A/N: Hello fans! :) This is my first Phineas and Ferb fanfic, so please enjoy! :)

PLEASE READ: This takes place in high school when Phineas, Ferb, Isabella, etc. grow up and attend Danville High School as sophomore—Candace and Vanessa are in college, and Phineas and the Gang have stopped with their wacky inventions—this is what happens when the little boys with the greatest imaginations, grow up.

Disclaimer: I do not own Phineas and Ferb… but if I did, I would so own Perry the Platypus!!! :)

"Mr. Fletcher, did you have a question?" Mrs. Mays asked, pointing to a tall, skinny green-haired boy sitting in the back.

"But if the quantum of the square root was x, wouldn't the numerator in the equation be pi, the infinite number?" Ferb corrected. He didn't ask, he corrected, and that's what drove Mrs. Mays so crazy. Ferb knew when he was right—he was never wrong in math class.

Mrs. Mays sighed. She looked down at her workbook again, and then used her chalkboard eraser. "You're right, Mr. Fletcher," she said, voice impatient. "Again." Ferb, as he usually did, said nothing and just relaxed in his seat a little.

Mrs. Mays twisted a dark blonde lock around her finger and decided that she didn't get paid enough to deal with Ferb and his step-brother. She turned her head to see a skinny, red-headed boy staring out the window, his eyelids closing. His hair too, was spiked like Ferb's in a similar, rebellious way, but unlike Ferb, Phineas spoke too much and wasn't as gifted in math—but from what Mr. Reed, the English teacher said, he could rewrite Shakespeare's plays and make them better.

"Mr. Flynn," Mrs. Mays said in a loud, clear voice. "May you repeat what Ferb just said?" she knew he couldn't though. If she knew that he knew what Ferb knew, than she wouldn't have asked him what he knew what Ferb knew in the first place.

Phineas tapped his chin thoughtfully and said, "Ma'am, Ferb doesn't say much at all."

Mrs. Mays rolled her eyes and said, "Mr. Flynn, aren't you a little old to be staring out windows during geometry?"

Phineas stared her straight in the eye and said, "Yes, yes I am." Mrs. Mays hated when he did that—no kid ever had the courage to stand up to her way like Ferb and Phineas did.

Mrs. Mays opened her mouth to say something when the bell rang. "Class dismissed," she said. She watched Phineas and Ferb gravitate towards each other and laugh about something. At least she was as lucky that she didn't have that Indian kid Baljeet in her class—she wouldn't get anything done if she was being corrected all day.

She closed her binder, stuffed it in her bag, and exited the classroom for lunch.

* * * *

"Ferb, mom needs to learn to pack more than just, uh, this," Phineas groaned, holding up a soggy green-looking sandwich.

Ferb cocked an eyebrow. "I don't believe you can blame mum for a sandwich you left in your gym locker for three days," he said.

Phineas sighed. "You're right. She's been crazy about Candace and the wedding and Jeremy—I feel like it's never going to end."

"You're happy for her, right? Candace, I mean," asked Ferb.

His step-brother shrugged. "I think I'm supposed to be, but Candace wants a big white wedding, and we don't have all that financial support… as if she wasn't melodramatic enough, she was crying to mom on the phone last night because she saw Jeremy talking to another girl, or something," Phineas sighed. "I feel really bad for her."

"Hey!" a feminine voice piped up and Phineas turned around to see a half-Hispanic girl in a dream of pink and chartreuse. "Watcha eatin'?" Isabella asked. She wore a denim mini-skirt with chartreuse-colored "fur" lining the waistband and a hot pink top with a cropped denim jacket over it. Her midnight locks were pulled back into a long ponytail that tumbled down her shoulders, and she sported a pink butterfly clip.

Phineas groaned. "Three-day old tuna fish salad sandwich," he explained.

Isabella's nose scrunched up. "Eww…" then suddenly, she asked, "Where's Baljeet and Buford?"

Phineas shrugged. "Baljeet's prob'ly at the library, and Buford—oh, look here he comes now."

A meaty, pale guy in a black t-shirt with a skull as its only decoration and black jeans with a pepper-colored crew-cut stepped over to them. "Hey guys," he rasped. He had an apparent Mid-Atlantic accent, and his voice was husky and gruff.

"Hey Buford," Phineas said. Then grimacing at the smell coming from a paper bag Buford was carrying, he asked, "Watcha got there?"

"Some fish I stole from a kid's locker," Buford explained. "I'm planning to stuff it in Mrs. Mays's desk."

"Good luck with that," replied Phineas, not wanting to get involved.

"Hey, Isabella, where are the rest of your friends?" suddenly asked Phineas. The Fireside girls had graduated only a few years before, but still remained close friends.

"Well, the Drama Club is on a field trip to the Danville theater," Isabella shrugged. "I forgot to get my permission slip signed."

"Aw, bummer." Phineas was the one who spoke the words, but Ferb was the one who looked disappointed—Isabella knew he had a thing for Adyson, the short brunette who had a thing for wearing shirts without sleeves.

"I am sorry I am late, but I got hooked on a book about quantum physics!" a meek, Indian-accented voice came from behind Isabella. There stood a tall, lean, skinny Indian boy with several heavy textbooks in his arms who looked like his arms were going to fall off.

"Hi Baljeet," greeted Phineas. Baljeet stood almost as tall as Ferb, hitting his growth spurt over the summer, and wore jean overalls and a yellow t-shirt, his black hair in curls around his head.

Baljeet sat down at the lunch table with his friends and pulled a plastic container of rice out of his book bag and began spooning white rice into his mouth.

"So was the Spanish test hard today?" Buford asked Isabella.

Isabella shook her head "no". "No, it was really easy! I got one hundred! Me hablo espanol!" she said, proudly.

"Isabella, it's easy for you 'cause you speak fluent Spanish," Phineas pointed out. "And Buford, it wasn't easy. I got a C I think…"

"Crap," Buford cursed other words quietly under his breath.

The lunch bell rang. "The rest of the Firesi—err, the rest of the girls should be here soon. I'll see you guys after school!" Isabella stood up and walked off with her empty lunch tray.

The rest of the boys threw away their lunch without another word, and exited the cafeteria for their fifth period class.

A/N: U like? PLEASE REVIEW!!! :)