A 21-year-old Premont man was booked into the Jim Wells County Sheriff's Office Thursday after an investigation into an inappropriate relationship was conducted.
According to Lt. Alan Gonzalez, Roberto Ramirez and the victim met through a mutual friend when the abuse began.
With the US Marshal's Office, sheriff's investigators were able to arrested him and bring him back to JWC.
Investigators interviewed Ramirez.
Ramirez was charged with aggravated sexual assault of a child.