Freed inmate Cyntoia Brown — who spent 15 years in prison for killing a John when she was a teenage sex trafficking victim — has married Christian rapper J. Long, her rep confirmed on Monday.

A series of photos posted on the musician’s Instagram show the newlyweds canoodling, with Brown, 31, wearing a white dress and a big rock on her perfectly manicured hand and Long rocking a powder-blue suit.

The pair also have on matching silver cross necklaces, in the images posted Saturday during Brown’s first weekend of freedom.

Texas-native Long was a member of the 1990s hip-hop group Pretty Ricky before breaking out on his own. He’s the grandson of guitarist Curtis Long, who played for B.B. King and others, according to The Tennessean.

It’s unclear how the couple met or when exactly they were married. Brown’s publicist Wes Yoder would only say “they will tell the rest of their story later this fall.”

Brown’s memoir, “Free Cyntoia,” is scheduled to be released Oct. 15 through Atria Books.

The former convict was released Wednesday on probation, after being granted clemency in January by former Tennessee Gov. Bill Haslam.

Her case drew the attention of a slew of celebrities including Kim Kardashian West, Rihanna, Snoop Dogg and LeBron James, who all lobbied on her behalf, calling out a criminal justice system they said enabled sex traffickers while discarding victims.

Brown was 16 when she ran away from her adoptive family and began living in a motel with a pimp nicknamed Kutthroat, who raped her and forced her into prostitution, court documents and local reports said.

In 2004, 43-year-old Nashville realtor Johnny Allen picked the teen up for sex — and she fatally shot him out of fear that he would kill her, the documents say.

Prosecutors argued her motivation was robbery since the teen swiped Allen’s wallet and gun after shooting him. She was tried as an adult and sentenced to 51 years to life for first- degree murder, aggravated robbery and prostitution.

While in prison, Brown earned two degrees and mentored other female inmates.

In granting clemency, Haslam, a Republican, blasted the life sentence handed to Brown when she was just 16 years old as “too harsh,” citing the, “extraordinary steps Ms. Brown has taken to rebuild her life.”

“Transformation should be accompanied by hope,” he said.

As part of the conditions of her release, Brown will remain on parole for 10 years and must take part in counseling sessions and get a job or continue pursuing her education.

With Post wires