I do not own Phineas and Ferb. But Summer belongs to me! This takes place during "It's About Time."

What's On Perry's Mind: I Want To Be Your Nemesis, Again.

Ch. 1: There's An Elephant in the Room and a Panda in the Closet.

It was during the first few weeks of summer when the Flynn-Fletcher family decided to take a trip to The Museum of Natural History. Perry was in pet mode as he and the boys looked at the dinosaur fossils. Phineas and Ferb's dad was leading the tour eagerly. Phineas and Ferb were listening eagerly while Candace was bored out of her mind. Perry wasn't listening to their Dad, because he was looking at the fossils wondering how long it would take before Doofenshmirt would try a dinosaur-related inator. He bet two weeks, a month tops.

"Oh look. This T-rex footprint was found not thirty yards from this very spot." said Mr. Fletcher. "Hey, and it says here that this fossil was dug up right near our very own neighborhood." guided Mr. Fletcher, as he showed the boys a fossil of a dog skeleton with a collar with a huge, triangular tag labeled "Bucky".

"Didn't we have a dog named Bucky who got sick and went to live on Kindly Old Man Simmon's farm?" Phineas asked.

"Ahh, Agent B. I heard of him. He was quite the agent until he was thwarted by Doofenshmirtz's "Scary Vacuumy Noise-inaotr." Perry thought..

"Oh Uhh, let's move on, shall we. " He changed the subject and lead the boys to a skeleton of a farmer. "This next exhibit is kindly old... man... Simmons, HEY! Who's up for milkshakes?"

"What is it about a farmer's skeleton that makes people uncomfortable?" Perry thought. Ferb poked Phineas to show him an exhibit. Phineas' eyes grew as he gazed upon the hall labeled "Gadgets Through the Ages."

""Gadgets Through the Ages" This exhibit was made for us, Ferb. Hey, what are all those people looking at?" asked Phineas.

Phineas and Ferb walked to the group and Perry followed. He was hoping that the boys would get distracted so that he could run off and fight Doofenshmirtz. Once the boys saw the invention, Perry wondered off to a nearby photo booth. He put on his fedora and jumped into the booth. As he went down the chute, pictures were being taken of him. He slid down a narrow tube and jumped into his seat. He saluted Major Monogram and waited for his orders.

After a few seconds, Major Monogram has done nothing. Perry starts waving his arms to get his attention.

"Hello? Hellooooooo? Anybody there?" Perry thought to himself.

Carl appears on screen and says "Uh, Agent P? Hey, it's me. Carl. The intern."

"Hi Carl. I'm Perry. The Platypus." thought Perry.

"We got a bit of a situation here. Major Monogram has been frozen like this pretty much all day. Solid as a rock." he knocks on him to prove his point, but that causes the frozen Major to tip over and fall.

"Timber." thought Perry.

Carl picks up Major Monogram and apologizes "Oh, sorry. Anyhow, if the Major we're able to, I'm sure he'd say, well, "Ouch", first of all, am I right? Hee hehe hee."

"You do realize he's right next to you right. He'd probably say, "Carl you idiot" or something similar." thought Perry.

"But seriously, I'm sure he'd say "Doofenshmirtz was up to something, and you should get to the bottom of it". Am I right, sir?" he asked. Major Monogram just mumbled something. "I'm gonna take that as a yes."

"I think he's saying "Exactly, now get me unstuck!" Carl." thought Perry.

"Good luck Agent P." said Carl.

"Well, if Doofenshmirtz is freezing people, I better take him by surprise." he thought to himself.

One trip through Danville's sewers and up the pipes of Doofenshmirtz Evil Incorporated later...

Perry leaps from Doofenshmirtz's pool, wearing a scuba diving suit, mask, and oxygen tank. He unzips the suit off and takes out his grappling hook and rolls towards the dome part of the building. He creeps along the edges and can see Doofenshmirtz's silhouette firing a ray gun.

"Oh! Take that!" he yelled.

"He must be playing with his replica of me." Perry thought.

"And that!" he yelled, firing the ray gun.

"Wait, he never shoots the dummy me." Perry realizes.

He creeps to the door and kicks it open, catching Doofenshmirtz by surprise.

"Perry the Platypus! I, uh, I uh, uh..." he hides the ray gun behind his back and says "There's no one else here. I mean, w-what are you doing here, Perry the Platypus?" he asked guiltly.

Suddenly the knob of the closet door starts jostling. Doofenshmirtz turns to look at Perry sees a paw print of his cheek.

"Heh... I have mice?" he lied.

"Mice should be the least of your concerns right now." Perry thought as he made his way to the closet.

"I- I wouldn't go in there if I were you!" warned Dr. Doofenshmirtz. Perry opens the door and is shocked top find a Panda in there. It was the same height as Perry with a white belly, black arms and legs, a little balck nose, two round black spiot around his eyes, and a fedora similar to Perry's, but with a lighter shade of brown. Perry just stared at him and blinked.

