Together at Last

When Doofenshmirtz's Love-Inator zaps Phineas and Isabella, the impossible occurs: complete Phinbella!

Summary
Phineas and Ferb decide to build a telescope that can see the farthest things away from them. Meanwhile, Major Monogram lets Perry know that Doof has been using dating sites more often and he wants Perry to stop him. Meanwhile, Candace is talking to Stacy that Jeremy invited her to a party. At Doofenshmirtz Evil Inc., Doof traps Perry and unveals the Love-Inator. If it shoots two people of the opposite gender, they instantly fall in love. However, Perry escapes and causes Doofenshmirtz to fire the Love-Inator at Phineas and Ferb's backyard, just as Isabella walks towards Phineas saying "Whatcha Doin'?" As soon as it shoots them. Phineas destroys the telescope and walks towards Isabella with hearts in his eyes saying, "You know what? I don't care about this telescope anymore. I care about you now, Isabella." As soon as she hears this, Isabella just faints. Later, when she wakes, Phineas sings Glitchee Glitchee Goo to her. After the song, Ferb says, "Well don't just stand there. Kiss her!" to Phineas, causing him to kiss Isabella. At Jeremy's party, Candace leaves early to bust Phineas and Ferb, but when she sees the destroyed telescope, she gives up. Back at D.E.I., Perry destroys the Love-Inator. When Mom gets home, Phineas tells her that him and Isabella are officially boyfriend and girlfriend.

Songs
Glitchee Glitchee Goo (Without Ferbette parts)