Monica Geller altered the trajectory of the entire series, having life-changing effects on its characters. Summarizing the role of Monica in the series, Martin Gitlin wrote in his book "The Greatest Sitcoms of All Time" that while her friends "were ... just out to make the most of their social lives", Monica "sought to keep the others in line" while searching for "Mr. Right", who surprisingly turns out to be close friend Chandler. Several years before Monica and Chandler became romantically involved, Cox once joked in an interview that if her character were to ever have sex with another main character, it
Brother and Sister and at long last the family is reunited, where they lived happily ever after until the end. The first recorded appearance of Brother and Sister is in Giambattista Basile's "Pentamerone" around the 17th century. It was written down as the tale of Ninnillo and Nennella. Since then it has circulated in a number of European countries under varying titles but with most of the main story intact. In Russia the story was more commonly known as Sister Alionushka, Brother Ivanushka, and collected by Alexander Afanasyev in his "Narodnye russkie skazki". In the Aarne–Thompson classification system of fairy tales, Brother and