Phineasandferb Stories

Piper Cromwell leaves to spend summer at her grandma's house in Danville and the boys next door are creating all sorts of adventures of their own. (Cover not mine.) WAR...

"That's the L/N's Law for ya" "L/N's law?" "Basically everything that can go right will go right" "She's your opposite dude!"...

Isabella has lived across the way from the Flynn-Fletcher boys for years. She knows them better than anyone, maybe even better than she knows herself. She also has ca...

*COMPLETE* Perry thought it was just gonna be another normal day. Sneak away from his family and beat up an evil scientist. Get in and get out. That is, until one of Dr...

When sixteen year old Vanessa Doofenshmirtz takes a job babysitting her friend Candace's younger brothers Phineas and Ferb, she has no idea of the adventure that she's g...

ferb fucks his step brother phineas

When you move from your familiar home to suburban Danville, you didn't expect your summer to be much different or more exciting than it usually is. But over 104 days of...

Isabella's love for Phineas knows no bounds - many often underestimate how far she would go for the sake of his happiness. After all, Phineas was her best friend. She wo...

You have had a crush on Phineas for a while now, and your 'friend' Isabella, always stands in your way. But when you go to talk to Phineas about the ride, something happ...

Set the day after The Night of the Living Pharmacist, Isabella finally earns her emotional bravery patch. But at what cost? A Phinabella story.

Perry turns into a 16 year human teen by Dr.D one day. How will his life turn out? Also Phineas and Ferb and their friends are or close to 11 years old and Candace and...

This story starts with a girl who have blonde hair and unique eyes. She lives on a tall building with his dad and older sister. Suring the past years, she has a secret t...

Phineas and Isabella haven't seen each other since highschool. What happens when she ends up stuck at his apartment with him during a hurricane? Disclaimer I don't own p...

Phineas and Isabella get into an uncharacteristic fight. And even though they both regret it, neither of them will admit they were wrong. And that guilt hardens to hate...

Have you ever wondered what Phineas and Ferb are like as parents? It's just about Phineas, Iasabella, Ferb and Vanessa as parents. I might even add Candace and Jeremey a...

I hope you enjoy!!! Sorry for making this really late!!! I know that this show ended 5 years ago but I suddenly got interested so I hope you like it!!! Enjoy!!! This is...

*COMPLETE* Ferb accidentally mixes up the blueprints again for Doofenshmirtz's new inator which shoots Phineas and Isabella who switch bodies. ...just in time for high s...

X reader oneshots! I do requests, so comment or DM me with the franchise, character and (if you have one) a plot! (Also if you'd like me to change the pronouns for your...

Phineas got to read Isabella's letter when the Un-Retrograde Inator hit Ferb instead. However, he was not prepared for what would result both mentally and literally. Mea...

Isabella is tired of flirting with Phineas in order for him to love her, so now she's going to try something dangerous and that might not work out. She's going to try to...