China, october 2009. North West of Yunnan province.
Hong Po, in the mountain at 2500m high, is a tibetan village of 900 inhabitans (100 families).
Miss Song Gi Nam, 61, is tibetan like her three husbands, all brothers. The tradition allows a woman as well as being married to her partner of choice, to wed his siblings in a polygamous union, in order to keep the patrimony undivided. She married the three brothers, Bian Zhu, 73, Piam Mu Duoji, 66, Zhi Xi peng Zun, 59.
One of her son, Sinam Duoji, 38, son of the eldest brother Bian Zhu, and his wife, Sim, 37 live with them and help in the farming work. Sinam Duojin answering to PZ's question, feels that he got three fathers.