Nicole Marie-Faires Andrews, 31, was charged by cops on Tuesday for striking up an illicit sexual relationship with a child she met at the Texas church.
Officers began investigating the alleged tryst in October while Andrews worked as a youth administrator.
A Church at Canyon Creek spokesman said it would not comment about the about the allegations, but has emailed members over the claims.
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Following reports about the relationship, the Cedar Park Middle School English teacher was placed on leave by headteacher Sandra Stewart.
In a letter sent out to parents, she said her decision was based on allegations that Andrews had a relationship with a high school pupil.
Andrews has been charged with the sexual assault of a child – a second-degree felony.
If found guilty she could be caged for up to 20 years.
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The allegations come after Samantha Fitzpatrick, 28, was arrested following allegations she had a sexual relationship with a 17-year-old boy at Ripon High School.
She swiftly resigned from her post as rumours circulated she “had done stuff” with the teen at her Wisconsin home.
Cops were later tipped off about the alleged tryst, which led to another teacher she had confronted Fitzpatrick about the romp.