I have a half brother. Had a half sister until cancer took her away a few years ago.

We never called it half. This is my brother or sister.

My stepdad came into my life at 7 years old. They came after that. He was and is more of a dad to me than my real dad.
94 years old now and one of the greatest people I have ever known. Treats us all the same, whether he was the sperm donor or not.

I guess we had the advantage of all growing up in a loving household! Meeting each other as stranger's at 30 years old like some of you, may have been more of a challenge.