Bobbi Kristina Brown 'confirms her engagement' to brother-turned-boyfriend Nick Gordon

In August Bobbi Kristina Brown was given a ring by her brother-turned-boyfriend Nick Gordon.

The giant sapphire stone surrounded by diamonds which Bobbi placed on her ring finger sparked rumours of an engagement, which the couple denied claiming the ring was just a gift.

However footage taken from the 19-year-old's reality show, entitled The Houstons: On Our Own, has allegedly confirmed that she is in fact engaged to Gordon.

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According to reports on E!Online in the exclusive clip Bobbi, daughter of late singer Whitney Houston, shocks her family when she tells them of her plans to wed Nick.

The website claim that Brown announces the news as she laughs, saying: 'We're engaged!'

In another trailer for the Lifetime show, family members of the Houston clan are seen worrying over Bobbi's relationship with Nick.

During the clip Gary Houston, Whitney' brother, appears to disapprove of their bond, as he has a heated discussion with Gordon.

He says: 'No one knew that from a godson you would turn into a boyfriend. No one knew that.'

With the 22-year-old stating: 'The family has me out to be a bad person.'

And determined to make her family accept her blossoming romance, Bobbi firmly asserts: 'They want to see us fail. We won't.'

Bobbi and Nick lived together as siblings for more than a decade before Whitney's death in February, with Nick considered to be the superstar's unofficial adopted son.

She took him into her home when he was just 12 after his father went to prison and his mother was unable to take care of him.

However, following Whitney's passing - having died at the age of 48 due to an accidental drowning complicated by heart disease and cocaine use - the controversial pair grew closer.

Set to premiere on October 24, the show follows the Houston clan including Pat, Whitney's sister-in-law and manager, Pat's daughter Rayah, Whitney's brother Gary, Bobbi Kristina and Grammy Award-winning singer Cissy Houston in the aftermath of the pop superstar's tragic death.

'Pat Houston, Whitney's sister-in-law, manager and most trusted confidant, manages the business and estate of the beloved singer and her most prized possession, her daughter Bobbi Kristina,' said a Lifetime press release.

'The series will follow Pat and her husband, Gary, Whitney Houston's brother, as they take on their greatest challenge, supporting and guiding Bobbi Kristina as she faces the world alone, without the one person she relied on the most, her Mother.'