Summary: In Madrid, Duchess and Thomas discover a magic potion inside a store, which results in them becoming large and cause destruction in the process. Will Marie, Toulouse and Berlioz find a way to shrink their mother and Thomas back to their normal sizes?

"Phew... I gotta tell you, Duchess. Getting all the way from Paris to France took us a little more than four hours." Thomas tells Duchess as they stroll through the streets of Madrid during their romantic night out in the city, along with Duchess' children. "But nevertheless, we've made it and now we get to have some time together, me and you."

Duchess giggles a bit, replying to Thomas as she flirts with him, "Why, Thomas, you do say some of the funniest things! I'm sure Marie, Toulouse and Berlioz would be so happy to see the love we share with each other!"

"Hey, mother! Have you bought anything for your special someone?" Marie asks her mother, wondering if her mother has gotten something for Thomas that he would like.

"Not yet, Marie. I promise me and Thomas will find something to satisfy the two of us..." Duchess acted flirty towards Thomas again, kissing him in the cheeks, causing him to feel flattered and slightly embarrassed nervously.

"Madrid is nothing like Paris at all! I do wish to learn more about this place!" Toulouse pays his attention towards to Berlioz, wanting a little chit chat for a moment.

"Yeah, it's clearly different once you get to know much more in this city!" Berlioz replies with a nice smile on his face. He added things further, saying, "Although I do love Paris the most, I will never forget about coming to this place! It is worth it!"

Duchess, Thomas and Marie look at Toulouse and Berlioz, who are bringing the three the attention of the conversation the two are having. They've listened closely to what they are saying.

"Berlioz? Toulouse? What are you two boys talking about?" Duchess asks.

"Oh, we're talking about Madrid!" Berlioz explains to Duchess about the conversation he and Toulouse are discussing about. "We said we won't forget about going to this place for the first time in our lives!"

Duchess, Thomas and Marie giggle, happy that they will still remember about visiting Madrid, too.

As the five cats keep walking through the sidewalk, Duchess looks up at a mansion in front of her and the others. Duchess begins feeling excited about the place.

She and Thomas O'Malley run into the mansion and see whatever they could find in it.

"Hey, mother. Where are you going?" Marie asks Duchess.

"Oh, we'll be right back and will get something from this mansion!" Thomas respond while he and Duchess head for the mansion. "Stay here while we look for something in this mansion!"

A few minutes later, on the very bottom floor, Duchess and Thomas O'Malley discover strange potions on a table. Thomas and Duchess get a closer look at the potions standing on the small table.

Thomas begins reading it, which was read in Spanish: "Esto poción no es supuesto para que cualquiera lo beba, como puede conducir a algo peligroso alguien que lo beba."

Duchess curiously asks Thomas about one of the two potions, written in Spanish language, "What does it mean?"

When asked, Thomas replies and starts reading what it says on the potion, "This potion is not meant for just anyone to drink, as it could lead to something dangerous for whoever drinks it."

"I don't see anything wrong with drinking this potion." Duchess says, not feeling offended about drinking the potions appearing before her. She then looks another potion next to it, which also says the same note as the one Thomas was reading seconds ago. "I think we should try drinking them and see for ourselves on what effect it will have on us."

"You sure?" Thomas asks with a nervous face.

"Sure, I'm sure."Duchess responds as she carefully picks up the potion with her paws.

She starts to drink the potion as Thomas watches her drink all of it up until it's empty. He was surprised! He does the same thing, drinking the potion he was holding, with Duchess watching nearby in happiness.

The potions that Duchess and Thomas O'Malley have had just now made them feel strange, unsure what is about to happen to them next.

"Man, something's weird going on... What's happening to us, Thomas?" Duchess wondered.

Before Thomas could reply, he and Duchess begin to experience themselves growing unexpectedly fast! They grew so much, it resulted in the both of them outgrowing the mansion and eventually destroying it in the process! Marie, Berlioz and Toulouse react in surprise and shock upon seeing how enormous Duchess and Thomas are at the sizes they are now.

"Those potions made us bigger?!" Thomas asks with a confused expression. He looks at Duchess, who also has grown immensely in size. Their sizes were almost enough to make their heads hit the grey clouds above them.

"It certainly appears to be the case, Thomas." Duchess replies, raising her front right paw us while seated. "I didn't expect that this was gonna happen."

"Mom! Are you alright?" Marie asks Duchess as she, Toulouse and Berlioz run up to them to make sure they aren't hurt.

Duchess, smiling and looking down at her now tiny children, responds as she chuckles, "Oh, me and Thomas are fine! We just drank some potions inside a mansion and started growing inside, and then, the mansion got destroyed because of our increased growth!"

"Um, I'm worried about you, mother..." Toulouse nervously tells his mother.

"They're gonna destroy probably everything if they don't return to normal! This is not good!" Berlioz tells Duchess, who understood him clearly and what he told her.

"I wish me and Thomas can stay, my little ones, but I think me and Thomas should have some fun through this city in order to satisfy ourselves!" Duchess tells her children as she gets up on four paws again, now feeling in a mood to start stomping through Madrid, alongside her lover, Thomas. "I guess we better get going, Thomas. There's so much to explore at this size!" She tells Thomas.