"I've heard of a skeleton in your closet, but this is ridiculous." Perry thought.

"Wow, Heinz had bad taste in agents." the panda thought.

"Perry the Platypus, I swear, I've never seen this secret agent looking panda before." Doofenshmirtz lied. Perry pointed to the paw print on his face and then to panda.

"Then what's that, you hussy?" Perry thought.

Heinz looked at the paw print and started to wipe it off with a hankerchief as he explained "Heh heh, well, there's a panda in my closet and a panda paw print on my cheek. But it's not what you think! We're not enemies, we're just bad friends."

"Does Major Monogram know about this?" Perry thought.

"Don't blame me. Blame Dr. D for trapping me in the closet." thought the panda.

5 minutes earlier...

The panda called Peter kicked the door to Doofenshmirtz's apartment just like Perry would have done.

"Ahh, Peter the Panda, you're arrival was uncanny, and by that I mean COMPLETELY CANNY!" he hit a button and a bamboo cage trapped Peter the Panda. "Do I have something that will stop you in your tracks. He he hee. Behold, the FREEZE-INATOR!" He showed him the Freeze-inator, which looked like a green ice cream cart with a giant ray gun attached to it.

"Wow, I can see you went all out on the details." Peter thought, chewing on the cage.

"You see, it all started back in Gimmelshtump. Whenever my I played with the other kids, I was always chosen for the most boring parts. In freeze tag, I was the one who was frozen and no one ever tagged me out. Ever. In basketball, I was the hoop.I was even a garden gnome, and which is another intresting story-"

POW!

Before he could finish, Peter chewed through the bamboo and kicked Dr. Doofenshmirtz's face, leaving a paw print.

"Hey hey hey, what gives? I was in the middle of something." said Dr. Doofenshmirtz. Peter ignored him and tried to deliver a punch. Doofenshmirtz dodged it and pulled out a ray gun. "Oh! Take that! And that"

Peter dodged the laser, but Doofenshmirtz kicked him into the closet, which slammed shut behind him.

SLAM!

"Perry the Platypus!" exclaimes Doofenshmirtz.

And now let's return to the present.

"Sorry, Perry the Platypus, I didn't want you to find out this way. Okay, here it is. Peter the Panda is my new nemesis." said Doofenshmirtz.

"You cheated on me?" Perry thought.

"We met at an evil genius expo in Seattle, and, well, me and Peter, we instantly disliked each other."

"You told me you were in the hospital recovering from your latest scheme." thought Perry.

"And them, he foiled a little evil scheme of mine. And, I didn't plan it that way, it just happened." he looked at Peter and asked, "Peter the Panda, be a dear and go get us a soda."

"Sure thing. But none for the Platypus." Peter thought and he went to get the two of them soda.

"It's not that I don't hate you anymore. I do, but look, I- I just think it's time for us to, you know, take a break and start fighting other people."

"You're dumping me?" Perry thought. Peter had come back with two glasses of soda. The two drank the soda in front of Perry.

"Thank you, Peter the Panda. I'd offer you one, Perry the Platypus, but I- I think it's better if we just have a clean break. So, where was I? Oh, yes! So, Peter the Panda, you think you have outwitted me!" Doofenshmirtz resumed. He looked at Perry and showed him to the door, as Perry backed away.

"Perry the Platypus, you're- you're making this harder than it needs to be. Go on, it's over now. Oh, that? That's a Freeze-Inator ray but, uh, I- I don't want to explain it again. I just gave the whole spiel to Peter. But, don't worry. He's stopping me. He's- He's got it well in hand." said Doofenshmirtz. He closed the door and said "Goodbye." As Perry went to the elevator, he tunred back to hear Doofenshmirtz yell "CURSE YOU PETER THE PANDA!"

"That used to be me." thought Perry. As Perry left and headed towards his headquarters and started reminiscingabout the old days.

Without you're schemes, my life it seems, is empty
I spent all my time keeping you from doing wrong
You we're my only nemesis, I foiled my plans, but still I miss
The moments When We Didn't Get Along
So search your heart, please Dr. D, and I am sure that you will see
That you were always meant to be my only lifelong enemy

As Perry got out of the elevator, he headed to the stand where he put his hat.

But now you're doing battle with a panda from Seattle
I'll miss the moments When We Didn't Get Along

"I guess there's no point in wearing this." he thought to himself. He placed the hat on the stand and hit the button to close it.

Ooh...

End Of Ch. 1

I hope you liked this. Make sure to review and check out my other stories. See ya.

Fun Fact: In the actual episode, if you wait until 7:07 or when after Doofenshmirtz and Peter the Panda drink their soda, you can hear a tiny burp.