That night, at Santalune Forest, two mismagius are flying in the air, floating creepily in the sky, smiling. When they kept flying, they stopped on their tracks and went through the forest, intending to find someone to trick them to capture them. They has hidden themselves in the bushes where they saw Calem, Serena, Shauna, Viola and Korrina battling with each other. The two trainers threw their pokeballs in the air and has sent Chespin and Fennekin while their rival has sent Froakie as well. They smiled with determination as they winked their eyes.
"Allright, Chespin! Time to do your best shot! Overgrow!" Calem ordered.
Chespin nodded as he used the overgrow move, which damaged Froakie in process as Viola and Korrina watched with awe. The spiny nut Pokémon smiled in satisfaction as Serena adjusted her hat, "Fennekin! Use blaze!" She shouted.
Fennekin used his ability and began launching fireballs at Froakie, much to Shauna's shock. Unwilling to give up, the female Pokémon Trainer brushed her hair and ordered Froakie to use torrent to damage Chespin and Fennekin. The Frog Pokémon used his ability and shot water at the two Pokémons, surprising them.
"Look at her go!" exclaimed Viola.
"That's right! Gotta skate on this!" said Korrina.
"We're not done yet! Go, Chespin!"
The Grass-type Pokémon nodded and used overgrow again and damaged Froakie even more before Fennekin jumped in the air and launched fireballs at the Frog Pokémon, damaging him even more and causing him to faint. Calem and Serena pumped their fist in excitement while Viola and Korrina cheered for them. Shauna was amused as she saw how fun the battle was, "That was fun, you guys! That was fun!"
"That was a wonderful battle, you know!"
"That was fantastic!"
"Yep, it is!" Calem stated, "How about we'll catch some wild Pokémon?"
"That's right, Calem!" Serena replied.
Viola happily threw her camera up and down as she catched it, "Everybody smile!" She shouted as the four trainers smiled, "Now that's a smile!"
"Isn't that exciting?" Shauna chuckled when suddenly, something creeped from the bushes, "What was that?"
"Nah...that was just a Fletching," Korrina has put her hands on her hips.
"No, no! There's gotta be something coming out of...this," Calem pointed to one of the bushes as he pulled out his Poké Ball, intending to capture something.
The five trainers, with their Poké Balls, looked determined when they found themselves ready to capture the creature coming from the bushes. They stood still when the creature revealed itself to two Mismagius, much to Calem and his friends' surprise.
"What the...? Oh, it's the Mismagius that we captured earlier! Along with another Mismagius!" He said, "What are they doing here in first place?"
"I was expecting for a fighting Pokémon to scare me and capture it, though," said Korrina.
"Mismagius..." said the first Mismagius.
"Mismagius..." said the second Mismagius.
"Actually, let's see if those two will make trouble. Poké Ball, go!" Shauna threw the Poké Ball at the two Mismagius, capturing them, "Cool! I caught them in double! They don't call me the girl of the Poké balls for nothing!"
"Nice one, Shauna!" Calem gave her a thumbs up.
"It's just fantastic!" exclaimed Viola.
When they all talked about how they captured them, the two Mismagius, inside the Poké Ball, looked around and wondered how they ended up being caught after creeping in the bushes. They looked at each other briefly and grinned mischievously before controlling the Poké Ball with their ghostly powers, shocking Calem and his friends.
"What's happening to the Poké Ball?" He asked.
"It is acting weird?" asked Serena.
"A Poké Ball acting strange? I never saw it before!"
The Poké Ball began bouncing around and around as the five trainers watched with shock. They were shocked as the Poké Ball opened itself revealing arms made of smoke, shocking them even more, "Two Arms?!" Calem gasped before seeing the ball grabbing hold on a branch, spinning faster as he watched it jumping higher into the sky and aimed at the young boy, "What are you doing?!" He said as the Poké Ball stretched its arms and grabbed Calem by closing its hands, suffocating him tightly.
"Calem!" Serena shouted.
"Let him go, Poké Ball!" Korrina threw a Poké Ball at the other Poké Ball, making it to scream in pain, "Oops," She smiled sheepishly.
"I...I can't breathe!" Calem struggled to breathe due to the hands squeezing and suffocating even more. He felt as he pulled himself out from the hands and freed himself from the Poké Ball with hands before falling into the ground. After he recovered from the fall, he opened his eyes and found himself left in his orange underwear.
"Calem, are you allright?" Serena helped him to get up before seeing his underwear, "Oh my Arceus! Where's your pants?"
"The Poké Ball stole it!" Calem replied as he saw his pants being swallowed by the Poké Ball.
