Okay let me start by saying that this story takes me a bit out of my comfort zone. Now Personally I'm not going to be going with anything that makes me uneasy so the problem mainly comes from what I might get from the reviews … I will put something at the end of the next chapter but I will get to that later. Seeing as this is the first chapter I don't have any reviews to respond to but that will be solved by the second chapter so don't worry. Note: yes I know that this idea has been done before but I have yet to see it done like this on this site (if it has then tell me the name of the story).

Disclaimer: I don't own anything or anyone except Erick.

(Phineas's POV)

"Ferb, how are the calibrations on the genetic stimulator coming along?" Ferb turned his head around from the control panel and gave me a thumbs up. Summer was already a week in and we were still working on our first project, "do you think we'll be able to finish today?" Ferb turned around and gave me a look that said, 'please be patient' "I know but this is our last summer before high school and I want to start it off with a bang" Ferb shook his head, gave me a 'at least you still have a summer before then' look, and turned back to the control panel. Since we were kids and that summer some time ago Ferb and I had grown some. Ferb had grown taller, slightly more muscular, and had a deeper voice while I just grew taller. My voice had changed a little but it was still high but only in the tenor range. Our latest idea was a device that swaps physical features like hair color, eye color and other things like that with someone else. We were working on this idea since the beginning of summer and with good reason. First we wanted to make sure that all the safety measures and redundancies were operational, you want to be sure that something wont go wrong mid way through when messing with something this important. Secondly most of our friends were busy until today and we didn't want to do anything without them.

As we were working we heard the fence open. When we looked over we saw that it was our friend Erick. Erick was tall, had slightly long brown/dark red hear, and always wore a green hoodie unless it was exceptionally hot out. He also always wore cargo pants, and a red tee-shirt, "okay, after two and a half days, I think I finally made it possible to identify any human chromosome in existence"

"That's good, you brought the drive right?" Erick held up a hard drive, "I was thinking something a little smaller"

"Don't start with me Phineas, there are more chromosomes in the human species than I care to count a second time"

I sighed, "well you did get all of them right?"

"Yes Phineas I got all of them. I triple checked possible location"

I smiled, "well thank you. You saved us a lot of work"

"Just happy to help" Erick walked over to Ferb and handed him the drive.

Ferb took the drive and let out a laugh, "are you sure this has nothing to do with impressing Katie?"

"No Ferb. My help has nothing to do with impressing Katie"

I looked at Erick and Ferb confused but eventually just shook it off, "oh Erick what did your uncle say about staying for the week?"

"He wants to know who else is going to be staying but otherwise it's okay"

"Isabella, …." I scratched the back of my head trying to remember the rest, "Buford, … I think Baljeet's parents changed there plans"

"They changed them again, he is coming" Ferb said.

"Oh, then Baljeet is coming" I looked up to the sky and tried to remember the rest, "I think Django is able to come, … Irving's going to be around, … Adyson and … I forgot" I looked back down to see Erick looked nervous about something, "what's wrong?"

Erick was about to say something but Ferb beat him to it, "he wants to know if Katie is coming" Erick shot a quick glare at Ferb then turned back to look at me.

"I don't remember if it's Katie or Ginger but it's definitely one of them" I saw Erick look downhearted for some reason but decided not to question it.

I began walking back to the machine when I heard another voice come from the gate, "hey Phineas" I turned around to see that my closest friend, (other than Ferb) Isabella had made it here, "what'cha'doin?" Isabella had also grown some … to put it mildly. Giver she wasn't as tall as me but she had gained a lot of details. She gained some curves over the years but … okay she did look like a model but she never really cared for that kind of stuff. Also some time before we finished our first year in junior high she started giving off this … warm fuzzy feeling that I'm guessing other people also felt when they were around her.

I ran over to greet her, "hey Isabella, how was your grandmothers?" After school ended Isabella went to see her grandmother over seas. Her mother was out of the state for a business trip and wanted Isabella to fly directly to her but Isabella insisted on spending as much time as she could in Danville (A.N. In truth Isabella told her mom that she wanted to spend as much time as she could with Phineas but Phineas doesn't know that)

She giggled, "it was nice going out of the country for the week but I really missed the two of you and the rest of my friends"

"Am I included in that count?" Erick asked.

Isabella closed her eyes, "actually I was quite pleased to not have my life put in danger again"

"I would like to point out that those incidents were almost never my fault"

I sighed, "key word almost"

"PHINEAS!" Erick shouted.

I turned to Erick "Well it's true Erick, you have put her life in danger in more than one occasion"

Erick folded his arms and smiled, "less times than you have"

"Can you three stop arguing?" Ferb shouted back at us. Ferb was still quite most of the time and only spoke to relay something important or if he was annoyed … which was often.

Erick looked at Isabella and I then shook his head, "whatever. Isabella would you by chance know if Katie is coming?"

"Sorry I don't know if your girlfriend is coming or not"

Erick leered at Isabella as I tilted my head in confusion, "wait since when has Katie and Erick been boyfriend and girlfriend?"

"I heard that they were already engaged" Ferb said joining the conversation.

Erick quickly turned to Ferb, "Katie and I are not engaged"

"Ya that's right, you two already got married right?" Isabella said in a joking manner.

Erick looked like he was about to say something but Buford walked, "Hi guys, what'cha-oof" Isabella elbowed him in the stomach.

