“So what is this whole party actually about, Pinkie?” Twilight frowned as she looked around the room, trying to find any clue from the decorations scattered about. There were some looping streamers, some sparkly confetti, a few party games and snacks, and of course her friends already mingling. Nothing that gave her any specific vibe beyond being a normal Pinkie party, though. The only potential hint was Pinkie’s outfit, the mare wearing a big fancy cape and a top hat that somepony might have mistaken for being her Nightmare Night costume if Twilight hadn’t seen her actual costume the night before.

Pinkie happily twirled her cape and giggled. “Oh, didn’t I already tell you? I could’ve sworn I wrote it on the invitations!”

“You wrote that it’s a ‘Hypnovember’ party… but none of us know what that actually means.” Twilight looked around the rest of her friends just to be sure, but only got shrugs and headshakes in return.

“Really? But it’s so obvious! It’s the first day of Hypnovember! It’s a November that’s a whole month all about hypnosis~” Pinkie giggled again.

Twilight blinked, then snorted and shook her head at her friend. “Well, that’s… kind of an explanation, I guess. But that still doesn’t really tell me why anypony would want or need a month like that. You know that ‘hypnosis’ is just a pretend thing they do in comic books and stage shows, right? It’s not actually real, Pinkie.”

“Sure it is! Hypnosis is super duper totally real!”

“It really isn’t.” Twilight sighed and turned her attention to the snack table, spotting a box of cereal that looked rather good after all the candy from the previous day. “Trust me, Pinkie, I’ve read a lot of books and I can tell you for a fact that hypnosis doesn’t work.”

“I have to agree with Twilight.” Applejack piped up from where her and Rainbow Dash were playing one of the party games. “It doesn’t really seem credible. And even if it was, nobody here knows how to do it so I’m not entirely sure what the point of an entire party based around it would be.”

“Of course that would be silly!” Pinkie giggled again. “But it isn’t, because I totally know how to do it! In fact, I already hypnotized each of you before the party started!”

Fluttershy snorted. “Really? I think we’d notice if any of us were hypnotized.”

“That’s why I made you all not notice, silly!” Pinkie winked at her. “That’s half the fun of hypnosis, making you all forget that it happened in the first place~!”

“Well, that’s a logical fallacy.” Twilight rolled her eyes, moving past Pinkie to get to the cupboard and look for her favorite bowl. “You can’t just claim to have hypnotized us and then say we didn’t notice. You’re basing your entire argument on not having to make an argument.”

“I mean, it’s not like I need to prove anything. The important part is that I know about it.”

“But it’s not just about proof.” Twilight headed over to the snack table, setting down her bowl and picking up the cereal box in her magic. “Well, it kind of is, but it’s also about plausibility. What’s more likely, that you actually hypnotized all of us and none of us noticed, or that you’re just making up a story?”

“I for one don’t believe any of that.” She looked over to see Applejack turning her nose up with a huff. “Pretty pink princesses like me don’t listen to other ponies, and they certainly don’t get hypnotized. And my little Dashie here certainly won’t listen to anypony other than me either, will she?” The earth pony swished her dress imperiously as she turned to her maid.

“H-huh? Oh!” Rainbow Dash jumped nervously, looking up from where she’d been trying to figure out the best way to let her princess win the game they were playing. “Yes, Your Highness Princess Jaqueline! I-I mean, uhm, no Your Highness Princess Jaqueline.”

“Hmpf. You better not.” Applejack sniffed haughtily. “But now Pinkie Pie made me imagine that you might, so I think I should discipline you to make sure that doesn’t happen again.”

“Y-yes, Princess Jaqueline!” Rainbow Dash squeaked and shuffled forward to move in front of the other mare, bending over and lifting her skirt to present her ruffled panties.

Twilight watched as Applejack started to spank her blushing and moaning maid before turning her attention back to the original conversation. “Anyway, that’s two people already who aren’t buying your story. Your story doesn’t really have any leg to stand on… come to think of it, you haven’t even told us what we’re supposed to not be noticing.”

“You didn’t ask~” Pinkie hummed and giggled again. “Besides, you wouldn’t notice it anyway. I could’ve made you dress up and act completely different, but you wouldn’t be able to tell.”

“But that’s the fallacy again.” Looking over the snack table Twilight frowned and picked up her bowl again, walking around the table to her friend who hadn’t contributed to the discussion yet. “And besides, Applejack and Rainbow Dash could count as dressed up and maybe Rarity…” She looked over the dusty old work shorts and the cow-patterned sleeves the other unicorn was wearing. “But it certainly wouldn’t hold up for me or Fluttershy. Anyway, Rarity, do you mind if I…?”

