"Oh," she said, her mouth perfect roundness, holding it for a moment.

Here lives an orb-weaving spider, so called because of the perfect roundness of the web it industriously rebuilds every day.

I stared at the perfect roundness of the box.

The wide lapels of her dressing gown gaped, revealing the perfect roundness of one breast.

A narrow aperture had formed in its perfect roundness, a dim, fierce light burning out from the space within.

"The category of perfect roundness is fading," she said calmly.

I would not have noticed its perfect roundness if don Juan had not pointed it out to me.

The feel of it was no novelty, but thrilled her just the same, with its perfect warm roundness, its coarse curly hair.

He wore a crenellated beanie that fit in perfect roundness over his waxed crew cut.