, the skirt was incredibly short, maybe only a few inches the most. Due to this, Twilight could also quite clearly tell that she was missing a fairly important article of clothing normally worn underneath. Though, based on how badly she'd buttoned her shirt, Twilight wasn't sure if the mare had even noticed yet. The unicorn's blush darkened as she imagined what other ponies must have seen as she flew over them.

'Well, at least she's here right on time?'

"Ahh... h-hello. Are, um, are all of these books from Princess Celestia?" Twilight asked, trying not to look down too much.

"Yes, mam!" Derpy replied optimistically, bouncing in place. The stretched buttons of her shirt strained and stretched as her breasts jiggled around inside, threating to give way at any moment.

"Well, uh, alright then. Thanks for being on time... I guess..." Twilight said, glancing at the titles of her new books as she floated them each inside one by one.

"You're very welcome miss! Now, I must be off! I have many more very important deliveries to make to many other ponies in need!" The grey mare announced heroicly, swirling around and leaping up into the air... only to then fly straight into another nearby house.

Twilight wasn't paying any attention though as she looked over each of her brand new books. Already, she'd begun to notice a similar theme among their titles. Elementals And Where To Find Them, Finding Lost Relics, The Science Of Enchanted Items, etc. Her upcoming test would no doubt involve something related to them all.

However, one of these books stood out from all the rest. Mostly due to the fact that it didn't seem to have any kind of title whatsoever. The cover featured golden unicorn from the neck up, with small decorative golden swirls in each of the book's corners.

'What's this one supposed to be?'

Looking down into the cart, she found the list that normally came with each of these shipments and began going through it, matching each book she'd received to a name on the list. But upon reaching the end, she was puzzled to discover that there was no mention of this mysterious book. Everything else had already been accounted for.

'Hmm, I might bring this one with me when I have to go out later today. Maybe that'll shed some light on this. While the Princess might be forcing me to go outside, that doesn't mean I can't at least bring a book to read!' She thought triumphantly.

Looking up, she only now noticed that the mailpony had already left. Looking over at the cart, she could still see a number of other packages inside.

'Wasnt she supposed to take this with her?'

"Whew... that issue never gets old" Spike mumbled as he stuffed his comic back into its special drawer after re-reading it for what must have been the millionth time since he bought it.

Turning to look out his window again, it seemed to be a fair bit later in the morning, thus it was probably safe to leave his room by now. He was getting pretty hungry anyway. Jumping up out of bed, Spike rummaged through his small dresser drawers and quickly threw on a pair of tan cargo shorts and a simple green t-shirt.

Exiting his bedroom, he spotted Twilight standing in the middle of the study, her eyes closed while numerous books floated all around her. Many were exchanging places with others on different shelves. She still had on the same clothes as earlier, evident from the damp stains that ran down the insides of her legs.

"Morning Spike." Twilight greeted, though her somewhat irritated tone made Spike take pause. She hadn't even opened her eyes to look at him yet.

"Er, good morning Twi." He greeted back, suddenly feeling a bit worried.

"Spike. I have a very important question for you." She said, suddenly dropping every single book she had been holding at the same time as she turned towards him. Several hardcover novels crashed onto the ground, seemingly emphasizing the intense expression on her face.

"A question that could very well change our relationship for the rest of our lives together."

She stomped towards him, grabbing him by the collar and yanking him down until they were both face-to-face. Her piercing purple eyes stared straight through him, threatening to peer into his very soul.

'Does she know?! Shit! What do I say?!' Spike thought, internally panicking.

"L-look Twilight I—"

"Spike!" She suddenly boomed, interrupting and startling the fire-breathing dragon back silence...

"Can. You. Make. Cinnamon Rolls?"

"...What?" Spike mumbled in reply, mind coming to a halt as he tried to process Twilight's question.

"I am having a ridiculously huge, and so far unexplainable, craving for cinnamon right now. I need to know if you can make me Cinnamon rolls!" She explained, finally letting go of his collar.

A wave of relief washed over Spike as Twilight continued ranting about her spontaneous craving. She'd looked more serious than he'd ever seen her before. Even more so than in the last few days leading up to a final exam.

"Uhh, y-yea...I think I can do that, no problem." Spike answered sheepishly, still a little fearful in case this turned out to be some kind of strange ruse.

Twilight's face brightened instantly, appearing as if he'd just told her the most amazing news she would ever hear in her lifetime.

"Yes! Oh, thank you so much, Spike!" She cheered, lunging forwards and wrapping him up in a tight hug. Her soft breasts pressed up against his scaley chest, causing him to blush as she rested her head against his shoulder.

"Um, oh yeah, no problem at all." He replied, awkwardly returning the unexpected but certainly not unwelcome embrace.

"Alright, well, you let me know the moment that they are finished, I'm absolutely starving!" She exclaimed excitedly, breaking away and returning to her books, an adorable smile stretched over her muzzle.

'I swear Twilight, one of these days, you are actually going to give me a heart attack.'

With a sigh, Spike turned and headed for the kitchen to start making breakfast. He really hoped that one of the cookbooks in the kitchen could teach him how to make cinnamon rolls. Honesty, he had no idea where to even begin, but he hated the idea of ruining the adorable excitement bubbling from his older sister...

Author's Notes:

Fun Fact Of The Chapter: Derpy is very adorable.

EDIT 5/1/2019: Made some revisions.