"Mr. and Mrs. Stewie" is the nineteenth episode of the tenth season of the animated television series Family Guy. The episode originally aired on FOX in the United States on April 29, 2012. In this episode, Stewie finds his perfect match, Penelope, and Peter and Quagmire decide to take their friendship to a new level after Lois buys twin beds. According to Nielsen ratings, "Mr. and Mrs. Stewie" was watched by 5.63 million U.S. viewers and acquired a 2.8/7 rating.