She becomes the white sheep of the family.

On rare occasions, an all white sheep can be observed.

Before he slipped out, he said, "You know what white sheep have?

Apparently, it doesn't pay to be the white sheep of the family.

To clear a level, Sven must make all the white sheep disappear.

The female white sheep are entirely passive most of the time and await Sven's attention.

Probably they were white sheep raised for food and wool.

Her father called her the white sheep, always with a gleam of pride in his eyes.

I always was the white sheep of my family.

Little white sheep would be out on the hills.