After breakfast, Phineas & Ferb made their way to Jim & Tim's room to learn more about the genius pair.
"Wow, you two sure have built a lot of neat stuff" Phineas commented, upon observing their inventions.
"Thanks, we're really proud of them" Jim said "but our newest invention will be one of our best."
Tim handed Phineas a diagram "we're working on rocket powered bikes, capable of breaking the sound barrier."
"That will show Nelson Douglas down the street that his ten speed isn't so great" Jim added.
"Very interesting" Phineas said, observing the plans "and fun, who wouldn't want to ride a bike like that? What do you say Ferb? Should we help them out?"
Ferb said nothing and instead pulled a screwdriver from his pocket.
"Glad you two are on board" Jim said "you guys know how to use a welding torch, right?"
A few hours later, at Bueno Nacho, Monique was enjoying lunch in a booth, when she noticed Kim rush in and quickly sit down.
"Tough day?"
"You have no idea" Kim said "Candace is a total Kim fan girl. And I could handle that, in moderation; but she is super obsessed with me. I swear, I think I'm going to wake up tomorrow tied to a chair and find that Candace has stolen my identity, like in the movie Solitary Caucasian Woman."
"Are you sure you're not just exaggerating?" Monique asked.
Before Kim could answer, Candace entered the restaurant, clad in a very familiar looking outfit, consisting of a golden sweater and blue pants.
"Hey girls, what's the sitch?" she asked "man, that is fun to say."
"On second thought, you'd better sleep with one eye open girl" Monique replied.
"You like my outfit?" Candace asked.
"Yeah, I have the same one" Kim replied.
"I know, now we're like twins, but not creepy and evil like your brothers" Candace said "I'm going to go order for us, you want anything Kim?"
"Just a salad" the girl replied.
"Two salads coming up" Candace said as she skipped off to the counter.
Monique watched the girl go "that girl is a couple nachos short of a full basket."
"What am I going to do Monique?" Kim asked "this whole copying me thing has got to stop, but I'm not sure how to get through to her."
"You could just tell her you don't want her copying you anymore" Monique suggested.
"I've tried, but she won't listen" Kim explained.
Just then, Candace arrived back with the salads "here you Kim, one for you and one for me" she said "good call on these salads, some of the stuff here seems really fattening. They have this thing called 'the naco', which totally sounds gross beyond all reason. But I guess that kind of thing is so not the drama for you, right?"
"Girl you need to GAL" Monique said. Candace stared at her with a blank expression. "Get A Life" the African girl explained.
"You're funny" Candace said "you know, I don't see too many African girls in my city."
"Candace, we need to talk" Kim said.
"About what?"
"Look, you and I share some common interests and I consider you a friend, but I think you're taking things too far" Kim explained "so, could you please knock it off?"
"Okay" Candace replied.
"Really?"
"Sure, no problem" Candace replied.
"Spankin'" Kim replied, happy that Candace hadn't made a scene.
After their meal, both girls waved goodbye to Monique and decided to head out. But Candace asked Kim to let her make a phone call before they left.
"Hello Stacy" Candace said, once Kim was out of ear shot "guess what? I've become friends with Kim Possible! I know, she said I was nice, and we shared a lot of interests! Anyway, tell everybody, especially Jeremy, and I'll see you when I get back."
With that, the girl hung up her phone and headed outside
Back in their bedroom, the 4 geniuses were hard at work.
"Soon, the Jimstyle Mark X rocket bike will be complete" Jim said.
"Jimstyle Mark X? I thought we were calling it the Timstyle Mark W?" Tim questioned.
"I came up with the idea, so we're naming it after me" Jim replied.
"I never agreed to that!" Tim replied.
While the twins argued, Phineas turned to his step-brother.
"Keeping helping them Ferb, there's something I have to do" he said.
He made his way to the living room and picked up the Possible phone, and began to dial a number.
Back in Danville, Isabella was sitting on her couch nervously.
We searched for four hours yesterday, and we couldn't find Perry anywhere she thought what am I going to do? If Phineas finds out I lost his pet platypus, he'll never forgive me! Then I can forget any chance of him ever becoming my boyfriend.
The girl was brought out of her thoughts by the sound of her phone ringing. She got off the couch and answered it, "hello?"
"Hey Isabella."
"Phineas, hi" she replied, trying not to sound nervous "how's your trip been so far?"
"Pretty neat, I met some kids who are as smart as me and Ferb. We're helping them build rocket powered bikes that can break the sound barrier."
"Sounds great" Isabella replied "Perry and I have been having a lot of fun too. Yup, I definitely did not lose Perry, and he is still in my house and not lost."
"Okay" Phineas said, a little confused "could you put him on? I want to hear him."
"Sure" Isabella said, feeling the breath suck out of her "hold on one minute." She covered the talking part of the receiver with her hand "what do I do, what do I do?" she asked, clearly panicked.
Realizing she couldn't keep Phineas waiting, she took her hand off the receiver and did her best impersonation of Perry's platypus noise.
