Secrets (Requested by bookworm299):

"I have nothing to hide!"

"Oh really, Phineas?" Isabella questions him. "Who do you like?"

Phineas pales. "Okay. So maybe I have a few."

Isabella laughs. "Exactly. I have nothing to hide."

"Oh really?" Phineas says mocking her. "Who do you like?"

This time Isabella pales. "You know we should play a different game."

"Secrets don't make friends." Phineas sings.

"I'm friends with you aren't I?"

"That is one secret I'll never tell."