There's a WHATquestria?!

A purple sky gently cradled the busy streets of Ponyville in its all-encompassing bosom. Gentle chatter murmured through the town like a bubbling river. Orange lights contrasted the hues of the night and made the entire city seem cozy and warm despite the cool night air.

Walking along on this joyous night, Twilight didn't know what was worse.

Maybe the countless pairs of big ol' boobs, painted like pumpkins, some like jack-o-lanterns, a few wisemares had watermelons or other fruits, all swinging and swaying giddily along the roads, hanging and jiggling candidly at the stalls.

Maybe the fact Rarity had insisted on, alongside a criminally adorable witch outfit, similarly painting Twilight's stupid jumbo jubblies, which were cemented near the forefront of her mind by the bite of the aforementioned cool night air. I am so naked, she blushed. I've never felt such a strong breeze on my boobs before and it's not even windy tonight.

Or maybe the fact she could feel Spike's rock-hard cock throbbing against her back, emphasized by his dedicated complete silence other than labored breathing. She could even feel his swelling knot, and the fur between her wings was quickly matting from moisture even through the fabric of her bodice. No, she figured it out, that was the worst part. Being informed of the disproportionate warmth of dragon genitals and dragon pre-ejaculate courtesy of the horndog (more so at least) doppelganger of her adoptive younger brother who may or may not have wanted to cram that monster in her super bad made her incredibly uncomfortable. She'd probably never be able to accept her own Spike on her back ever again, the big balls were embarrassing enough. Maybe she should have a saddle. That would give these vapid harlots in Tittyquestria completely the wrong idea, but it might be acceptable in the pony world that wasn't crazy.

Was less crazy.

"Wow, Princess Twilight!" Lyra called, passing by alongside Bon Bon. "Your hooters look amazing tonight!" Upon their large, pumpkin-y tatas were clumsily written, respectively, SHE'S MY TREAT 🡆 and 🡄 SHE'S MY TRICK, distorted considerably by the curvature and independent sway of each breast.

Twilight grimaced, her ears low in embarrassment. "Thanks-you-girls-too."

"Aaah!" Lyra squealed in delight. "She likes our boobs!! We have royally-sanctioned boobs!!"

I should royally condemn this entire daffodilling universe, Twilight thought to herself.

"Ponies of Ponyville!" came a familiar, low call from the plaza. "Bow down and worship the twin moons of thy goddess! Mine udders are eternal, and so too shall be the night! Come hither and be awed!"

Twilight's face paled as she realized what was going on. "Spike," she cleared her throat and asked to him. "What is the name of Luna's evil alterego in this world?"

"Nightmare Boob," Spike answered at once.

"I was afraid you'd say that," Twilight sighed. "And please don't thrust against my back."

"C-could you just drop me off in a bush somewhere, actually..."

"Oh? And who be this who standeth before us, her sizeable but inferior udders proudly displayed in defiance of our own?!"

Twilight, now free of Spike, jumped and looked both ways, realizing the crowd was turning to her. She turned beet red as everyone went silent, lowering her head and looking up at the speaker.

That was Nightmare Moon alright... a regular-Luna-sized one, anyway. There were some minor differences - she lacked the ridiculous glowing eyelashes, and she wasn't quite so bald, as Luna's more opaque mane flowed out from the gaps of the helm. Twilight glanced down at the enormous black udders. Oh right, Nightmare Boob, not Moon. One less thing for Luna to be jealous of, she wrinkled her nose. I wonder if she can take a kick like Applejack can.

"Might this be," Nightmare Boob crooned, "... the champion of the light herself, the hub of all that is motherly, the Bearer of Undercarriage?!"

Bearer of what?! Twilight stared at her in shock. Though, to be fair, it was literally true.

"... Twilight," Luna hissed to her in her regular whisper, "Please, just play along, say something heroic! Maybe we will wrestle a bit."

Wrestle?! With these?!

But that's right, she'd read about the Elements of Titty in Titty Twilight's stupid titty-library. Each of the Elements was... different, here. Instead of Magic, Generosity, Honesty, Cheer, Kindness, and Loyalty... uh, what were they again?

"YoUuU..!" Twilight stopped at her voice crack and cleared her throat. "You've made a terrible mistake showing your... face and other things, Nightmare Boob! You, uh, failed to, er, disarm us of the, uh, sacred and loving charms of Titty!"

"Impossible!" Nightmare Boob stomped. Wobble, wobble. "I hath destroyed the Elements! Without your sexy jewelry and lacy cloth emphasizing your heavy swingers, you are nothing!"

"That's were, we, where you're wrong!" Twilight improvised awkwardly. She could see Luna's face straining at her poor performance and the other five girls waiting patiently for her to summon them over. "The, uh, true power of, uh, titty is from within! Within your, uh,"

"Tempered spine," Pinkie whispered loudly.

"Within your tempered spine!" Twilight shouted, then double-took her. "Is that right..?" she whispered, then rolled her eyes and returned to shouting. "It is a sacred power that can't be removed! Titty is a beautiful thing shared between ponies who love one another and happen to have such anatomical features and the appropriate inclinations!"

"Is that so," Nightmare Boob dismissed. "Show me then, Twilight Sparkle, o Princess of Undercarriage!"

