TWO young mums who breastfeed each other’s children are encouraging other women to share their milk. Stefani Tatavitto, 23, regularly feeds both her own two-year-old son and her friend Chrystal Klein’s 19-month-old daughter while Chrystal works at a factory. And when Stefani goes on a night out, Chrystal, also 23, returns the favour – nursing both tots as if they were her own. The friends – who met on Facebook five years ago – started their unusual arrangement when Chrystal’s daughter, Ariana, was just ten months old.