TRIADELPHIA, Ohio — from www.wtrf.com – A Triadelphia woman is behind bars this morning, accused of having sex with a then 15-year-old boy.

35-year-old Diana Lilley is charged with third degree sexual assault after a lengthy investigation.

According to the Ohio County Sheriff’s Department, a deputy responded to an alleged domestic, and after a conversation with the male, learned of an alleged three-year relationship between the 35-year-old and the juvenile.

Lilley was arrested overnight at her home without incident.

She is being held in the Northern Regional Jail.