S4, E13: Dee Dee starts layin' down the Judo on Dexter, then Dexter learns how to fight back. Dexter falls in love with a new girl at his school, so he makes a deal with Dee Dee that she writes poems for him to say to her, but it starts to get on Dee Dee's nerves. Dexter is forced to take Dee Dee to the zoo, but Dee Dee goes crazy with the animals, especially with an ostrich.