The Poké Ball bounced left and right before seeing Korrina and stretched its arms in order to swallow her as well. She grabbed her by the ankles and dragged the Fighting-type Gym Leader as she tried to crawl away from it. She screamed in horror as Shauna grabbed her by the wrists in order to save her from being swallowed, "Whatever you do, Shauna, don't let me go!" She said frantically.
"I won't, Korrina!" She grunted as she attempted to save her before the Poké Ball unleashed another arm and pulled off Korrina's skirt and cycling shorts, revealing her striped panties when they fell down.
"My skirt! My shorts!" Korrina shouted as she watched her skirt and shorts being swallowed as well.
"I'm done playing dumb with that Poké Ball!" Serena adjusted her hat and grabbed the Poké Ball, "OK, Poké Ball! You have gone too far! Now, Quit fooling around and give back-" The Poké Ball pulled her skirt off, exposing her pink panties, "My skirt!"
"Not cool!" said Shauna as her shorts ended up being pulled off and sucked by the crazy ball, much to her embarrassment as she blushed, "Oh, dear!"
"Is that Poké Ball a Pokémon?" Viola asked as she saw her friends in their undergarments and giggled before the Poké Ball pulled her pants off, revealing her blue panties with yellow butterfly wings, "Good Gosh! I think its ability is: 'Clothing Snatcher'!
The five trainers, now pantsless, screamed in embarrassment as they pointed each other's underwear before Calem stopped them, "Stop! Why are you all screaming?!" He said.
"Because of that Poké Ball, we're pantsless! I don't want to walk around without my skirt!"
"That Poké Ball stole my shorts! I washed it earlier!"
"I don't want to take photos without my pant! If they see me without it, my confidence is lost!"
"And mine too! What if the female Evolution Fighter would walk around without her skirt and shorts?" Korrina complained to herself before seeing her skirt and her shorts walking on their own, along with Calem's pants, Viola's pants, Shauna's shorts and Serena's skirt, "Hey! Now that they're all here, I'm gonna-Ow!" She yelled in pain after her shorts kicked her on the shin, making her to hop in pain.
"Korrina, they are all Poké-Slacks!" Serena told her, "Pokéslacks are...pants, skirts, shorts being possessed by the Poké Ball and Mismagius!"
"They are all fighting-type!" Calem saw his pants being normal-type again, along with Serena's skirt being ghost-type. He saw Shauna's shorts being Fairy-type.
"My pants are bug-type!" said Viola as she saw her pants acting like a flying grasshopper.
"And I have no idea how they acted-Wait, I think a battle with our pants will help."
Later, Calem and his friends decided to battle with their pants in order to get them back to normal after they were possessed in first place. Each one looked determined as the former ordered his pants to use the ability, "Blue pants! Feet stomp!" He commanded.
The blue pants nodded in agreement and went towards Viola's pants and gave it a powerful foot stomp, shocking her as Viola smiled, "Allright, Green pants! It's time to make this battle fantastic! Do the Fantastic Rump-stomp!" She said as her pants went towards Calem's pants, jumped higher and landed rump first on it, "Yes! That's fantastic!"
"Off we go, shorts!" Shauna shouted as her shorts unleashed a powerful pink ball of energy and aimed it at Serena's skirt, damaging it.
"My turn to do it! Go for it, skirt and shorts!" said Korrina as her skirt and shorts gave the skirt a powerful kick.
"Skirt! Use the vacuum!" said Serena.
The skirt nodded as it inhaled the shorts, pants, skirt and the cycling shorts. It chewed, chewed and chewed until it spat them out into the ground. The battle became intense as the five trainers ordered their pants to attack each other, the blue pants and the red skirt jumped highed and looked at each other while giving an affirming nod and they stomped and inhaled until the skirt vacuumed the four inside before causing an big ghostly explosion. After the battle ended, The pants, skirts and the shorts went back to normal and looked intact after being possessed.
"There we go! Now, they're back to normal," stated Calem.
"Dear Arceus! I'm glad that my skirt is back to normal! It's a part of my dress!" said Korrina as she picked up her skirt and has put it on before putting her cycling shorts as well, looking well-dressed, she smiled, "Yes! Gotta Skate on through!"
"This was just fantastic! Nobody will humiliate me!" Viola happily has put her pants back on.
"Now, let's keep our pants on and make sure that Poké ball or Mismagius won't mess with us!" Calem has put his pants on as well.
"You're right, Calem!" Shauna has put her shorts on.
"That's right!" Serena has put her skirt back on, "We hope that nothing bad will happen to our pants!"