via Huffington Post:
Abby and Brittany Hensel are unusually close, but that’s bound to happen when you share the same body.
Now the 22-year-old conjoined twins are joining together to star in a new reality show, “Abby And Brittany,” which debuts Aug. 28 on TLC.
Abby and Brittany are dicephalic parapagus twins, meaning that they are conjoined twins who each have a separate head, but share one body.
The two have separate hearts, lungs and stomachs, among other organs, but share the same liver. They also share two arms and two legs. Each twin is responsible for one side of the body, which means they have learned to coordinate movements subconsciously.