This idea popped through my head the recent day and I thought I would share it. This is inspired by act your age, I guess. I do not own Phineas and Ferb and did this for fun.

It's a bright day in Danville. The sun is out and shining, not too windy, not too hot nor cold; just about the perfect day.

A young boy walked out the gymnasium with another, whom is his brother- his step brother.

"I'll be honest with you Ferb" Phineas starts off. "So far our first day at Danville High isn't looking so bright." He starts thinking, "That event, in my opinion, could be better." He shrugs his shoulders. "At least they will hold a school dance." He sighs.

"Don't sugarcoat it, it stunk." Ferb calmly states.

"You're right Ferb." Phineas chuckles. "Too bad that school dance is girls request. So the girls have to ask the guys to the dance, huh?" he strokes his chin. It was obvious that he was enjoying this. "Not a bad idea. Too bad, I was planning on asking Isabella, but you know this way works too." He shrugs off.

Phineas puts his arm around Ferbs shoulder and they walk away to their class.

There was a figure by the gymnasium wall. There was a figure and that person has been spectating the turn of events. "Hmm… interesting"

While Phineas and Ferb were walking to their class, Phineas blurts out, "Hey Ferb, It's awfully convenient that our schedule is the same."

Ferb looks at Phineas and shrugs his shoulders.

"I hope we have Isabella in one of our classes. That way, we can start chatting and along the lines I will drop the information about the dance, so she will ask me to it." Phineas chuckles as he scratches his head. They both reached their classroom and walk inside.

"Hey look, there's Isabella!" Phineas exclaims. He started making his way towards her. While he was making a way, a girl comes up to Phineas and Ferb. Her brown hair was pulled back and up into a ponytail. She wore a white blouse and short jeans.

"Hey Adyson, long time no see" The enthusiastic boy says. "Hey guys." Replies Adyson. "Ferb, can I have a minute with Phineas? I want to ask him something."

Ferb looks at her and brings thumbs up. "Thanks Ferb" Adyson turns to Phineas. Ferb walks up to Isabella, and Phineas joined him shortly after.

"Hey, Isabella! It's good to see you!" Phineas exclaims. "I'm surprised we have this class together."

"Yeah, I am glad I have at least one class with you Phineas!" Isabella says, blushing a little. Ferb noticed this, but Phineas completely missed the hint.

Phineas looks at the clock in the room. "Hey, look. Class is about to start."

"Phineas we've got a couple of minutes." Isabella starts off, while scratching her arm. It was obvious she want to ask him something important. "So… ummm there's a dance later today… and I was wondering if you would like to go with me." She stammers, "Of course, if you didn't I would understand completely."

"I would love to…" Phineas replies.

Isabella clasp her hands and let out a huge smile on her face, as if it was the greatest thing that happened to her that day.

"but I can't." He resumed. "Adyson already asked me and I didn't want to let her down. He sighs. As usual, he didn't like to let anyone down, and because of that, he missed a lot of things. "Thanks for the thought Isabella." Phineas pats her on the shoulder and goes to his seat.

Isabella's face suddenly shatters into a frown. She turns and see Adyson walking towards her.

"Hey there, Isabella!" Asyson piped up. "I'm surprised that we have a class together. Now that I can rest easy, knowing there are some of my friends in the same class as I am."

Isabella stares at her in disbelief for a short amount of time, then she bursts out, "What gives Adyson? You know very well that I have liked Phineas for a really long time."

" Yeah, I know." The brunette teen replies. "I wasn't expecting it either."

"So why?"

The bell rings, indicating that class is starting.

"Well… I'll talk to you later, Isabella." She waved, while at the same time walking away to her seat.

"Adyson!" Isabella whispery shouts, irritated.

Fast-forward to later that day, at nighttime, an hour before the dance.

Adyson walks up to Phinea's house and knocks. Phineas opens the door, and Adyson sees that he is fixing his tie. "Hey Phineas! You ready for the dance?"

"Hey, Adyson!" He greets her. "Give me a few. I've got to make last minute touches."

"All right, Phineas" She replied, with sparkling eyes. Suddenly she felt a hand on her shoulder and she turns around, only to find that it is Isabella.

"Alright Adyson, what gives?" She blurts out.

"What do you mean Isabella?" Adyson chuckles, but in reality she was trying to avoid this situation.

"You know very well that I liked Phineas and was going to ask him to the dance!" Isabella points out. "Aside from that, I thought you didn't even like Phineas!" She exclaims. "You know, romantically." She added.

"You're right, Isabella." Adyson stammers. "With all the action that you showed us all earlier, I didn't see Phineas in that light as I did, but your affection toward Phineas rubbed off of me and I started feeling something."

"Back off, Adyson! Phineas…"

"or what?" Adyson scoffed. "Sorry Isabella, but you don't scare me right now. Phineas choose me, not you ok? So you need to deal with it."

Isabella stared at her in shock. She couldn't believe what she was seeing. Adyson stood there with her arms folded, smirking. Isabella slowly backed up and then she turned and ran into her house.

