prostitution in DEVIL MAKE A THIRD:

page 29: 

"What the hell," he said, "it's pretty good to have a  place to go, though. When you got to have it, I mean."

page 30 (end of SECTION 1~ Chapters 1, 2 and Interlude 1):

"Look at him," he said, "he don't look much like he did that night we took him down to Mabe's."

"Remember how he goggled at them curtains and couldn' keep from lookin' at hisself in them mirrors? Until the girls come in."

They laughed and slapped each other on their backs and Jake hollered.

"Jake, them's white girls," he said, mocking Buck's slow tones and his breath exploded.

They were still laughing when Buck opened the shutters and smiled at them.

 from page 41: 

He gazed around, gravely studying the purple velvet draperies between the dining room and the vestibule. He slapped  his thigh softly as he looked at them remembering the awed face of a young brakeman who was feeling velvet under his fingers for the first time. He caught sight of himself in one of the two full-length mirrors and tilted his head to see better, then he reached out one foot to push a goat out from between him and the mirror.

"Get away," he said, and raised his head up to holler for Mabe. "Hey, Mabe! Company."

He stared up the stairs as if he expected someone, but no one came, so his eyes drifted back to the peach-colored vase that held Mabe's walking sticks, He wished he had a big vase for his papa. And a newel post to put it by. 

page 42:

"Even a whore has got feelin's," Mabe rumbled, slowly, "and if a fellow can't earn the name of a gentleman in a whorehouse, he won't get it nowhere."

page 44:

"Hell," Bascom said, when Jake got close, " I heard you was dead."

"I mout as well be," he said. "Them Albany girls got my money and Buck Bannon's got my watch."

Page 95