A more thorough explanation:

Definition: Lewd and lascivious cohabitation refers to the act of an unmarried man and woman living together as husband and wife and engaging in sexual intercourse. It can also refer to the living arrangement of a man and woman who are not married to each other and live together in a way that is questionable on social grounds.

Examples:

• An unmarried couple living together and engaging in sexual activity.
• A man and woman who are not married but live together in a way that is considered inappropriate by society.

These examples illustrate the definition of lewd and lascivious cohabitation by showing situations where individuals are living together in a way that is considered morally questionable. In both cases, the individuals are not married to each other, but are living together as if they were. This behavior is often frowned upon by society and can lead to legal consequences in some cases.