I have had custody evey friday to sunday and weeks at a time through the holidays. Me and my fiancee also have a daughter who is 2 yrs younger than my daughter fron my ex. My ex married someone nearly 2 yeard ago and has recently had his child. She has rexently taken it upon herself to tell my oldest daughter that my youngest is only her half sister yet her new arrival is her full sibling. I happen to know they are both classed as half sivlings as they only share one parent therefor 50% dna. I however would not of felt the the need to hieghten my daughters insecurities with this information, let alone deliver it in such a biased manner designed to hurt my youngest daughter upon hearong thos information from my eldest daughter. They are 5 s 7 FFS