A/N: Hey everyone. I'm finally updating this.

For once, it's not Rachels fault, it's mine. I've had this sitting on my desk since Tuesday. Sorry I haven't updated sooner, but I've had to spend massive amounts of my free time at my Grandma's bedside (She has Stage 4 cancer and is only supposed to live 5-8 more days at most. That, and I'm still really lazy.). I'll try to update more often. OKAY, RACHEL??? OKAY???

Also, the next chapter will have a section written completely by moi. I'll try to have that up by later tonight, but I'm not promising anything. It'll be the Doofenshmirtz/Harry Potter (I convinced the Rach-meister to include HP, but, her being HP-impaired and all, is making me write it. I promise it will be extremely random and pretty funny.) part. Also, I'll probably actually be collaborating with her in the near future for the Doofenshmirtz/Perry part because I know nothing about Sonic and she knows nothing about HP. But, who knows, I may be in charge of PTP/HD, and her P&F. Not sure yet, but I'll definitely be in charge of the Doof and anything involving HP.

And, new to the series an Author's Note from Rachel:

"Yes, Maggie attacked me with a paper napkin yesterday. I would write about Spongebob now, but I'm lazy, too. I'll probably write about him in chapter 4 or 5."

And (SPOILER ALERT!) I know for a fact that she won't write about him in chapter 4. How do I know? I'm currently holding the slip of paper that it's written on. And...Nope, no Spongebob. Also, you may have noticed that I moved this. That's because next chapter the X-over count will be 5. So, I moved this to X-overs.

Disclaimer: No.

Warnings: Swearing and a crude saying at the end ('That's what she said.')

By the time Phineas and Ferb got to Home Depot, everyone else was already there.

"Hi Buford, Isabella, Fireside girls, Baljeet." Phineas said.

"Hey! You forgot me!"

"Oh! Hi Peter Griffin!"

"Hi!" said Peter.

"So, you're helping us build a submarine, right?" said Phineas.

Peter, however, wasn't listening. He was staring off into the distance, where something big and yellow was heading steadily towards them.

"Uhh…Peter?" Phineas prompted.

"HE'S BACK!" Peter yelled. For standing right in front of them, was the Big Yellow Chicken.

Peter narrowed his eyes. "I'll be right back."

After the giant fight…

"Okay! I'm ready to shop!" Peter said in a tired out voice.

"Great!" Phineas said. "Hey, has anyone seen Perry?"

Do Bee Do Bee Do Ba…

"Agent P., Dr. Doofenshmirtz has built suck a powerful –inator this time that you need to call a friend to help you. A friend you know will kick his big fat ass!" Major Monogram said.

Perry thought for a moment, then wrote down his friend's number on a piece of paper and showed it to M.M.

"O.K., Agent P., I'll call him."

-Ring

-Ring

-Ring

?- Hello?

MM- Hi. This is M.M., Perry the Platypus needs your help.

?- Hmph! I have better things to do!

MM- Like?

?- Beating the crap out of people and shooting them.

MM- That's what you'll be doing.

?- Oh. Fine, then I'll help.

MM- So, what's your name?

?- Shadow the Hedgehog

MM- OK. Come to this address- (MM gave him the time and address.) OK, bye!

STH- Hmph!

-Click

Perry is crawling out of a box when Phineas spots him. "Oh, there you are Perry!"

"OK, Phineas, we're ready to go!" Isabella said. Just then, she started walking and tripped over a garden hoe. "Dirty hoe!" She screamed.

Everyone stared at her.

"What?" She said.

"That's what she said!" Everyone said in unison, and then doubled over laughing.

Then Peter walks in front of them and said:

"That was chapter 3 folks! Feel free to drop a review! Bye!" Peter went back to Quahog and everyone else went home.