"Don't you even try it" Isabella hissed.

"You know girly" Buford started as he got his composure back, "your really lucky I don't fight girls"

I say Isabella roll her eyes, "Oh I feel such a relief"

I looked over to Buford then to Isabella, "hey Buford, doesn't Baljeet usually come with you?"

Buford searched himself real quick then looked at his back, "I musta dropped him" Buford turned around and left while Erick walked over to help Ferb. I looked over to Isabella who was stroking her elbow like it was injured or something.

I walked over to her "Hey you okay Isabella?"

She looked at me confused, "what do you mean?" I pointed to her elbow, "oh it just stings a little"

"May I see it?" I saw red blood cells gather in her face for some strange reason.

"Um sure thing Phineas" she rolled up her sleeve and revealed that her elbow was really bruised.

I was shocked "what? - is this from a moment ago?" she slowly nodded, "why? - we have to get this taken care of"

(Phineas's POV)

(in the kitchen)

I got some ice from the freezer and put it in a plastic bag, "Here Isabella put this on it"

She took the bag and smiled, "thanks Phineas, but I don't really need ice, my elbow's feeling fine"

I placed a hand on her elbow and she let out a his of pain, "you were saying?" she looked away and placed the bag on the bruise, "you know you shouldn't be trying to hurt Buford, his hide is too thick"

Isabella sighed, "well what am I supposed to do? Just let him use my catch phrase?"

I walked over to a drawer and started looking for tape "why not? You let me use it all the time"

"Your different"

I pulled out some tape and started tying the bag to Isabella's arm, "different how?"

More red blood cells gathered in Isabella's cheeks, "you're … my closest boyfriend-I mean friend who's a boy- I mean" Isabella sighed, "you're my closest friend period"

I laughed a little, "you mean your best friend isn't one of the fireside girls?"

"We're not going to be fireside girls for much longer, the age limit is 15"

"But you're still only 14 Izzy"

"I still only have a year left"

"Your skipping the subject Isabella"

"Sorry I … wait a minute, what did you call me not two minutes ago?"

I froze in confusion, "Isabella?"

She beamed at me "no before that"

I scratched the back of my head trying to think of what she was talking about. Then it hit me, "oh Izzy"

"Ya why did you call me that?"

"I don't know it just came out like that" I shook my head, "you still skipping the subject Isabella"

Yet again red blood cells gathered in her cheeks, I would have to find out if she's sick or something later, "what was the subject again?"

I froze, "I … think it had something to do with you fighting Buford?"

Isabella looked away, "I'm not letting him use my catchphrase"

I rolled my eyes, "well then you have to find a better way to stop him from saying it. I only know two people who have injured Buford without injuring themselves, and both of them are in the back yard now" Isabella didn't respond, I placed a hand on the ice sack on her elbow, "your delicate Isabella, you can't just go around acting like you're not"

Isabella glared at me, "are you calling me weak?"

I raised my hands in defense, "yes-no! Well yes and no but it's not like-"

She placed a hand over my mouth, "choose your next words VERY carefully Phineas" I nodded and she removed her hand.

"Your are a better fighter than Erick when he's not using his sword" Isabella nodded, "BUT you're unable to take many hits"

"And why is that?"

I froze, 'well it's because genetically, girls are more frail than boys even if there are girls that are tougher than boys' I shrugged and jammed my hands in my pockets, "I have no idea" she continued to glare until my phone rang, "hello?" I said putting it on speaker by accident.

"Dude Phineas, stop snugging with your girlfriend and come out here and help us finish this"

I felt my cheeks grow red-hot, "she's not my girlfriend Erick! And we're not snugging!"

"Whatever just finish with your kiss and-" I ended the call.

"Why does everyone think that we're dating?" I looked up to Isabella and saw that her face had turned red from listening to the conversation.

"Well … we have been friends for a long time ..."

"Ya but … it's not like we're dating"

"well yes but ..."

I looked at her curiously, "what is it?"

"If you leave out kissing then we act a lot like a couple"

"How … so?"

"I spend every day with you and Ferb as you build you idea or go on your adventure"

"So what? You're our friend"

"We also sit together in class, walk together in the halls, you are always there when I'm at cheer practice-"

"Well it's not like I can hang out with Ferb while he's in high school"

"That's not the point Phineas!" she looked away "Are we really just friends?"

I thought for a moment, "would we actually want to put that in jeopardy?"

She looked back to my with her big pleading eyes, "would we really have to?"

I thought for another moment, 'would it really be bad to date Isabella? No not really but … can I imagine myself waking up in 15 years with her as my wife?' (A.N. I just came up with another story idea) I looked out the window, 'would I really want to spend the rest of my life with her?' I mentally sighed, 'it wouldn't be a bad thing' Just then my phone rang snapping me out of my trance, "we still need to go outside and finish with the chromosome swapper"

"But Phineas"

I placed a hand on her shoulder, "I promise that we'll talk about this later Isabella, but right now we need to get outside"

Originally I wasn't planing on ending the first chapter here but it just seemed like a good place to end it. Now this story is supposed to focus around Phineas and Isabella but there is room for other ideas that I have yet to come up with. So if you have something that you desperately want to see in this story then please tell me and I will consider putting it in. And to end with, would you believe that this chapter gave me a second idea for a story?

R&R