"Hey Perry, glad to hear Isabella's treating you okay" Phineas said "don't worry, me and Ferb will be back for you soon. Well thanks, for the update Isabella, see ya soon."
"You too Phineas" Isabella added, before hanging up. The girl quickly gave a sigh of relief "whew, that was close" she said "but I have to find Perry before Phineas gets back. Where could that platypus have gotten to?"
Over at Drakken's lair, meanwhile, the villain was finishing attaching the new Electron Molecular Atomizer to the Slave-Inator.
"There, done" he said "now, once we activate the Slave-Inator, we can boost its' power a thousand fold."
"Okay, so how are we going to do it?" Doofenshmirtz asked "just point the thing at the computer and turn it on."
"Of course not" Drakken replied "we shall attract our prey with something no social networker can resist; a viral video."
"I know I can't resist them" Doofenshmirtz added.
Later that day, at the Possible household, Kim and Ron were hanging out in her room, completely Candace free.
"I thought Candace was going to make a scene, but she was fine with it" Kim explained "I guess I was wrong about her."
"Still, how freaky would that be, somebody walking around who looks and acts just like you?" Ron replied "I know I wouldn't want that."
"Me too, one Ron Stoppable is plenty" Kim replied.
"Although another Kim would be cool" Ron thought "think about it, one of you could go on missions, and the other could stay here with me."
"It wouldn't actually be me Ron, it'd be Candace dressed like me" Kim explained.
"With her trying to copy you, I'm beginning to think she might be related to Camille Leon" Ron said "did you notice they sound the same?
"Yeah, but it must be coincidence. I had Wade look into it; he says Camille's still locked up."
"Or maybe that's just what she wants us to think" Ron replied.
"She is pretty clever" Kim mused "I'd better have Wade check again."
"Anyway KP, check this out. I was thinking we should have a cool couple name, like they do in Hollywood. How do you feel about 'Rim'?"
"Not loving it."
"Well our names are very short, it's not easy to put them together and make a cool coupley name thing. How's 'Poppable' work for ya?"
"Ron, why do we need one of those? We're not celebrities or anything."
"Are you kidding? You're known, like all over the world!"
"True, but the fame isn't important to me, you know that."
"Maybe, but you'll always be a bon-diggety celebrity to me" Ron said "you deserve to have dates in Paris and wear fancy jewelry and shop at places with really fancy names."
"I appreciate that Ron, but I know you can't afford that, and I'm okay with it" Kim said "I don't need a glamorous lifestyle to be happy, just you."
"You mean it?"
"Ron, do you remember what you said when the aliens invaded Middleton?"
"Kim, I barely remember what I said yesterday."
"You told me the whole sitch made you realize you couldn't live without me" Kim replied "no boy has ever said anything like that to me before. And I realized it was a sign of how much you'd matured."
"I've seen you mature so much in the last year, from becoming running back, to being a good big brother, to even developing incredible fighting skills" Kim continued "and I knew, even when we were just friends, that you could achieve anything if you applied yourself. And no matter what anyone else says, I am proud of you."
Ron said nothing for a few seconds, then leaned in to kiss his girlfriend.
"'So proud of you', oh man, this is great stuff!" came a familiar voice.
Kim & Ron broke their attempted embrace and noticed Candace once again in the room, holding a small notepad.
"This is so sweet, I may cry" she said, holding back a tear.
"Candace, Ron and I are trying to have a moment here" Kim said.
"Which you totally ruined!" Ron added.
"I know, but I was bored watching TV, so I thought I'd come up and see what my new BFF was up to" Candace said "and then I heard you say that really romantic stuff, and I was like, 'wow, if I said that to Jeremy, he'd totally be mine!' Oh man, I just realized, we both like blondes! Man, talk about fate, huh?"
"Yeah, it's kismet" Kim replied sarcastically.
"Anyway, do you think I could use that?" Candace asked "of course, I'd have to change some of the words around, because…"
"What is your deal?!" Kim asked.
"My…deal?" Candace asked, confused.
"Yeah, why do you keep copying me?" Kim asked "I thought you said you were going to knock it off."
"Oh, is that what you said?" Candace asked "see, after you said you considered me a friend, I kind of blanked out, 'cause I was so happy. So what was it you wanted?"
"For you to quit copying me!" Kim yelled "first you copy my look, then you start using my phrases. What are you going to do next, start dating Ron?"
"I wouldn't go out with her if she did Kim" Ron interrupted "she's way too skinny for me. Seriously lady, eat some food."
"But…I…" Candace stammered.
"Look, you have your own life, quit trying to steal mine!" Kim added.
Candace stood there for a few minutes, tears in her eyes. Then she ran down the ladder that led into the room, crying.
"Oh man, I can't believe I exploded like that" Kim said "I suppose I should go talk to her."
"Are you still sure she's not Camille?" Ron asked.
Next time, Kim apologizes, and Candace seeks a way to prove her worth…by going on a mission with Kim. Plus, more fun building rocket bikes.