had not known a man ...
Genesis 19:8 Behold now, I have two daughters which have not known man; let me, I pray you, bring them out unto you, and do ye to them as is good in your eyes: only unto these men do nothing; for therefore came they under the shadow of my roof.
When he and the town folk knew they were married?
Genesis 19:14 8 And Lot went out, and spake unto his sons-in-law, which married his daughters, and said, Up, get you out of this place; for the LORD will destroy this city. But he seemed as one that mocked unto his sons-in-law.”
KJV ... did he LIE?
Unless you read the NIV which reads ...
14 So Lot went out and spoke to his sons-in-law,
who were pledged to marry [a] his daughters. He said, "Hurry and get out of this place, because the LORD is about to destroy the city!" But his sons-in-law thought he was joking.
Or maybe they thought he was joking around the first time around also?