Ashley Roberts says Kimberly Wyatt is her closest friend in the Pussycat Dolls. The pair knew each other even before they formed girl group with Nicole Scherzinger, Jessica Sutta, Carmit Bachar and Melody Thornton and Ashley considers herself “Auntie Ashley” to Kimberly’s kids. She told OK magazine: “I think if you go through anything for a significant amount of time it’s going to bond you, right? Something like the jungle [‘I’m A Celebrity… Get Me Out Of Here!’] or ‘Strictly Come Dancing’ or whatever it may be, it bonds you with these people for years. “I talk to some of the girls more than…