Sister duos

Christine Papin (8 March 1905 – 18 May 1937) and Léa Papin (15 September 1911 – 24 July 2001) were two French sisters who, as live-in maids, were convicted of murdering their employer's wife and daughter in Le Mans on February 2, 1933.
The murder had a significant influence on French intellectuals such as Jean Genet, Jean-Paul Sartre, Simone de Beauvoir, and Jacques Lacan, and was considered symbolic of class struggle by leftist polemicists. The case formed the basis of publications, plays, and films, as well as essays, spoken word, songs, and artwork.

Abigail Loraine Hensel and Brittany Lee Hensel (born March 7, 1990) are American conjoined twins. They are dicephalic parapagus twins (having two heads joined to one torso), and are highly symmetric for conjoined twins, giving the appearance of having a single body without marked variation from typical proportions. Each has a heart, stomach, spine, pair of lungs, and spinal cord. Each twin controls one arm and one leg. When they were infants, learning to crawl, walk, and clap required cooperation. They can eat and write separately and simultaneously. Activities such as running, swimming, hair-brushing, playing piano or volleyball, riding a bicycle, or driving a car require coordination.
The twins' lives have been covered in the popular media, including Life magazine and The Oprah Winfrey Show. They were interviewed on The Learning Channel in December 2006, discussing their daily lives and future plans. They starred in their own reality television series, Abby & Brittany, on TLC in 2012.Since 2013, the two have been teachers in Minnesota.