Mother-of-two Samantha Ciotta, 32, is alleged to have had a sexual relationship with the 14-year-old pupil over a period of several months.
Ciotta, who was the boy’s teacher at Beaumont High School in Beaumont, California, was allegedly seen in a Snapchat video posted by the boy where she was wearing nothing but a shirt and underwear.
A student who watched the video is then said to have asked the boy if the woman in the clip was their teacher.
He apparently replied: ‘Yes… Bro, I’m gettin’ in deep… been f****** (Ciotta) and getting threesomes for the past couple weeks (at her house).’
The student told an adult what the boy had told him and Child Protective Services were notified and Ciotta was arrested.
A search of her home turned up a ripped-up note addressed to her husband containing details of her relationship with the boy.
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A relative who cares for the teenager, whose mother is dead and whose father is in prison, described Ciotta as his “advocate”.
Ciotta was arrested in September but may now face additional charges as a result of the video because of it allegedly featuring other students.
Ciotta’s husband has filed for divorce and now has sole custody of their two children.
It is not clear who the boy is being cared for as the relative who was looking after him has been investigated for child neglect after he spent months living away from home after running away.