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The night was well on its way, but light still poured from the windows of the Carousel Boutique where the curtains would allow. Inside, the ponyquines had been moved to the side in favor of a large circular table, encircled not by fashion but with excitedly-chatting mares. A silence fell, for just a moment, as Fluttershy snuck her snout through the door, her hesitation immediately interrupted by the magic of a rather eager Rarity. "Why darling, you've finally come! For a moment there, I thought you might've chosen to decline my invitation!"
"Welcome, Fluttershy, to the Dream Stallion Fanclub!" Rarity added with a gesture that was, perhaps, a little too grandiose for the modest cluster of mares.
"D-dream Stallion?" Fluttershy looked up at her friend with an expression of confusion, moments before being marehandled into one of the chairs.
"Why yes! The most wonderful stallion, visiting lonely mares in our very dreams to ensure our nights pass in a perfect (and sometimes perverse) passion! Why, when I heard of it through the grapevine, I couldn't bare the thought of such a... a hero going unappreciated! Why - girls, why don't you tell poor Fluttershy about him?"
"Oh! Well... three nights ago, he took me to a mountaintop in my dreams, and fed me cherries under the full moon before he..." Bon Bon's cheeks burned. "He was magnificent. I wish I could meet him in reality. See him for myself, maybe, you know..."
"Yes, he took us both to this exqueeeezit natural cave with a shimmering pool," Aloe ventured, Lotus rapidly bobbing her head in response. "Through a hole in ze cavern roof, the moon and stars shone in, light glittering off the waters as he loved us both. It was the best dream ever."
"Oh, he never visited me. I think he only meets with mares who have no stallions in their herd." Twilight Sparkle jumped in, "I'm just utterly fascinated with his mastery of Oneiromancy. Clearly his grasp of dream magic is only second to Luna herself. If I collate everypony's experiences, maybe I can find out who he really is and we can talk and hypothesize about dream magic all day! Can you imagine what I could learn from this unicorn?"
Rarity rested her foreleg over Fluttershy's withers. "And that's why I formed this club. Together, we exchange tales and spread the joyous news of the Dream Stallion to lonely mares all over Ponyville. Lonely mares like you, Fluttershy. But above all, we want the Dream Stallion to know he's appreciated, and that he should, above all, come into our dreams more often. Especially mine, since, alas, like poor Twilight Sparkle-"
"Hey!"
"- and, it seems, you, I have gone without. But not to worry, we have figured out a way to tell him what poor mare needs him most. Come with me, outside." Before Fluttershy had so much as gotten comfortable in her chair, she was dragged out again, and outside.
"This," Rarity announced, pointing at a boxy, wheeled structure just outside her home, "is the Dreamsignal." It only took a flash of magic to light it fully, sending a beam of luminescence cutting through the night-time sky to paint an image of light and shadow across the underside of the clouds.
Fluttershy's mouth fell open, "Is that a huge..?"
"Well, to be honest, we first wanted the image to represent pleasant dreams, but none of us could come up with a universally-understandable image that was simple enough to project. So, we decided to focus on the stallion part of his title, since he is quite definitely all stallion."
Fluttershy was quiet for a while, "I... hope none of the little ones are looking out of the window right now."
"Oh, don't worry, darling. They've all seen one at some point, right? And hopefully-" Rarity let out a little squeal of excitement, "- hopefully I'll get to see one tonight as well!"
The rest of the evening at the club meeting involved things most commonly found in clubs: Snacks, drinks, and talking about stallions. Well, one stallion in particular.
Oh, and Rarity offered to give Fluttershy the Dreamsignal next, after she had her turn.
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The night was black as pitch outside of the Carousel Boutique, no light poured from the windows, all was at rest but for the steady glow of the Dreamsignal, pouring its explicit representation of a stallion out across the clouds for all to see. A shadow moved, a shrouded mass sneakily slipping up to the target's home. A hoof reached out, and neatly popped open a window before the shape carefully forced its way through.
The cloaked and hooded pony carefully tread up the stairs, and into the bathroom, where it pulled out a slender hoof-mirror. A soft tearing sound announced a paper package torn asunder, its powdery contents poured across the mirror's surface before being nearly arranged into a duo of lines. A rolled up piece of paper made for a suitable funnel as the intruder quickly snorted up the mysterious powder-blue powder.
For several seconds, it listened, then set off. Doors opened quietly, and a shadow fell over the sleeping Rarity as the mysterious pony leaned in, and began to speak:
"Ah, Lady Rarity. You need not hide your wings from me, none but a princess could be a creature of such incredible beauty as thee. How could I not respond to your invitation to the gala with an eagerness only matched by my magnificent wealth and royal blood?"
The warm, manly voice rolled over Rarity's sleeping form...
...courtesy of the powdered poison joke working its magic on Fluttershy's voice.