To Explore the Realm of Dreaming

That night, Twilight and Rainbow Dash returned to Princess Luna's tower. They'd come prepared-- though their definitions of 'preparation' were quite different. Twilight Sparkle made it a point to bring a set of shapelessly comfy flannel pajamas to sleep in. Rainbow Dash, in the meanwhile, simply started peeling out of her clothes as soon as they walked into Luna's bedchamber. Stark naked, the blue pegasus clasped her hands together behind her back and gave an arching, feline stretch that only coincidentally thrust her modest breasts outward.

“Forgetting something, Rainbow?” Twilight said, decidedly looking away from her friend's lithe body.

“Hey, we're all gonna wake up naked in dreamland anyway, right?” Rainbow Dash shrugged. “Why bother?”

“Indeed. In my youth, there were times where neither I nor my sister bothered with garments, save for certain special occasions.” And with that, Luna neatly undid the tie to her dressing gown and allowed it to slip off her shoulders to pool upon the floor. The Princess of the Night was somehow even more imposing without clothing, as if the cloth were holding back the perfection of her form.

“Really?” Twilight dragged her eyes up the length of Luna's nigh-amazonian body, all the better to focus on her face (and the bemused smile on Luna's muzzle). “I thought all those paintings were ... embellished?”

“To some extent.” Princess Luna shrugged. “But we didn't come here to discuss art history.”

“Ah. Right.” Twilight smoothed out her pajamas, then settled on the far edge of the bed. “Let's ... let's do this. But I'm telling you, my dreams are probably going to be really boring and they might even put you to sleep. Or ... double sleep. Or something."

"Yeah? Might as well see for myself then, huh?"

"I ... I guess so." Twilight said, and closed her eyes.

A curtain parted.

Twilight squinted against a bank of suddenly-bright lights. By reflex, she held a hand up against the glare-- at which point she noticed several very important things.

She was naked.

She was naked on stage.

She was naked on stage and she didn't even have any notes.

“Not this one again.” Twilight muttered-- though thankfully not into the slim microphone on the podium in front of her. A podium that was far too narrow to hide any part of Twilight's bared body to any degree. A red-hot blush rose up in her cheeks and upper chest as Twilight squirmed in the warm, open air of the auditorium.

And in the audience, was ... everypony.

At least, it seemed that way. There wasn't an empty seat in the house, as seemingly the entire adult population of Ponyville and Canterlot combined had been crammed in. Applejack, Rarity, and all the rest sat there in the front row, looking up at her. Behind them, Trixie and Starlight Glimmer sat alongside various notable citizens of Canterlot, and behind them were even more ponies, row after row of them. At least there weren't any foals present, Twilight absently noted. Maybe they were checking ID's at the door.

Twilight tightened her fingers on the edge of the podium and closed her eyes. Unbidden, a public-speaking cliche came to mind:

Just imagine everypony in the audience is naked.

And when Twilight opened her eyes, they were.

The audience didn't seem to notice the change-- even with their clothes suddenly, inexplicably gone, they kept their eyes on Twilight, expectant, not bothering to cover themselves.

“That's right. It's just a dream.” Twilight said. “My dream.”

Twilight cleared her throat, then spoke up, her voice effortlessly carrying through the hall. “I'd like to thank you all for com-- for attending this lecture.” As she spoke, the words built up on one another, as Twilight knew exactly what she was here to talk about.

“The subject of alicorn sexuality has been a subject of discussion for quite some time-- albeit typically not of the academic variety. There are countless paintings, engravings, and anonymously published texts that portray Equestrian Princesses in a somewhat ... racy manner. In many of them, there is a common thread that assumes that, along with the wings, horn, and slightly taller stature, an enhanced libido is a major part of being a Princess.”

“For a thousand years, this has mostly been a matter of conjecture, as Princess Celestia was the only Princess in all of Equestria. However, with recent ... developments, we have the opportunity for further study.”

