But such, he would sigh, was the natural progression of life.

"If that means there is a natural progression to the physical relationship, I would be in support of it," she said.

Nor can just anyone make the plateau seem like a natural progression from what has gone before.

This was the natural progression, the chain of authority and situation.

What he has done for the Pirates seems like a natural progression.

"Becoming a judge has almost been a natural progression for me."

Well, all right, I guess it's a natural progression, but still.

"I see animals as a natural progression in my work," she said.

For the first time, he has written the script himself, which seems a natural progression.

To go from a small town to a big city is sometimes a natural progression.