Oh, Baby! & Girls Don't Have Cooties

Oh, baby : When Suzanne complains that she's treated like a baby, because her parents won't let her go to the movies, Katie actually becomes Suzanne's baby sister, Heather. When Katie is Heather-she speaks.

Girls don't have cooties: Katie wants to go to Suzanne's sleepover party, but Jeremy wants her to ride the new roller coaster with him. Annoyed, Jeremy and the other boys decide that all girls have cooties. When Katie literally finds herself in Jeremy's shoes, she tries to reunite the boys and girls.