There's a WHATquestria?!

Twilight sat contentedly at the Map, her eyes closed, smiling sleepily out at her friends, gently stroking her shiny new swordstaff like a mastermind's pet cat. "Girls, and Spike," she began, "I would like to express my deepest condolences for what you've all gone through as a result of the Great Switchaboob."

"Th' great wut," Applejack blinked.

"Roll with it, Applejack," Rarity hushed her.

"While I admit I may have lost my temper a few times, in hindsight, it was really quite funny," Starlight grinned. "By the way, have you considered putting a heating spell on the floor?"

"A great idea, I'll write that down at once," Twilight agreed, magically lifting a notepad and quill to record it without opening her eyes. Fluttershy and Pinkie sighed in relief.

"While I was in the other world," Twilight announced, "I was overwhelmed by the constant, constant presence of, and forefront thinking about," she spread her hooves out wide, "... enormous boobs."

Fluttershy was already hiding her face.

"Most of the males in that world, while otherwise identical to our familiar friends, were... overstimulated, and very aware of it. Big Macintosh and Spike were particularly stressed by the unique magics of the land to the point they were unable to function in society."

"... You mean they were always jackin' off," Rainbow Dash wrinkled her nose.

"Really, Rainbow Dash, must you be so blunt!" Rarity scolded, hugging the red-faced little dragon.

Twilight nodded. "Vulgar, but accurate. But my point is!" She slapped the table, then paled, her eyes opening, and looked down. She sighed with relief and relaxed. "And I don't intend to dwell too long on this, because I know you girls are really bashful about this... Fluttershy. Pinkie. And you too, Rarity."

"Oh no," Fluttershy mumbled.

"Yeah," Pinkie responded, blushing and looking away.

"M-muh-muh-meeee?!" Rarity blushed. She squeezed her eyes shut and hugged Spike a little closer, hiding the lower half of her face.

"I have so much appreciation for you girls," Twilight put her hooves together, "And I'm so sorry if I've ever made you self-conscious or dare I say ashamed about your bodies, or especially - and I mean especially - if I have ever, directly or indirectly, inflicted even one-tenth of the agony onto your boobs as I went through within just a few days as Titty Twilight. And, if I may be so bold," Twilight crooned, "Please share with us your stories of boob pain."

The girls glanced at one another and looked away awkwardly.

Pinkie inhaled slowly and sighed. "Do you all remember," she began listlessly with her eyes closed, "When I tried to do a somersault over a carriage but I landed on the carriage."

"Yep, mm-hmm," came the chorus.

"Do you remember the incredibly loud wham sound and the dent I put in the carriage roof," Pinkie continued.

A few ponies cleared their throats.

"My balloons made that sound and that dent," Pinkie admitted in a morose tone. "Which is why I yelled really, really loud and then passed out. I know I made it look like I was acting. But no, that was legit. That hurt like hecksies. I died from that pain. I'm a zombie now."

"I remember, about a, a moon or two before Twilight came to Ponyville," Rainbow Dash mumbled, fidgeting with her hooves. "Applejack 'n' I," she gestured to the freckled mare, whose eyes darted around in thought before she nodded in recognition, "We were supposed to hold a young tree down while Fluttershy... uh, I don't remember what she was doing up there." Dash scratched her head. "But one of us slipped, probably me, and the tree flipped back up, got her right in the jugs and she dropped onto the ground and wailed. I thought we'd killed her, we got the doctor, doctor laughed and said she'd be fine... I swear her boobs turned red, blue, and black for like a week."

"Eep," Fluttershy winced and shuddered, remembering.

There was a pause before Rarity sighed. "Oh, very well," she conceded, blushing. "First off, I've had a few accidents in my work, pricked myself with a needle in every possible place - yes, even there." Everyone at the table jumped and shifted uncomfortably. "But on a more concussive note, when Sweetie Belle was very young - and I was still mid-bloom myself, mind you - I took her out to the park and attempted to teach her how to use a see-saw. And well, she saw, quite fit, to hop on the one side before I was quite ready, and ram the other directly into my undercarriage..!"

"Thank you, girls. Now allow me to share with you my story that may put all of yours to shame," Twilight shuddered.

And so she told them how Mistress Mare-velous kicked her in the boobs.

It took a second for it to sink in. "Mistress Mare-v'lous kicked you in th'..." Applejack blanched.

"Yeah," Twilight urped. Thinking about it gave her phantom pains and made her nauseous.

"Mistress Mare-velous can kick through three hands of concrete," Rainbow Dash pointed out in a dead voice. "She makes Applejack look like Sweetie Belle."

"Mm-hmm," Twilight nodded. "Did you know that alicorns - which are called 'cowlicorns' in Tittyquestria - have extra-sensitive udders?"

"Yer one of those," Applejack reminded everyone, doffing her hat.

"As is Titty Twilight, of course. And to top it all off," Twilight grimaced, "Just as my Element of Magic allows me to tap into all of your Elements, Titty Twilight's body continued to tap into all of the Elements of Titty. Fluttershy's is Tenderness."

The girls all made the sign of the sun, looking miles away with pale faces.

"Fortunately, I also benefited from Applejack's Element, Heft, a.k.a. Boobs of Iron," Twilight sighed. "So I wasn't seriously injured. But Applejack doesn't have Tenderness. I did. So where Applejack would've groaned and taken one or two seconds to recover, I shrieked, fell to the ground clutching my boobs and writhing, and was a crippled, puking, screaming mess on the floor for - I am told - ten or fifteen minutes. Fortunately, this convinced them that I couldn't have been designed with fighting them in mind."

"Ol' Mare-velous musta been real sorry," Applejack hiccuped.

"Oh, she was mortified," Twilight grimaced. "All set to hang up her outfit, just like you. They were so sweet to me when I got through to them, though. And it is my deepest hope that none of you girls ever experience anything close to the exquisite, brain-destroying agony that is getting kicked in your magically-enhanced super-tits by a super-mare." She inhaled and sighed.

"Thanks," Dash mumbled uncomfortably.

"Obliged," Applejack added.

"No kidding," Starlight added.

"Mm-hmm," Rarity clucked.

Fluttershy and Pinkie merely nodded.

Then Twilight leapt up and slammed the table. "But one more thing!" She brandished her sword-staff at all of them like she was casting a hex.

The girls and Spike jumped, staring at her in a sudden panic.

"This came up in Tittyquestria and none of you will be leaving until I am satisfied with your answer." Twilight looked them all over for signs of weakness.

Since none of them knew what the question was, they stared at her fearfully.

She breathed in.

She breathed out.

She drew the sword about halfway out of the staff.

"I need to know if any of you Applejack have fuffed Spike."