CAUTION: The story you are about to read has lots of awesomeness and Phinabella. It could be hazardous to your health. I sit in my room looking out the window at Phineas and Ferb's backyard. I sigh, staring at Phineas. Suddenly I hear a knock at the door. I open it to find a teenage girl that I... don't... know. At all. "Hey, sis!" she says, smiling. "Wh- who are you?" I ask, slowly stepping back. Sis? I don't even have a sister. "Didn't Mom tell you?" she asks. I shake my head slowly. "Oh my gosh, I'm so sorry. I thought she did. Let me go get her," she says. The strange girl runs downstairs and returns a moment later with my mother. "Isa, I am so sorry I did not explain to you. I was making fajitas for the book club and... well, I'll just tell you," my mom says.