I think that title better fits your sister, Twilight silently objected. And I wasn't a princess when I fought Nightmare Moon, but I guess the story has to be doctored a bit for modern times...

"Show us this power you claim to possess!" Nightmare Boob lifted her chin and waited patiently.

Twilight glanced back and forth. "Oh, uh, yes! With gusto! A whole lot of gusto!" She paused. "Uh, the uh, the aspects that bring ponies together - the female ones anyway - are uh."

Moonshine, what were they again? She began to sweat. What order do they go in? Is there an order? I know I need to name mine last or it won't be cool. I'll just name them in whatever order I remember the awful, awful things.

"Perk!" she suddenly shouted, raising a hoof. Even Luna jumped at her exclamation.

She paused. "... Peeeerk?" she called again.

"Snrrk-hr-wha-huh? Oh!" Rainbow Dash snorted awake and leapt to her side, drawing herself up to her full, shorter-than-everyone-else-height. Her expression was strange, and Twilight realized that her tits were too big for her small body - her perky nipples indeed scraped against the ground whenever she landed. Twilight winced in sympathy.

"Uh," Twilight's eyes darted around. "... Heft!" she cried next.

She almost stumbled as Applejack galloped over. Twilight stared bug-eyed at her obscenely-swinging udders. Applejack skidded to a halt, her tits slapping heavily against her thighs, drew herself up with one hoof raised, and smacked herself on the tit, her confident smirk never faltering. Boobs of iron, Twilight blinked fearfully.

She shook her head. "Tenderness!" Twilight yelled next. The exact opposite of Applejack, clearly. After a few seconds, she looked around and jumped as Fluttershy had silently come to her side. If hers are more tender than mine the poor thing must live in torture, she sympathized.

"Um, uh... bounce..?" she said uncertainly. "Yeah, that must be one. Bounce!" she swirled a hoof in the air impatiently, as she was already done with this shine.

"Yippie-yahoozies!" Pinkie cried, somersaulting over. Twilight watched her tits swinging every which way like big wobbly nunchuks in slow-motion and realized Pinkie's body moved with her tits, avoiding any sudden jerks. They never even slapped together. Twilight realized with horror that this Pinkie and her Pinkie were not any different from each other. Pinkie is a titty-ninja in every world, she accepted. Even the human world's Pinkie.

Twilight suddenly realized she'd completely forgotten what Titty Rarity's Element was. "Girls," she rasped. "What's Rarity's Element again."

"Smothering," they all whispered back at once.

It kerfuffling would be, the lash-batting gold-digger, Twilight condemned.

"Smothering," she deadpanned, not even lifting a hoof this time. In the corner of her eye she saw Rarity widen her eyes in surprise, then strut over with a pout, clearly slighted by being so casually presented.

Twilight paused and began audibly counting heads. "Right, okay," she finished and then raised her voice. "And of course, myself, the hub that combines these sultry traits together. The Element..." She charged her horn. I really hope Titty Twilight's magic doesn't screw up this simple light show spell.

She generated a completely harmless rainbow, scripted to spiral up, helix back down, and plop onto Luna's head, scattering apart like fireworks. To make sure it looked legitimate, she reached out and borrowed a bit - just a bit! - of the girls' essences, combining them with their own. Just enough so it would look like the real rainbow they really fried people with. Luna might feel a slight bop on the noggin but it should be fine.

"... of Undercarriage!!" she said much more proudly than she felt, firing it off.

A cartoonish bwoowoowoow and the sound of a cutesy woman giggling reverberated through the night sky as an incredibly unwelcome, extremely sexual warmth overwhelmed her breasts. The light that blasted into the sky wasn't neat, clean, and solid, like it would be in her world. It was watery and blurred, the colors mashing together, like watercolor.

Twilight's eyes widened in horror. Or like --

"Got milk, bitch?!" Rainbow Dash screamed rather inappropriately, but very Rainbow Dash-ly, as the sacrilegious excuse of a rainbow - a milkbow - fell onto Luna's head and exploded.

As rainbow-colored milk fell all over Ponyville like rain, Luna thrashed and bellowed, her armor popping off with the distinct sound of mechanical springs being triggered, until she was once again nude. She quickly adjusted her helmet-hair with magic to look more presentable, though still disheveled, and magically painted some fake bruises onto herself.

"Oh, woe is me!" Luna called in the rain. "I have seen the error of mine ways. The true beauty of the boob, that I had perverted..!"

You're damn right it's perverted! God-mom's twin suns! Twilight screamed in her head, a vein twitching just over her left eye. My beautiful rainbow! The loving, gentle rainbow of friendship that burns away evil and returns broken, abused creatures to the light! And you kerfuffling sluts have turned it into LEWD TITTY-JUICE!

"But though the dark took me, now the light has come for me," Luna pontificated, gesturing illustriously with her hooves. "And though I fear I am not worthy, I shall return to thee, if you would have me, and grant me thy milky forgiveness." She sank down, her eyes closed.

"Yeah sure," Twilight said too quickly, nodding. "Do you wanna, uh, head inside and talk this out over some tea? It's a bit of a downpour out here."

Luna blinked her eyes open, glaring at her, then sighed and returned to her downcast expression. "We shall sit together as bosom buddies, Twilight Sparkle... I thank thee..."

The crowd cheered.