104-year-old Qiao Junior (R) grooms the hair of her twin sister Qiao Senior in Zhucheng of Weifang City, east China's Shandong Province Thursday June 18, 2009. Born at dawn of last centuary in 1905, the twin centenarians were recorded in Guinness Book last October as the world's oldest twins. The title's former holders were Japanese Kin Narita and Gin Kanie, born in 1892, who died in 2000 and 2001 respectively.