Investigators say that a youth minister sexually assaulted a 15-year-old girl in that congregation.

Detectives say Mellony Lewis confessed to police about the whole thing.

Parents Local 2 spoke with were shocked to learn the former St. Marks United Methodist youth minister was arrested for sexual assault of a child.

"It does make me disgusted but there are people around here that you can't trust and you never know what's going to happen," said parent Ariell Silmon.

Baytown police said it all started four year ago. Investigators say Lewis, then 25-years-old, befriended a 15-year-old girl at the church. She would give the teen rides from time to time as well.

Court records indicate the relationship was stopped three months later when police caught the two in the act in a car.

Lewis was fired from the church.

Fast forward to this week, the victim decided to come forward, police say, because she was worried Lewis had close contact to children at her recent job at the Children's Museum.

"She also found out that the suspect in this case, Ms. Lewis, was working at the Houston Children's Museum so she wanted to protect other kids," said Baytown police officer Edgar Elizondo.

The museum where Lewis used to work released this statement:

"The safety of our children is of utmost concern to the Children's Museum. All employees undergo background checks, drug screenings for employment at the Museum and periodic updates are undertaken. Ms. Lewis is no longer an employee of the Children's Museum and we were unaware of her arrest."

Lewis' bond is set at $30,000.