“Ah ‘preciate you askin’, Twilight, but y’all know Ah’m always happy to provide.” Rarity chuckled, taking the bowl and holding it in front of herself while pushing her chest out. Twilight gave her a smile and a nod before grabbing her nipples and slowly starting to tug and squeeze. “Anyway, Ah don’t rightly know about all that brainy stuff, but Ah figger Ah’d know if somepony hypmootized me.” She moaned as Twilight started to fill the bowl up with milk. “Ah’m a simple down moo earth farmgal, if ya’d changed anything about mooooo Ah’m purty sure I’d mooooootice.” She shuddered and bucked her hips at the last big squeeze, blushing and breathing heavily.

“Exactly. I think everyone here would notice if anything major changed about any of us, no matter what you claim. If not for ourselves, then for each other. And we’re all in agreement on that, right Fluttershy?” Twilight let go of Rarity’s tits and took her bowl back, then paused as everypony turned their heads towards the last member of their group.

“Hmm? Of course I don’t think I’m fucking hypnotized or whatever.” Fluttershy rolled her eyes, one hand groping her chest while the other ran back and forth over her large pink strap-on. “I mean, like, not that it doesn’t sound fucking hot and if somepony paid enough I’d totally pretend and stuff. But there’s, like, no fucking way Pinkie or anypony could make me think about anything other than sex.” She moaned and bucked her hips, thrusting her strap-on forward as she came.

“Thank you, Fluttershy. And there you have it, Pinkie.” Twilight moved back over to Pinkie, setting the bowl with her name on it down on the floor and going on her hands and knees in front of it. “None of us believe that you somehow hypnotized us, and you haven’t done anything to convince us. I’m sorry, but if you were hoping for some kind of theme for the party then I’m afraid this one is a bust.” She shook her head before leaning in, burying her face in the bowl to chow down on her cereal.

“I guess you’re right, Twilight. Just goes to show what a smart puppy you are.” Pinkie giggled and bent down to ruffle Twilight’s mane.

Twilight shuddered and moaned, leaning into the pets and shaking her… She paused and pulled her face out of the bowl, milk dripping down her chin as she wiggled her butt in confusion before gasping. “What…? Oh no! Pinkie, have you seen my tail? I can’t believe I lost it!”

“Oops, we can’t have that, can we?” Pinkie giggled and reached into her cape, pulling out a purple plug with long, stiff strands of purple and pink hair coming out of the back. “Every good puppy needs her tail~”

“Y-yeah, every good puppy needs…” Twilight pushed her butt up in the air for Pinkie, gasping and moaning as her friend pushed the plug in nice and deep. “Ohhhhhh~!”

“There we go, nice and snug.” Pinkie grinned and ruffled Twilight’s hair again before moving her hand to give her light scratches behind the ear. “Who’s a good girl~? Who’s a good good girl, Twily~?”

“M-meeeeee~!” Twilight shuddered and panted, letting her tongue hang out as the scritches made her head all fuzzy and letting out another moan when her tail started to ~~vibrate~~ wag. “Twily’s a good girl~!”

“Yes you are, yes you are. Such a good girl, Twily~” Pinkie petted and scritched for a moment longer before pulling away again. “And good girls get treats~!”

Twilight blinked and turned around a bit clumsily, knocking the mostly empty bowl to the side. She gasped happily when she saw Pinkie sit down on a chair and spread her legs, panting and drooling as she eagerly crawled forward for her treat.

“Good girl, Twily.” Pinkie moaned and put her hand on Twilight’s head to start petting and scritching again, lightly pushing her forward. “How about once you’re done you cast that spell I asked you about and we can go outside for walkies.”

Twilight shivered and drooled, not sure what spell Pinkie was talking about as her head got all fuzzy again, but she did know that loved walkies and that she wanted to make Pinkie happy. How silly of Pinkie to try to convince her that she was hypnotized when Twily was a good girl who loved doing anything Pinkie told her anyway. Twily giggled at the thought before it got all fuzzy and faded under the scritches from her owner, leaving her completely focused on dragging her tongue over her treat and being a very good girl.

Author's Note

Starting off strong with Day 1.

Day 2 is already done as well since I got inspired and wrote that one last week (it's a full 4k words long and hopefully an outlier).
Day 3 onward are still in Celestia's hooves. Remember that comments feed the author, especially for a daily prompt thing like this.