Dear Aliph, thank you very much. Your words touched me so deeply. I agree that it’s true for many people but hardly ever in my case, as my parents divorced I was 4 years old and my father left St.Pete to Ukraine. 

He was trying to be in my life but it wasn’t possible for some reasons until I became an adult. He perfectly speaks in Russian:). 

Thank you very much for sharing, Wei. When looked your profile some time ago, I had a question in my mind related to this kind of issue:) 

Natalia, isn’t it the voice of love rather than the voice of blood you are speaking about? Your father probably is one of the persons of whom you have fond memories. It is the man that was there when you were born and not just the one that conceived you. I bet your father has/had a beautiful voice.

Having grown up in a multicultural family myself, I have similar experiences. If I take care of a child for instance, I may speak a different language according to his age. With a baby I probably will speak the language my mother spoke to me. With a toddler the language of my father will appear, since it is obvious that fathers are more prone to play with their children once the children are able to walk and to speak a little.