A/N: At first, as usual, thank you, Dreadwing216, Bethany Tucker, spokensoftlywrittenloud, Gigglebox15, The Pharmacist of Drusselstein, POI, THE TATTOO ARTIST and HappyB-day Julia for your reviews!
Enjoy my new chapter!
I don't own
Phineas and Ferb.

Phineas and Isabella were doing volunteer work in a nearby orphanage. They started a couple of years earlier, and currently, they were familiar with every single kid. They also had very good contact with the staff, and were maintaining the friendly relations.

They absolutely loved this job. Phineas was having fun with boys, building various things with them, being a referee for their matches, joking and laughing together.

Isabella was spending time with the girls, dressing up dolls with them, chatting and drinking imaginary tea from tiny cups on their specially arranged get-togethers, pretending to be English ladies.

They were also doing many things together. If kids asked, they would always sing something together for them. In fact, they had to do so every time, as all the children loved listening to "Summer Belongs to You!". Also, if younger children couldn't sleep in the afternoon, they would sit next to their beds and quietly sing a lullaby in perfect unison. Always improvised, their songs were loved by kids. And nothing could make Phineas and Isabella more happy than seeing the smiles and the hugs given them when they said goodbye.

They both enjoyed observing each other while at work. However, they were unaware of being observed by the other person.

Isabella's heart melted when she saw Phineas hold a crying child in his arms, whispering words of comfort, and then smiling widely, seeing the happy kid running to friends again.

She forgot everything around her when he told the fascinated boys about his own childhood, and his and Ferb's inventions. In his stories, he always mentioned her contribution, smiling at her, and she couldn't help blushing slightly. Then she was usually snapped out of it by impatient girls, who were holding their cups of tea and waiting for her opinion about recent events in some made-up lord's residence.

Phineas would always smile and stop whatever he was doing when he heard Isabella talking to quarreling children. She was giving them motherly advice, helping to solve a particular problem. When they made up, she always ruffled their hair and told them to go and have fun together.

He also loved when she was praising the girls when they proudly showed their dressed dolls to her. She was always exclaiming exaggerated words about how wonderful they were.

There were actually tons of examples of her behaviours that he loved. As the years passed, he had to admit that he did have a crush on his best friend. However, it happened after a very long discussion with himself, because he was kind of freaked out by the fact that he fell for the girl who had always lived right across the street.

Despite his anxieties, he tried to give her some hints. Her reactions were always positive, but then she always had her brows furrowed, literal question marks in her eyes, and it was making him terribly uncertain.

Those things were flowing through Phineas' mind as he watched and refereed a match. As he was wondering, he realised he hadn't seen Isabella for a while. As soon as the match ended, he congratulated both teams for a good and fair game, then went off to look for her.

He found her inside, sitting on the floor, leaning against the wall and reading a book to a big group of little kids. She was just finishing the chapter. As soon as she did, she closed the book and stood up.

"All right guys, that's it for today. I hope you liked it!" she said, smiling broadly.

Phineas came up to her and gave her a friendly pinch on the side, making her giggle, then put his arm around her shoulders.

"Hi Isabella, what'cha doin'?" he asked.

"Oh, I've just finished reading," she said. Then she stared somewhere and started wondering about something.

"Why do you always do that?" he asked.

"Do what?" she asked, surprised by the question.

"Wonder. Whenever I do something... um, untypical, you smile or giggle, but then you seem to think about something."

Isabella started to think whether she should just simply ask him. She decided that if he had brought the topic up, there would probably never be a better opportunity.

"I was wondering what you mean by those... untypical things," she said.

He kept silent for a while. "Have you ever done anything like these untypical things towards someone?"

Isabella remembered every single time she did such things towards him.

"Um... Yes," she said, her face reddening a bit.

"And what did you usually mean by that?" he asked. He decided to explain his behaviour to her at that very moment. It had to happen eventually.

"Well... I'm telling you because you're my best friend. I was trying to show that I had a... crush on that someone," she said, not looking at him.

Despite the fact that "best friend" somehow upset him, he didn't change his mind. He was going to tell her.

"Exactly," he said quietly, and looked at her.

She seemed to be processing what she had just heard. After a few seconds, she turned her head to face him; disbelief in her eyes.

"What?" she literally whispered.

"You know what, you just don't want to believe it," he said, and pulled her closer.

"I don't want to believe it? Of course I do!" she said, subconsciously putting her hands on his chest.

"Well, then... Isabella. I. Am. In. Love," he said, closing the distance between them with every word he said. He brushed his nose against her cheek and whispered in her ear, "With you."

He leaned back, just to see her reaction, and noticed pure delight on her face. They smiled very broadly at each other. Isabella put her hand on his cheek.

"So many years I've wanted to hear that," she said quietly, "and it was totally worth it."

They embraced each other very tight, never wanting to let go. Time was slowly passing, and they were just standing there, happy in each other's arms, feeling how incomplete they had always been without the other.

Phineas gently pulled her just a bit closer as he leaned closer to her lips. Isabella's heart started beating incredibly fast as she saw that, but out of the corner of the eye, she noticed something else.

"Um, Phineas?" she said uncertainly.

He stopped leaning, startled.

"The kids," she whispered.

Phineas looked into his left and noticed a group of little children watching the two curiously, with wide eyes. Phineas and Isabella, still embracing, and the kids blinked a couple of times in silence. Phineas cleared his throat. The awkward silence seemed to last forever.

"Why did you pinch Isabella?" one girl finally asked.

Isabella snorted with laughter into Phineas' arm, while he raised his eyebrow, and started to think about an explanation.

"Well, you see... it was... um, playful," he said uncertainly.

"Pinching is wrong," the child differed.

"Sometimes, it depends on the situation, Lucy," he explained.

She didn't seem to be convinced, so Isabella decided to join the discussion.

"Lucy, I am perfectly fine, Phineas did nothing wrong, you see?" she said calmly. "And now, if you'll excuse us, we'll be right back," she said, grabbing Phineas' hand and heading towards the door.

"They're going to kiss," one child whispered in a conspiratorial way as they were walking across the room.

"Those kids are definitely too observant," said Isabella, walking into the corridor as Phineas held the door for her.

"Yes, yes they are," he said and closed the door. As he did that, they embraced again and kissed passionately. Impulsive at first, their kiss began to become slower and more gentle, so that they could enjoy every second of it.

After a while, they broke the kiss. They kept silent, smiling broadly, and soon Isabella spoke up.

"All right, I guess we should go back to them."

"Not yet," he said, burying his face in her hair and embracing her tighter.

She caressed his back, sighing with content. After another while, they let go. They walked up to the door and heard muffled whispering and steps rushing away from the door. They smirked to each other.

"Let's give them a while," Isabella said, and after a moment, Phineas opened the door. All kids were sitting as they had been, with innocent looks on their faces.

"I could have sworn I heard some noises," Isabella said loud, a trace of laughter in her voice.

The kids remained silent.

"Well, we know that you already know, so I guess I can do this," said Phineas, and dipped Isabella suddenly.

"Phineas!" she exclaimed with laughter.

"What? They know," he said and grinned.

"Ah, what the heck! You're right."

And they kissed again.

Hope you liked this chapter! Please, leave me a review!
And guys, you probably know it, but
Phineas and Ferb is ending. I must say, I'm kind of happy that they didn't force themselves to create more and just left this show as wonderful as it has always been. Still, I know that for all of us, it's been the best cartoon EVER!
ElleFreak is out, peace!