(a/n) I am SO sorry for not updating for a while, my electricity was out for a few days, and then the internet took a few days to get going again after that. So this is the last chapter. Hope you enjoy it, sorry for making you wait. I promise I didn't mean to.

One month later

"Hey Mom, is Jeremy coming over for the party? I need to know, because if he is, I have a special outfit picked out. If not, I can just wear my every day day-clothes, but I have some better ones picked out if he's coming. So is he coming?" Phineas scoffed and rolled his eyes over the breakfast table at Kirby. Candace had been worried about who was invited to Phineas's birthday party more than Phineas did, and while it was humorous for the three boys, it was causing a lot of irritation for their parents.

Linda sighed, "Yes Candace, Jeremy is coming to the party. But that doesn't mean you have to put on some special outfit, Jeremy likes you the way you are." But Candace had already dashed upstairs to change clothes. Ferb stifled his laughter behind his hand while Kirby smirked into his cup of orange juice and Phineas chuckled. A sudden hand on Phineas's shoulder made him jump about a foot in the air; he was still pretty jumpy after being kidnapped. But when he turned around, it was just his dad. "Can we talk?" He asked. Phineas shrugged and followed Lawrence into his bedroom, where the latter sat down on the bed and patted next to him as an invitation. Phineas sat.

It was a moment or two before Lawrence spoke, and when he did, he looked awkward. "So. You met your biological dad." Phineas made a face. "Well, what I mean is, do you thing you liked him okay?" Lawrence finally looked at Phineas, who was giving him the most incredulous look he'd ever seen.

"You're kidding right? Dad, he kidnapped me, dislocated my shoulder, tied me up, and left me there. Why would I ever like a guy like that?" Phineas moved to get up, but Lawrence gently pulled him back down again.

"Are you mad at me?" Lawrence continued, looking sideways at Phineas. When Phineas looked confused, he went on, "I mean, I'm your dad – if I'm your dad – so I'm supposed to make sure things like what happened don't happen, and ultimately I failed, so I'm sorry, and I know I'm not your real dad or anything, so if you're mad or anything-"

Phineas seemed to understand what his dad was saying, and it was probably the most ludicrous thing he'd ever heard. Correcting his dad would no doubt be very awkward, but it had to be done. "Daddy." The word stopped Lawrence's ramblings. "You are my dad. Not Leroy, or anyone else, you. If anything, Leroy just made me miss you more. Nobody is ever going to replace you, so you definitely don't need to worry about that. And of course I'm not mad at you, what happened was not your fault. It wasn't anybody's fault but Leroy's. Things like this happen. Don't worry about it, everything's fine now." He smiled at his dad, and Lawrence chuckled. He looked like he wanted to say something else, but he remained silent as he pulled his son into a tight hug. He had been doing that a lot lately.

"Come on," He said as they heard the doorbell ring. "I think that's Brian and Jack." They got up to answer the door, and indeed it was Brian and Jack. "Happy birthday, kid." Brian said as he and his son entered the house. They remained in the living room, answering doors for guests as they came. Buford and Baljeet came in with the latter carrying everything, Isabella attacked Phineas in a 'birthday hug,' and Django waved shyly as he stepped over the threshold.

They all gathered around the table for the traditional round of 'happy birthday,' and as Phineas sat himself down at the head of the table in front of wonderful birthday cake Linda had made, Lawrence couldn't help but smile at him. Yes, he thought to himself, Phineas is definitely my son.

(a/n) The end! It was short. Sorry. But yea. Also, if any of you would like to know, Django is my favorite one of Phineas and Ferb's friends, even if he isn't one of the main characters. I think he's a cutie.