“I posit that the average Princess is no hornier than the average 'normal' pony. Given my time as both a plain unicorn and as a Princess--” Twilight took a moment to splay her wings out and arc her back subtly, using her own body to demonstrate her point. “I've found that my personal preferences have not changed in the slightest. However, anecdotes are not data-- therefore there is a need for further research. Thankfully, the presence of other Princesses allows for an experiment. Princess Luna, Rainbow Dash-- would you two come out please?”

On cue, Princess Luna and Rainbow Dash walked in from either side of the stage. They were nude, of course-- and proudly so. Tails and wings bobbed with each sashaying step, the two ponies displaying themselves for the crowd-- for Twilight. At the back of her head, Twilight wondered if she was dealing with the 'real' Luna and Rainbow, or some sort of dream-facsimiles thereof. Either way, they were there, and they were quite eager to help.

“Thank you both for volunteering.” Twilight nodded. “If you would, please sit on the examination tables, and place your hooves into the stirrups.” The side-by-side tables of padded vinyl and polished steel might not have been there when Twilight started her lecture, but she wrote that off as just more dream logic.

Again, Luna and Rainbow complied, leaning back upon the examination tables, spread-eagle. A few ponies in the audience murmured amongst themselves, leaning in closer.

“As you can see, from the neck down, Rainbow Dash and Princess Luna are anatomically identical.” Twilight bit at the inside of her cheek as she glanced from Rainbow's pussy to Luna's, then back again, savoring the sight of their crinkled lower lips so lewdly exposed. She walked between the two examination tables, reaching out with either hand to run down the length of both her friends' bodies. Rainbow's svelte form wriggled beneath Twilight's touch, and Luna's breath hitched ever-so-slightly.

“The experiment is a simple one.” Twilight continued her lecture to the rapt audience. “I will apply similar levels of stimulation to both a Princess, and a normal pony, and we can all observe the results. And, while the most comprehensive study would include an earth pony and a unicorn as well, I only have two hands.” Twilight winked at the crowd, and a faint, amused chuckle rippled through the room.

This done, Twilight turned around (coincidentally giving the audience a lovely view of her derriere) to face her experimental subjects. The very act of getting into place alone had gotten them worked up-- both Luna and Rainbow Dash were breathing harder, even if Luna did a better job of hiding it. With Luna on the left, and Rainbow on the right, Twilight slid her hand down both ponies' inner thigh, savoring the feel of the smooth, warm flesh. And then, her fingers found something smoother and warmer still as she brushed fingertips over their respective pussies.

Twilight wasted little time-- she pushed the two middle fingers of each hand between the waiting, needy folds of pegasus and Princess both. Luna's pussy was tighter than Rainbow's, but only slightly. Both ponies were nearly dripping, and the added stimulation only got them wetter.

Twilight tilted her wrist and curled her fingers just-so, pushing through slick inner walls to find just the right spot. And sure enough, she did, as both Rainbow and Luna moaned in exquisite pleasure. Twilight worked her fingertips back and forth, massaging each pony's g-spot, driving them to further and further arousal. Rainbow Dash was the more active of the pair, bracing her hooves in her stirrups as she arched her whole body, grinding herself against Twilight's hand. Luna was slightly subtler in her reaction, though it wasn't long before she reached up to fondle at her own heavy tits, tugging at her nipples as Twilight fingered her.

“As you can see,” Twilight said, “while both subjects have slightly differing reactions to stimulation, neither is particularly hornier than the other. Which is to say ... they're both horny sluts.” Twilight blinked as the words left her mouth-- even though she knew she was right. She was a scientist, after all. “But, just for further clarification, I will now use my thumb to massage each subject's clitoris ... “

The added sensation got even Luna to moaning, her breathy gasps echoing through the auditorium. Twilight kept on going, finger-fucking faster and faster, 'til heavy, musky droplets of each subject's nectar were dripping down her knuckles.

