"AHH!" Twilight cried, head shooting up from the top of her desk.

The startled mare looked around frantically, confused as to why she was no longer being held aloft by the numerous slimy tentacles. But then, it all came rushing back to her.

'Oh... It was just a dream.' She finally realized, feeling a tinge of disappointment.

Shaking her head, Twilight tried to collect her scrambled thoughts. Reaching up, she rubbed a sore ache on the back of her neck. No doubt it was the result of her sleeping face-down on the hard wooden desk she was currently seated at. A tiny puddle of drool was left behind where her face once lay, smeared when she'd suddenly awoken.

Based purely on the various items strewn about the desk, she had dozed off while in the middle of writing next month's schedule planner, again.

"It felt so... real..." The young unicorn mumbled to herself quietly, gazing around at the inside of the large study that made up a majority of her home here in Canterlot.

Shifting slightly in her chair, Twilight finally noticed just how wet her seat felt. Looking down, a part of her very briefly wondered if the tentacles had reappeared, but no. As it turned out, it was something that she was surprised she hadn't smelled sooner.

"I guess that makes sense..." The mare sighed, recognizing part of the reason why her dream had felt so real... and more importantly so wet.

Her pinkish-purple pajama pants had been drenched, and a puddle of a foul-smelling yellowish liquid filled her seat. More was pooled in a large circle around the legs of her chair as well, extending out a few inches in every direction.

Yet rather than feel embarrassed or ashamed at realizing that she'd had an accident in her sleep, Twilight merely sighed and shrugged. This was nothing particularly out of the ordinary, especially after a wild dream like that.

Stretching her arms up over her head, Twilight let out a long yawn and turned to glance out of the enormous window that took up most of the far wall of her study. It was still pretty dark, but the sun had just started peeking up over the horizon, shading the entire city of Canterlot in a beautiful spectrum of reds, oranges, and yellows.

"Another beautiful morning in Canterlot..." she mused absentmindedly, scanning the many dimly lit bookcases that lined the walls of her home. In the back of her mind, Twilight idly wondered how many other mares might be waking up in similar messy circumstances all across the Equestria right now...

Glancing up at a clock on the wall, it read: ‘5:45’. It was honestly still pretty early to be waking up, even for somepony like herself.

Turning back to her desk, Twilight opened a tiny drawer and fished out her schedule for the day. After a dream like that, she would be triple checking everything. Starting from the top, she worked her way down the list of timestamps.

At 7:50, she was expecting a brand new shipment of books, courtesy of the Princess. Typically, whenever she was sent these shipments, it usually meant that there was some big test coming up.

Next, at 9:00 AM, she was, unfortunately, being mandated by the princess to leave the house for a few hours. Twilight groaned at the thought. She never understood why the princess always insisted on this so much. Why should she waste her time going outside when she could be using it to work on her studies at home? It just didn't make any sense to be wandering around in public for no good reason. Still, Twilight didn't dare disobey a direct order from the Princess herself, so she would have to adapt. Perhaps bringing one of her new books along would be a good idea.

Reading further down on the list, Twilight was reminded that she'd also need to prepare a present for her friend Moondancer's birthday party later this afternoon. It was always a struggle to find a suitable gift for her ‘friends’. Pretty much all Twilight ever wanted was books, books, and more books, but unfortunately, that usually didn't fly for a majority of them. Thankfully, Moondancer was at least a bit easier in that regard. That mare was almost as dedicated to studying as herself.

But as Twilight pondered over different present ideas, she was abruptly reminded of the other reason that her dream had felt so vivid.

"Ah~!" She gasped, startled by a sudden jolt of pleasure emanating from her crotch. It seemed that one of her fingertips had accidentally grazed her inner thigh. She was still incredibly horny.

'I guess... I do have some extra time before that shipment arrives...' Twilight thought to herself, biting her bottom lip indecisively.

Twilight made a quick check around the room again, looking for potential signs that a particular dragon might already be up and about. Not seeing any and once confident that she wouldn't be interrupted, Twilight leaned back in her chair. Usually, she'd wait to do this kind of thing in the privacy of her bedroom, but there was no harm in having a little fun out here, too, right?

Feeling a bit of gitty excitement at the prospect of pleasuring herself outside of her room for once, Twilight slid a hand down along her smooth stomach, gradually lowering her fingers down into the wet fabric that concealed her pussy. There was a sharp spike of pleasure as she finally made contact

"Mnf~... now, where was I..."

