Summary: Fleur-de-Lis once again drinks another potion that makes her enormous, but this time, Twilight and the gang get involved and caught in the middle of her unexpected destruction. Will Twilight be able to shrink this massive unicorn back down to her normal size? Or is this unicorn too powerful for the Mane Six to deal with?

In a city at dawn in the real world, the happy life with its residents was such a normal, lovely one. All around the entire city was that the humans have to work, spend time with families and friends, among other everyday situations.

However, one unicorn pony, who has pink mane and tail, purple eyes and a white coat with a slender body build, was silently strolling through the city with a smile on her faces. As some humans start knowing her appearance, she was questioned for her attractive personality. She replies stating that she is someone's most beautiful mare from Canterlot.

The unicorn mare, known as Fleur-de-Lis, goes inside a building hoping to get her hooves on something once she pays for it.

In one of the buildings, Fleur talks with the unnamed female shop owner, who sells lots of potions. She welcomes the unicorn into her potion shop upon opening the door. Fleur-de-Lis pulls out her bag filled with money inside.

"Why, it is unusual to see such a horse inside my shop." The shop owner laughs, surprised she is meeting a horse with a horn for the first time. "Perhaps you are buying some of my potions?"

"Yes, a potion that is drinkable and tasty... I'm fondly obsessed with potions, and I just can't wait to try one that is drinkable and something that I can be satisfied with." Fleur-de-Lis tells the shop owner.

The shop owner understands the unicorn's words, and she looks at the potions behind her and see which ones are drinkable and which ones aren't. She looks for the ones which are worth drinking, and, upon grabbing a potion that has the flavor of strawberry, shows it to the unicorn, which she is okay with. The shop owner asks the unicorn for ten dollars, which the unicorn agrees.

Fleur-de-Lis levitates ten dollars from her bag and gives it to the shop owner. Showing kindness to the unicorn, the shop owner gives the cherry potion to the unicorn.

"Be careful drinking this one, ma'am. Because this one might have a strange effect that you might not know of until you drink it." The shop owner warns Fleur-de-Lis that, when drinking the cherry potion, may lead to unexpected results. "Enjoy the rest of your time, okay?"

"Don't worry, I will!" Fleur-de-Lis responds as she waves goodbye to the shop owner while levitating the potion, placing it in the bag for safety.

Back outside, Fleur-de-Lis was happy with the potion she bought from the potion shop, and having been told to be careful when drinking it, she wonders what the shop owner meant about the strange effect it can have on her.

"I still gotta figure out what strange effect the woman was telling me that I'm not fully aware of." Fleur-de-Lis says to herself with confusion. "I know it's a cherry potion, but what effect does it have? Will it make me shrink? Will it make me grow? Will it grant me more powers? Guess I better find out for myself and see what this potion really does to me."

Now determined and confident to give it a try, Fleur-de-Lis pulls out the potion from the bag and looks at it first before drinking the potion. She then drinks all of it completely and there was nothing in it afterwards.

At first, it didn't seem like the potion did anything to the unicorn, but as the unicorn attempted to move her hooves, she felt something weird happening to her.

"What's going on? What's happening with my body?" Fleur-de-Lis feels herself growing in the middle of a city and continues to grow, her horn even reached past the tallest building in the city. It would turn out the potion Fleur drank was making her even more bigger, up to the point where she was the biggest in the city and even more larger and bigger in size when compared to the city itself.

Fleur-de-Lis was surprised and shocked seeing herself becoming a giant. The humans down below were smaller than her. They reacted in shock and fear as the giant unicorn mare was something threatening to them.

"Oh, my, god! It's a giant unicorn! Run! She's gonna stomp on us!" One man told the others with several humans in the crowd with him.

The tinies begin fleeing and panicking and run away from the massive-sized unicorn, already aware she will cause destruction due to her massive size.

"Hey, wait a minute!" Fleur-de-Lis futilely tried to stop the humans from running away from her, but they ignored her. "Oh, well, I guess I might as well stomp my way though this city and start destroying some stuff for fun! I really can't help myself now!" She lets out a sigh before she starts her walk, beginning to stomp on vehicles and buildings, even knocking over some buildings left and right along the way.

This unicorn, now massive in size and over 100 ft. tall, is becoming a danger to the city, and though she doesn't want to hurt anyone, but because of her massive size, she just can't help it. She was so big, anything could be flattened under her hooves in one blow.

Humans on the streets screamed as the enormous unicorn keep stomping through the streets while destroying cars and tramping and knocking over more buildings in her destruction.

Every step Fleur-de-Lis took resulted in the ground shaking extremely loud like thunder, causing every booming sound to occur each and every second. Everything around her was bouncing in one place and objects had fell to the floor and shattered, not even the people inside the building would be safe from this massive unicorn's destruction.

