Voir Dexter's Laboratory: The Complete Series - Episode 18

"Dee Dee Locks and the Ness Monster" Dexter tries to entertain his ill sister by reading to her out of his science text. Bored by protons and neutrons, Dee Dee uses her imagination to make up a story of her own. "Backfire" In an attempt to shorten future road trips with his family and annoying sister, Dexter supes up the car using antimatter. But Dee Dee accidentally touches the car and is fused into it - becoming the automobile. "Book'Em" Dee Dee's childish behavior causes Dexter to accidentally take a library book home without checking it out. To avoid spoiling his perfect record he must return it. That night, dressed as two ninjas, Dexter and Dee Dee sneak in to return the book.