Spike murmured incoherently as he rubbed the blurriness from his vision. Removing his knuckles, he shied away from the dim sunlight streaming in through his bedroom window. He'd been woken up by the sound of what he thought was somepony shouting. More than likely, it was just Twilight getting angry or over-excited about something in one of her books. It wouldn't be the first time.

Squinting as he glanced out his bedroom window, Spike was honestly surprised to see how early it was. While Twilight could sometimes be a bit of an early bird, it was odd for her to be awake this early in the morning. Especially after working as late into the night as they had been.

As much as Spike wanted to go right back to sleep, a part of his brain nagged him that he should at least go check to make sure everything was alright. The last thing they needed was for some crazy burglar to have broken in, hoping that Princess Celestia's prized protege would have something worth stealing.

Spike slowly clambered out of bed, his vision still pretty fuzzy as he started rubbing his eyes again. Shuffling over to his bedroom door, he let out a long yawn, already eagerly anticipating his leap back into bed in a few moments.

Reaching out, he lazily grabbed the metal doorknob and quietly eased the door open a crack so he could peer out into the large study beyond. Half-heartedly scanning the room from left to right, he was about to call it all clear when he noticed some blurry movement on the far right side of the room. Quirking an eyebrow, he reached up one final time to rub the extra moisture out of his eyes.

As his vision finally focused, Spike's face transitioned from its usual dark purple and green colors to a bright shade of red in a matter of femtoseconds as he suddenly realized what he was staring at. In full view of the entire room, his older sister was laid back at one of her desks, masturbating furiously.

Her left hand was affixed to her right breast, rolling and squeezing it while her other hand continued digging down deep between her trembling thighs. If all that wasn't enough, he could quite clearly make out the sizeable yellow puddle surrounding her chair and even the dark glistening trails that ran down the legs of her pajamas.

Suddenly feeling more awake than he'd ever felt in his nineteen years of life, Spike quickly ran through the three immediate actions his current situation left available to him. He could either A, close the door, and scrub this entire encounter from his memory...

'Yea, no, not a chance.'

B, he could make himself known and endure what would probably end up being the most awkward and drawn-out sibling talk he'd ever have the displeasure of being a part of...

'Nope, definitely not.'

Or C: ...Enjoy the show...

It took Spike only another moment to settle on a decision as he quickly slipped one of his clawed hands down into his tented green boxer shorts. With a grunt, he eagerly began stroking his rock-hard shaft, watching the spectacle before him with great interest. Tiny puffs of smoke fumed from his nostrils with each firm pump.

"S-Spike...want..." He grunted quietly, fingers sliding up and down the long barbed length of his cock...

Waves of mind-numbing pleasure rippled throughout Twilight's entire body as she vigorously massaged her pussy through the piss-soaked fabric of her pajama pants.

She envisioned herself still being held aloft in the cold and slimy grip of the tentacles from her dream. Thrust after thrust, the ruthless tendrils pounded both her wet holes at the same time, filling every corner and crevice inside her with their tingly orgasmic slime.

Another would then prod at her lips, prompting the mare to open her muzzle wide. The imaginary phallus didn't hesitate to slide into her awaiting maw, plunging itself down into her tight throat. It pumped back and forth at a rapid pace, keeping in perfect rhythm with its brothers down below.

The one ravenously plowing her pussy quickened its pace as the inner walls of her pussy hugged and squeezed its slender sticky length. Twilight uttered a pleasure-filled cry as she pictured its brother delving deeper and deeper still into her bowels. Her anus clenched tightly around the slippery invader, causing her whole body to tremble feverishly as it continued to glide effortlessly in and out of her asshole.

Two more tentacles reached up from below and tore off what little remained of her school uniform with a single swipe each, leaving the violated unicorn utterly exposed to the horny creatures. The pair then coiled around both of her breasts, massaging and pressing the large orbs of flesh together.

The rapid thrusts were getting faster and faster now as each tentacle delved deeper and deeper inside of her. Twilight felt herself quickly approaching climax, but then, just as it seemed like she would finally be allowed to cum, all three of the slimy intruders reared back at the same time.

But Twilight was only left puzzled for a moment as a moment later they all thrust forward one last time. Twilight's back arched as she instantly came. Her whole body visibly shuddered and shook as thick ropes of slimy spunk filled each of her holes to the brim. The tingly green goop oozed out around the tentacles' pulsating lengths, with some dripping down off her chin as her eyes rolled back and her horn audibly hummed.

