Oprah Winfrey never intends to marry fiance Stedman Graham, as his proposal was guarantee enough their relationship is serious.

The talk show host doesn't see the point in marrying her partner of 17 years, but she insists he did ask.

Winfrey says, "A piece of paper does not define a life. I always knew that was not the answer for me.

"I was like most women though. I wanted a man who, I wanted to know he did want it. So I'm telling you, after he proposed, I was over it.

"I do believe that had we gotten married, we would not be together today. The traditional role of marriage would not work in this relationship."