The interior is always white, with a long and narrow mouth.
"They look like people with long mouths," she said.
He glanced up then, and met my eyes, with a smile hidden in the corner of his long mouth.
And for the first time, her long full mouth made a true smile.
They had very long mouths full of sharp teeth, so it was dangerous to get close enough to try to reason with them.
His long mouth tightened and the ends turned up.
"Not above three or four hundred of them," he said, a smile twitching his long mouth.
There was no smile to her long mouth now.
No more, and his long, mobile mouth shut fast even on that.
The long mouth snapped at the words, biting them off grimly.