"I thought so." Adyson chuckled. She turned around, put her hands down clasped together, and smiled as if nothing happened. Phineas door opens and there Phineas stands.

"All ready!" He says enthusiastically. "Ready to go, Adyson?"

"Wow you look handsome, Phineas." She swoons.

Phineas closes the door and together they started walking. As they were walking, at some point it happened- they both held hands.

In the distance, Isabella stood at the porch of her house looking at them. She did not like this one bit, so she had to be at the dance.

At the school dance

Isabella made her way through the crowd, looking for Phineas. She spotted his red hair. "There you are Phineas!" She exclaimed.

Phineas has his hands wrapped around Adyson as a slow song played. He looks into her eyes and smiles. "You know Adyson… I'm really glad you asked me to the dance."

Adyson blushes and tries to bury her face, but failed. "Yeah. I'm glad that I built up the courage to ask you out." She looks back up at him into his eyes. Then she rests her head onto Phineas shoulder and they look like a married couple.

Isabella walked through the crowd to get a better view of Phineas. She happened to saw this scene. She couldn't believe her eyes.

"No" she took a step back. "Noo" she stared in disbelief. She felt weak in the knees and fell backwards. "Nooooooo!"

All of sudden, reality felt disoriented. She suddenly woke up, gasping, as if she woken up from a nightmare. She found herself on a table in Phineas and Ferb's Garage. It was the last day of summer, before they went into High School.

"All right gang!" Phineas exclaimed, as he entered the garage. "It's the end of the stimulation."

"It was all a dream?" Isabella replied, relieved that whatever happened, didn't happen.

"Well… no." Phineas explained. "These are virtual reality devices; It's the last day of summer, and Ferb and I were watching these on TV the other day and thought it would be really cool to try out before we head off into Danville High. We built it, tested it but it turned out a bit dull, so we enhanced it. So it's Virtual Reality that is based off the user's emotions, mental link. So it's like you are really there!" He said proudly.

"It felt so real…" Isabella said astonished.

"Oh and… we linked up you all: Ferb, Adyson,…" at that point, they woke up, groggily. "and you, to start with, with me out here, keeping tabs on you all. Wanted to start small first, and get all the bugs sorted through."

"It's based off of our emotions, huh?" She recalled. She suddenly glanced at Adyson. Her eyes started to water.

"Isabella, I can explain." Adyson stammered.

"Sorry guys, I got to go." Isabella put her arm over her eyes, to cover her tears and ran off.

"Isabella, wait!" Phineas shouted.

"It's my fault." Adyson said disappointed, while looking at the ground.

Ferb walked up to Phineas and put his hand on his shoulder. "Go to her. You can make it better."

Phineas looked back at Ferb and nodded his head. "As usual Ferb, you know what to say." He smiled and ran off to Isabella's house.

Isabella was facedown on her bed, crying onto her pillow. A million of thoughts flew through her head. "How could she do this to me?" and "Why wouldn't Phineas notice her, despite her obvious gestures that practically screams her interest in Phineas."

She hears a knock on her door, and she sits up, wiping her face. Now there is no sign that she has ever cried.

"Come in." She says. She finds out that the person is Phineas, and she feels all tense.

"Are you all right, Isabella?" His voice was full of concern.

"I'm feeling peachy keen." She lied.

Phineas nodded. He turned to reach for the door.

" Phineas… How do you feel about me?" Isabella suddenly blurts out.

He turns around and smiles, "You're a good friend Isabella."

"I see…" disappointed with that answer. "What about the Fireside girls?"

"They're all good friends too." Phineas replied, not getting into what she was hinting.

She sighs. "What do you think of me and the Fireside girls?"

He frowns. "I… I'm not sure I understand."

"How would you compare me with the Fireside girls?" She rephrased the question. It was her mission to find out how exactly Phineas feels towards them.

"I see…" He smiles and heads over to her window. "Well, you're both great friends…" he starts off.

"I see..." She replies looking down, with a hint of sadness in her voice.

"… But, you are a special case." He continued.

"Huh?" She looked up, appalled. She thought she heard Phinea's confession, but she kept listening to make sure.

"You've supported me since the beginning. You always had my back. You are there when I'm at my darkest hours and cheer me up." He looks at Isabella and smiles. "Not only that, you are the most terrific friend that I could rely on. I don't know what all these summers would be without you, Isabella."

Isabella's heart clenched. She was feeling tremendous amount of love for Phineas. Isabella has been there all these times for him, but this time he was there for her.

They walked to the front door of Isabella's house. Before Phineas took off, Isabella spoke up. "Thank you, Phineas. That is exactly what I wanted to hear." Phineas turned around to say "no problem" and to say "see you later", but then as he faced Isabella, the unexpected happened, well at least to him.

Isabella kissed him on the cheek. She put her hand to her hair, blushing. "See you later, Phineas." She giggled. Then she closed the door.

Phineas stared at her door. He couldn't believe what happened. He slowly put his hand to his cheek. "Isabella…"

Ba Bump. What is that I'm feeling? Ba Bump. He placed his hand over his heart. It was racing. At that moment, he knew he started to develop feelings toward Isabella.