Shannon Fosgett, 44, is accused of having the inappropriate relationship with a male student at Murrieta Valley High School.
The relationship began with after-hours texting and escalated to a sexual relationship involving intercourse and oral sex, according to a press release issued by police.
Fosgett resigned from her job Wednesday, shortly after the news was brought to the attention of school administrators by other students.
MVHS teacher is on administrative leave pending the outcome of a police investigation. Read more at https://t.co/uz7qAO3Swg— MurrietaUSD (@MurrietaUSD) December 2, 2015
Fosgett turned herself in to the Murrietta Police Department Friday, where she was arrested and charged with one count of unlawful sexual intercourse with a minor under 18 and two counts of oral copulation with a minor.