Luna bucked her hips, flailing out with one hand, entwining her fingers with Rainbow Dash's. No sooner had they clasped hands, the two test subjects gasped in unison. Tight walls clenched around Twilight's fingers, and the both of them shuddered in wanton pleasure.

The audience broke into applause.

Twilight eased her sticky fingers out of her friends, then turned around again. She waited for the clapping to die down, and then cleared her throat. “As you can see, the simultaneous orgasm under the same amount of stimuli suggests that a Princess is no more or less horny than the typical pony. But, in the interest of full transparency, I'm ready for ... further demonstration.”

Twilight idly licked Luna's nectar from her fingers, and smiled as Princess Celestia and Rarity both walked onstage, each one a study in alabaster elegance. Celestia carried herself with effortless grace, while Rarity stood a little bit stiffer, as if she were walking down a runway (despite the utter lack of any clothing to model). Behind them, Princess Cadance and Applejack stood in the wings, awaiting their own turn on the examination table.

Twilight managed not to drool as she sized up the naked, eager, perfect bodies of her test subjects, but it was a close thing. She took in a deep breath and shivered, relishing the sensation of such unquestioned authority.

“I fucking love science.” Twilight murmured to herself.

And then she woke up.

Somewhere during the night, Twilight had wriggled out of her pajamas, and found herself wedged in between Princess Luna and Rainbow Dash's respective nude forms. Despite the unexpected awkwardness, the warm, soft feel of other bodies curled against hers was entirely too pleasant.

Twilight looked up at the canopy to Luna's bed, and wondered if she could teleport away without waking either of her erstwhile bedmates.

“Damn, Twilight. That was wild.” Rainbow Dash opened her eyes and smiled. So much for that plan.

“Uh.” Twilight blushed. Squirmed. “Did I ... experiment on my own dream versions of you two, or was it more ... personal?”

“'twas both.” Luna said. “In the realm of dreams, the distinctions between what is and what is not can become ... blurred.”

“I'm sorry!” Twilight said. “I didn't mean to, uh ... objectify you like that. Or, uh, subconsciously maybe I did because it was a dream but actual-consciously I'd never make you do anything like that.”

“You sure? 'cause it was pretty hot.” Rainbow Dash grinned, and leaned up to kiss the tip of Twilight's nose.

“I find it intriguing that even your erotic dreams are academically inclined.” Luna didn't bother hiding her wry smile.

“Well, uh. Rainbow Dash got a trophy in her dream, so I suppose it really is a window into any given pony's deepest desires-- not just the sexual ones, either. So ... what just happened totally isn't weird and awkward and stuff. Right?”

“You are learning fast, Twilight Sparkle.”

“So is going into ponies' dreams going to be this sexy all the time?” Twilight asked.

“For the most part, yes.” Luna said with a shrug.

“Sweet!” Rainbow Dash said.

“Except for when one must sometimes battle a dream-eater or some other monstrosity.”

“Sweet.” Rainbow Dash said again.

“Hopefully we won't have to worry about that anytime soon.” Twilight leaned her head back against Luna's chest (which made for quite the comfortable pillow, she had to admit).

“So we can keep doing the dream-magic thing?” Rainbow Dash perked her ears.

“... sometimes.” Twilight said before she even knew it. “This is ... nice, but honestly if I spent every night like this I don't know how I'd function.” She stretched out a little, draping an arm across Rainbow Dash's shoulders. “This has gotta be the first time I've woken up more tired than when I went to sleep.”

“Alright, alright. We'll take it easy the night after tomorrow.” Rainbow Dash said.

“The night after tomorrow?” Twilight blinked. “Why then?”

“'cause there's one more pony who's head we've gotta look in before we take a break.”

“Whose?” Twilight said.

Rainbow Dash just grinned, and reached past Twilight to run her hand over Luna's flank.

“Hers!”