High Quality Content by WIKIPEDIA articles! Abigail "Abby" Loraine Hensel and Brittany "Britty" Lee Hensel (born March 7, 1990) are dicephalic parapagus twins, meaning that they are conjoined twins of whom each has a separate head, but whose bodies are joined. They are highly symmetric, giving the appearance of having just a single body with little variation from normal proportion. In fact, several vital organs are doubled up, each twin having a separate heart, stomach, spine and spinal cord.