"I really can't stop myself from walking! This makes me feel unstoppable in every way!" Fleur-de-Lis says with excitement as she strolls through the city, feeling invincible to everything, meaning she is unable to be harmed by anything. Her powers have increased a lot to the maximum, and she was happy that she was the biggest pony there is, much to her surprise.

Elsewhere in the city, Twilight and her five friends, Pinkie Pie, Rainbow Dash, Applejack, Fluttershy, and Rarity are happily strolling through the streets.

"At this time of dawn, nothing says we can't enjoy a stroll together, right, everypony?" Twilight Sparkle asks her friends.

"It's always great spending time together walking through the streets, regarding what time of the day it currently is." Applejack replies with a proud expression, looking confident that she always loves walking through the city streets with her friends. "Definitely was fun having dinner together at a restaurant an hour ago. I was so happy to enjoy the food they had there."

"Next time we go out to eat somewhere in this real world, we need to find the ones that have donuts on the menu." Rainbow Dash said with disappointment that the restaurant they visited had no donuts.

"Cheer up, darling. There's always luck we'll visit a restaurant that features donuts." Rarity comforts Rainbow Dash, helping the latter feel more calm that it's not too late to visit a restaurant with the food Rainbow has mentioned. "I'm sure somewhere more further away in this city we will find a restaurant where we can enjoy donuts all together!"

The conversation between the six ponies was interrupted when they hear screaming from fleeing humans. The six ponies look confused about what was going on.

"What's all the commotion about?" Fluttershy wonders why the humans are running and panicking.

Before Fluttershy and the others could investigate, they heard steps from behind that forced them to stop moving. It grew even louder just seconds later, now sounding like an earthquake, though it was not the case.

When the ponies turn their head, they saw Fleur-de-Lis, who is giant in size towering over the buildings. She stomped her way through the streets, and as she approached her way straight towards the six ponies who appeared in front of her, her steps came closer and closer, and was almost about to stomp on them without even noticing them!

"Everypony, duck!" Pinkie Pie shouted, ordering the six ponies to jump out the way as Fleur's front left hoof almost came down. The six ponies narrowly escaped being stomped on by the giant unicorn. They watch in shock as the giant unicorn continues her destructive stroll.

"Oh, my goodness! She nearly stepped on us without even recognizing us in the first place!" Applejack told Twilight Sparkle, who was still seeing Fleur-de-Lis destroy and knock over cars and buildings in her path. "Just who is that pony anyway?"

"That's the marefriend of Fancy Pants! I didn't expect to see her this huge!" Rarity explains to Applejack about the mare who nearly trampled on them, alongside the other four ponies.

Though having a slender-type body with a concave belly, Fleur-de-Lis was still huge and powerful and was invincible to everything. Fleur-de-Lis just couldn't help herself except show happiness, destroying buildings in her path. However, she then used her magic to destroy some buildings in a blast.

Witnessing the giant unicorn's rampage all across the city, things started to become a nightmare for Twilight and her friends and also the residents living in the entire city, but for Fleur-de-Lis, it was more of a dream to her.

Determined, Twilight fires her magic at the giant unicorn who stomped past them. Her magic struck Fleur-de-Lis' back right hoof, which was raised up, only for it to backfire and prove futile against her.

"What?! Come on! She didn't shrink?!" Twilight Sparkle was shocked that her attempt at shrinking down the much larger Fleur-de-Lis didn't work at all. "Is she immune to shrinking whenever she's gigantic?"

"There seems to be something that's causing her to remain a giant, so it means that anything that would shrink her will not work, Twilight." Rainbow Dash realizes that Fleur-de-Lis is unable to shrink due to the potion she drank making her immune to everything that was to make her smaller again.

"Rainbow Dash, Fluttershy, Applejack, Pinkie Pie, Rarity! This is not good..." Twilight Sparkle says with a worried expression, knowing that Fleur-de-Lis may end up staying enormous forever.

Fleur-de-Lis stops for a moment while strolling, raising her front left hoof for a moment, feeling surprised a little, turning her head around. "I don't feel like anything can hurt me now, huh?" She thought to herself that she was absolutely indestructible. Unfortunately, she was completely right!

"I'm the biggest pony in the world, and I'm never gonna stop destroying things! Not ever!" Fleur adds things further, feeling happy, resuming her destruction, stomping on more buildings and cars.

"It's no use... We'll never shrink her because not one single thing can even shrink her back down to the size!" Rainbow Dash facepalms in disappoint that she and the others have no chance changing the uncontrollable giant unicorn back to the size she was before.

"That potion sure made be bigger and stronger! I'll be sure to stay this way forever!" Fleur-de-Lis giggles as she flattens more things in her destructive path.

Credits:
Vector is owned by Third Uncle
Background is owned by Sunny Young on Unsplash: https://unsplash.com/photos/a-view-.....et-cPwK8guAeWI

This is a sequel to my previous story featuring Fleur-de-Lis growing in a city. Feel to comment on this one.