A Father

As a child I had a recurring dream that I would meet a girl and ask her who her father was and she would show me and I'd say, no, that's my father.

When I was about 20 I visited my biological father and he told me all about his wonderful daughter Cathy. "She never had a father," he said. I couldn't believe I was listening to my biological father describing her as never having had a father. What about me? 

Cathy was the new adult daughter he inherited from his third wife, the first of her 3 marriages.