Finally going limp in her seat, Twilight continued to bathe in the hot afterglow of what ended up being an incredibly intense orgasm. Her breasts jiggled with each of her labored breaths. Post-climax exhaustion finally began taking its toll, her eyes slowly starting to drift closed. All the while, her rigid nipples still protruded up through her shirt.

*Thrump!*

In a flash of movement, Twilight suddenly lept up out of her chair, scrambling back behind her desk in a matter of seconds. The tense silence that followed seemed to last forever until finally, a set of panicked purple eyes peered up over the top of the desk. They were wide as dinner planted as Twilight quickly scanned the study for the source of the strange sound which had come from somewhere on the other side of the room.

'What in Equestria was that?!' She thought as numerous possibilities ran through her dopamine-addled mind in rapid succession. From it being merely the result of a fallen book to the case of a crazed serial killer that was here to get her, anything was possible at this moment.

But after waiting for almost a full minute without spotting or hearing anything out of the ordinary, Twilight slowly stood up. Casting a quick spell, she flung a ball of white light into the tall ceiling above. It shone down over the entire room, lighting up every dark corner a pony could try to hide in. She scanned the room one more time, face still glowing beat red as she pondered the idea that somepony could have been watching her this whole time.

'...Could it have been Spike?' She suddenly realized, noticing that his bedroom door was indeed in the same general direction from which the sound had originated.

Tip-toeing as quietly as she could in her piss-soaked pajamas, Twilight snuck up to Spike's closed bedroom door. Reaching out, she slowly turned the knob, cracking the door open just wide enough for her to peer inside. She let out a sigh of relief as she saw Spike still strewn out on his bed, lying face-down on a pillow where he snored quietly.

'Well... I guess it wasn't him then.' She decided, closing the door slowly behind herself as not to wake the innocent dragon from his peaceful slumber...

*Creeeek-Click!*

"..."

"Okay, that was way too close for comfort," Spike whispered to himself, body relaxing as he heard Twilight’s footsteps fade away from his door.

He had just barely been able to get back into bed in time to avoid being found out. It was already a miracle that she didn't notice the giant white splotch now plastered over the inside of his door. He would have to hurry and clean that up before Twilight could discover it later, but for now, he was just thankful to have not been caught in the act.

"Damn my forceful dragon cum!" He groaned, shaking his head at the absurdity of his statement.

Still, he was lucky to have successfully gotten away with what had to be one of his riskiest meat-beating operations to date. Truthfully, this was far from the first time he'd jerked it to his adoptive big sister, but it was undoubtedly the first time he'd ever caught the mare herself in the act. Of course, he highly doubted that he was the one dominating her erotic thoughts back there. If only...

Ever since hitting puberty, he'd started to develop... less-than-brotherly feelings for his sister and-or mother. It was something he'd just come to accept over the years, but even now, it just felt so wrong. Granted, Incestuous relationships weren't the most uncommon thing in Equestria. The nobility of Equestria was particularly famous for it. Still, there was just something about the attraction he'd built up for Twilight that always made him feel a bit guilty.

There was no doubt in his mind that she didn't share the same kind of feelings as he did. Or at least, if she so, the mare was a master at hiding it. It would probably never work out anyway. He didn't want to mess with their already pretty positive relationship.

Rolling over in bed, Spike sighed and tilted his head down to stare at the comical white splatter he'd left behind on his bedroom door. Reaching down underneath his mattress, he fetched a roll of paper towels that he'd stowed for this exact purpose. Still, cleanup was going to take a while, and he'd need to be careful not to make any noise unless he wanted Twilight checking in on him again...

She had been searching for what felt like ages now, but so far, Twilight had been unable to find any reasonable explanation for the strange and quite loud sound that had startled her during a very intimate moment indeed. Eventually, she was forced to give up the hunt, albeit reluctantly. Leaving stones unturned had never been one of her strong suits.

'Well, whatever that was, it doesn't seem like anypony was watching me at least...' She thought, regrettably still not one hundred percent certain of that assumption herself.

Casting another quick spell down at her feet, instantly, the heavy musk of arousal and urine vanished from the air. The stains left behind from her accident were still clearly visible, but she wasn't too concerned about that. If anything, it would help to conceal any other stains that her little session might have left behind.

"Now... what to do with the rest of this very eventful morning..." She mumbled, turning her attention back to her schedules.

Author's Note

Fun fact of the chapter: I think I re-wrote the dream sequence about 5 times before settling on a final version.