Ruth 3:6-9

6And she went down to the floor, and did according to all that her mother-in-law had bidden her.

7And Boaz ate and drank, and his heart was merry, and he went to lie down at the end of the heap of corn. Then she went softly, and uncovered his feet, and laid herself down.

8And it came to pass at midnight, that the man was startled, and turned himself; and behold, a woman lay at his feet.

9And he said, Who art thou? And she answered, I am Ruth, thy handmaid: spread thy skirt over thy handmaid; for thou hast the right of redemption.