He saw her teeth catch her Underlip as she bent over him.
"The Locusts' Years"
Mary Helen Fee
He hurried to the doorway and stood in it, chewing his Underlip, as he watched the road-weary, weedy beasts and their drovers trail out of the town.
"The Pioneers"
Katharine Susannah Prichard
I said what I could about them, and my companion, looking at them as I held them up, sat perfectly still, with her straw fan raised to her Underlip.
"Four Meetings"
Henry James