A 23-year-old Clark County teacher accused of having sex with at least one student has been arrested. Robyn-Lea Gentile was arrested Wednesday and booked into the Clark County Detention Center, where she faces two felony counts of sex acts with a student age 16 or 17, jail logs show. Harney Middle School in Las Vegas lists Gentile as a teacher there on its website. She was a substitute teacher with the Clark County School District in 2013 and 2014, according to Transparent Nevada, which documents state employee salaries. It doesn’t include information past 2014. Police filed the criminal complaint Monday, and the investigation began in December, court records show. Further information was not available this afternoon.