"Middle Sister" is a term often used to describe the dynamics and experiences of a girl who is the second child in a family with three siblings. This position can lead to feelings of being overlooked or less favored compared to the oldest and youngest siblings. Middle sisters may develop unique traits, such as adaptability and negotiation skills, as they navigate their role within the family. In popular culture, the concept of the middle sister is explored in various media, including books and television shows. Characters like Jan Brady from The Brady Bunch exemplify the challenges and strengths of being a middle child, highlighting the importance of family relationships and individual identity.