seduction

Definition from Nolo’s Plain-English Law Dictionary

The use of charm, promises, and flattery to induce another person to have sexual intercourse outside of marriage, without any use of force or intimidation. At one time, seduction was a crime in many states, but seduction is no longer criminal (unless the seduced person is underage or otherwise unable to consent). However, seduction does linger in the criminal codes of some states.

Definition provided by Nolo’s Plain-English Law Dictionary.