捐精受孕
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捐精/捐卵所生子女与同父异母（或同母异父）兄弟姐妹的相遇
How old should a child be before they meet their half-siblings? While this is an easy question to answer for most, some parents make it unnecessarily complicated.
How old should a child be before they meet their half-siblings? While this is an easy question to answer for most, some parents make it unnecessarily complicated.
