A Florida elementary school teacher has been arrested for allegedly using her own 1-year-old son in sexually explicit videos shared with her ex-boyfriend — who is himself accused of molesting his own daughter, according to reports.

US Marshals arrested Audra Mabel, 34, Thursday for distributing child pornography to her ex Justin Ritchie, 36.

Police arrested Ritchie on March 8 after his 4-year-old daughter reported he had inappropriately touched her “vulva” several times — including with an electric toothbrush — and performed oral sex on her, Newsweek reported.

On his phone, investigators found 10 sexually explicit videos, including ones allegedly depicting Mabel and her 1-year-old son. One clip focused on the child’s genitals, and another included Mabel masturbating while breastfeeding, the outlet reported.

Another reportedly depicts Mabel shoving a camera up her skirt only to later turn the camera around and reveal a classroom full of children.

Investigators say Mabel shot the illicit videos while working as a first-grade teacher in Lansing, Michigan, but sent them to Ritchie in Florida.

She admitted to producing the videos, according to Newsweek.

“Mabel and [Ritchie] also read stories to each other about sex between children and adults,” a criminal complaint states.

She later moved to Florida, but the pair broke up last year after Ritchie refused to leave his wife.

She was hit with federal charges of creating child pornography and sexual exploitation of a child, while state officials are charging Ritchie with sexual assault of a child, according to the Orlando Sentinel.