Future story from me (I'm not sure about this. Please edit- inserting your OCs, include a message.
Spoiler: In this story, I'm a new brother, and Isabella gets a new sister- who has a crush on someone. (No, it's not Ferb Baldtech or Buford.)
Mom: PHINEAS! FERB! CANDACE!
Phineas: I DIDN'T SET THE KITCHEN ON FIRE!
Mom: The kitchen is on fire?
(They come down)
Ferb: Who's that kid behind you, mom?
Mom: This is James- your new brother.
Phineas: New brother? How old is he?
Mom: Ten, just like you two.
Phineas and Candace: Cool!
James: Hi. (Smiles)
The next day at Isabella's house
Isabella: Mom, who's she?
Isabella's Mom: She's Crystal, your new sister!
At Flynn-Fletcher backyard. Phineas: FERB! I know what we're gonna do today!
Ferb: Long story.
Phineas: LET'S BUILD A GIANT ROBOT!
James: Isn't that a little... impossible?
Phineas: That's a possibility.
Isabella and Crystal: Whatcha doing?
Phineas: Isabella (walks over to Isabella), aaaaaaand....who is she?
Crystal: I'm Crystal, Isabella's sister. I'm ten.
Ferb: So is James, our new brother.
James: (Building the giant robot)
Phineas: He's sure...fast.
At Doofenshmirtz Evil Incorporated
Doof: PERRY THE-- (Perry whacks him off the tower.)
Tthe giant robot stomps on him without knowing)
Phineas: This is fun.
James and Ferb: Yes
TO BE CONTIENUED
If you wish to see more stories from me, vistit my RP wiki.