Blanche Dumas was born on the Caribbean island of Martinique in 1860, to a French father and a biracial mother. She had a third leg attached to her sacrum, and her two primary legs were said to be imperfectly developed. The third leg was without a mobile joint but had a bend in it where the knee would have been. Her pelvis was wider than normal and she had double genitalia as well as a duplicate bowel and bladder. Most remarkably, Blanche had two small rudimentary breasts situated at the junction of the parasitic twin with her own body. Each had a nipple, but they were non-functional. Stories of Blanche all mention her pronounced libido. She moved to Paris later in life and became a courtesan, and allegedly, upon hearing about the three-legged man, dos Santos, who was touring at the same time, she expressed a desire to have sex with him. According to Gould and Pyle, "There were two vaginae and two well-developed vulvae, both having equally developed sensations. The sexual appetite was markedly developed, and coitus was practised in both vaginae."