A 32-year-old Fairmont man facing criminal sexual conduct charges in Nicollet County for allegedly having a sexual relationship with a 13-year-old girl is now facing similar charges in Blue Earth County. Matthew James Martinson was taken into custody in January after allegedly having sex with the girl in a parked car in North Mankato. Authorities later learned that the relationship between the two had been reported to police in Lake Crystal several months before the North Mankato incident. A witness had reportedly seen Martinson and the girl kissing and being affectionate in a van before school, and when the victim was interviewed she allegedly admitted to having sex with Martinson several times in Lake Crystal. Martinson is now faced with five felony counts of first-degree criminal sexual conduct in Blue Earth County, and will make his first appearance in court there on March 8th. His next court date for the Nicollet County criminal sexual conduct charge is March 21st.