Sister act: Doing the two step, the brunettes named Britain's most identical twins

By Daisy DunnThey are so alike that even their boyfriends struggle to tell them apart. But Ruby and Pearl Day's other halves can be forgiven - especially since the pair were yesterday judged to be Britain's most identical twins. In a nationwide competition, the 18-year-olds were deemed to be most alike in terms of facial likeness, personality and 'dancing synchronicity'.  Who's who? Pearl (