Chris Brown 'has fathered a 9-month-old baby girl with longtime model friend Nia, 31'

Chris Brown, 25, has a nine-month-old baby girl with a longtime friend.

The mother is a 31-year-old former model named Nia, TMZ claimed on Tuesday.

The website added that the woman has 'known Chris for several years'.

Sources connected to both Nia and Chris told the site they are 'on very good terms', however they are currently not dating.

The Loyal singer has been romantically liked to model Karrueche Tran for the past four years. However the pair's relationship has always been rocky, and the pair have frequently split before reuniting.

The pair were seen together last month, hand in hand at New York Fashion Week. But back in December, Chris launched a lengthy attack on his girlfriend via Instagram.

After pulling her up on only visiting him once during his four months in prison, he then accused her of 'going on dates with Drake'. 

He added: 'I made it clear to the world who my girl was and and made your life equal to mine even at the cost of me not focusing on my career at times.

'When this relationship first started u knew what it was and even participated in threesomes. I slowed all that s*** down.' 

Before dating Karrueche, Chris was in a relationship with singer Rihanna who he started dating in 2008.

On February 8, 2009, an argument in the Deuces singer's car ended with a physical altercation that left the then-20-year-old Bajan beauty hospitalised with multiple contusions to her face.

Chris, then just 19, turned himself in to police, where he was booked under suspicion of making criminal threats. 

He was charged with felony assault and making criminal threats, before pleading not guilty at his arraignment.

On June 22, 2009, the star pleaded guilty to a felony and accepted a plea deal of community labor, five years' formal probation, and domestic violence counseling.

Chris started dating model Karreuche in 2011 before splitting up in late 2012 when he became romantically involved with Riri again. 

After the couple split in May 2013, Chris resumed his relationship with Karreuche. 

Daily Mail