Duchess and Thomas commence and stomp through the city, causing the ground to feel the tremors coming from every step the giant cat couple took, and it grew louder and louder! They stomp past Marie, Toulouse and Berlioz, leaving behind the massive paw-shaped prints left on the ground, along with the destroyed the mansion.

"What's about to happen our mother?" Berlioz asks Marie, feeling more worried about Duchess at this point. "She's so huge, she and Thomas would almost smash everything in this city with their paws!"

"I'm not sure what we can do, but we better stay out of their way." Marie says as she watches her colossal-sized mother and colossal-sized Thomas stomp through Madrid as they walk together.

Minutes later, elsewhere in the city, Duchess and Thomas continue their massive stroll, damaging building, some they have stomped on without even noticing them under their paws. The humans in the streets have panicked and flee from the giant cat couple who were crushing and destroying anything in their path.

The loud, thunderous, booming sounds from the two massive-sized cats' steps shook the ground violently. Car alarms had went off, though Duchess and Thomas stomped on some vehicles below them as well.

"Oh, my, this really is fun!" Duchess giggles while she continues stomping through Madrid alongside Thomas. "Guess now our love means big fun and destruction, doesn't it?"

"That is the point. Once you're a huge cat towering over everything, you just gotta stomp through a city and make some big mess all over the place!" Thomas replies, feeling happy that he is enjoying the time as a very gigantic cat.

"I do hear the little humans screaming from down below... And they don't seem happy with us, either." Duchess realizes that she is hearing the fleeing crowd from down below.

"We can't really help ourselves, we're too big and powerful!" Thomas replies as he stomps on some more structures and buildings, flattening or knocking them over. He looked amazed with how strong he is now compared to his size from before.

Duchess lets out a sigh and decides to sit down so she can relax herself for a time. Her rump and tail came crashing down on the buildings below her, destroying them in the process.

"Talk about a beautiful night to just share our love and have some fun by destroying stuff and satisfy ourselves once more." Duchess says to Thomas, who laughs at what she just said about destroying stuff, which she meant the buildings and vehicles all over the city.

Thomas, who went slightly ahead of Duchess, replied, "You know, it all makes sense now. Having romance and growth that results in us being giants really makes me think we should kiss now before we move on and recommence our stroll across this city! This city's like a playground to us now!"

"Silly you, you do say the funniest things." Duchess says while she flirts with Thomas directly in the eyes yet again.

"Well, I suppose we should kiss now instead of tomorrow. It's a waste of time." Thomas suggests he and his love interest kiss each other like she has wanted him to do minutes ago.

Duchess agrees and stands on her four legs again. She walks closer towards the orange cat with every step felt in the tremors, bouncing things near and closer to her. As Duchess and Thomas get closer towards each other, they kiss directly in the mouth, repeating the kiss two more times. Once they were finished, they have felt their love growing even stronger from all the kiss just right now.

Before the two giant cats continue their walk and path of destruction, Duchess spotted the Cibeles Palace nearby, which caught her attention quickly. She starts approaching the building, with Thomas following behind her.

Though the cats were very enormous in size, they were still able to fit the streets with some room at least. The humans did the best they could not to get stomped on as the the two gigantic cats keep coming closer and closer with every step vibrating the ground as if an earthquake occurred. When they reached the palace, their shadows loomed over the entire buildings. Duchess stood in front of it, while Thomas stood next to the buildings.

Duchess leaned down and attempted to reach her huge paw through the door in the Palace.

"Hey, be careful" You could destroy the whole thing if you keep moving your paw from one spot to the next spot!" Thomas warned Duchess that she may end up destroying the place in case her paw moved another direction.

But just as Duchess reached the front door of the palace, her paw shattered the glass, damaging it.

"Oops, guess I messed up the door and that's not really good, is it?" Duchess said as she pulled her paw out of the door and look nervously at the damage she caused towards the palace.

"We better get moving! I really hope we can pay later for the damage we've caused." Thomas said, beginning to walk with every step, walking past Duchess slightly as he left the paw prints on the streets.

Duchess followed behind Thomas once again and she continued to stomp her way through the city, leaving behind the unexpected huge destruction she and Thomas have left behind them, though they really had no time to apologize.

While they walk straightforward through the streets, Marie, Toulouse and Berlioz arrive to the scenario as they witness the destruction their mother has caused. They watch as Duchess and Thomas stomp past them, leaving huge paw prints near the small kitten.

"Whoa! Look at all the things they had destroyed! It looks really bad, boys." Marie tells Toulouse and Berlioz with a nervous and worried expression, shivering a little.

"I don't think we can stop them. They're too powerful." Berlioz replies, finding no proof that he and his siblings can stop their titanic-sized mother, along with Thomas, who's also titanic-sized.

"Yeah, no kidding. Those two definitely are having some big fun destroying stuff while having their romance this time at night." Toulouse says as he looks at the enormous cat couple, looking at their huge rump and tail as they stroll through the city, destroying and damaging things along the way.

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