Dark matter is theoretical.
`` Labor Pains '' is the fifth episode of the 25th season of the American animated sitcom The Simpsons , and the 535th episode of the series .. 25th season. The Simpsons ( season 25 ). animated sitcom. animated sitcom. The Simpsons. The Simpsons. It originally aired on the Fox network in the United States on November 17 , 2013 .. Fox network. Fox Broadcasting Company. It was written by Don Payne and Mitchell H. Glazer and directed by Matthew Faughnan .. Don Payne. Don Payne ( writer ). Matthew Faughnan. Matthew Faughnan. In the episode , after a night of playing poker with Moe , Lenny , and Carl , Homer finds himself in an elevator with a young mother named Gretchen , who is in labor and needs someone to help her keep calm .. Meanwhile , Lisa helps the local football cheerleading team unionize and negotiate for better wages and working conditions .