Genesis 19:32 KJV
Come, let us make our father drink wine, and we will lie with him, that we may preserve seed of our father.
Genesis 19:32, King James Version
In context
31 And the firstborn said unto the younger, Our father is old, and there is not a man in the earth to come in unto us after the manner of all the earth:
32 Come, let us make our father drink wine, and we will lie with him, that we may preserve seed of our father.
33 And they made their father drink wine that night: and the firstborn went in, and lay with her father; and he perceived not when she lay down, nor when she arose.