Whitney Houston's daughter has been caught snorting a white powder believed to be cocaine.
According to her ex-boyfriend - who took the pictures - 18-year-old Bobbi is addicted to cocaine, just like her mother Whitney was.
He told National Enquirer magazine: "I've tried to stop her. But all she said was, 'I'm just like my mother!'
"Whitney needs to see what her daughter is doing to herself. If Krissi doesn't stop soon, this addiction to cocaine will kill her."
The shots - which also include a picture of her sitting next to series of chopped out lines of white powder - were taken at a friend's house in Alpharetta, Georgia, the town where she lives with her mother.
The unnamed former boyfriend - who was in a relationship with Krissi for over two years - insists the teenager's substance problems are spiraling out of control.
Recalling one party they went to as a couple, he said: "Krissi was pretty wired. I also saw her kiss a man and drink a 40-ounce bottle of Budweiser."
The magazine also claims she is a marijuana user and heavy drinker.
However, Krissi has refuted the allegation she has a cocaine problem and has accused her ex of setting her up for money because the relationship went bad.
In a series of posts on her twitter page, she wrote: "The pictures - a former very dear person to me did this. Set me up to make it look exactly what it looks like. God will smite them yes.
"But it's really not what it looks like . People will do anything for money which is extremely sad, and I'm very hurt by this."
She also revealed her mother Whitney had been comforting her "to the max" in the wake of the allegations.
The 47-year-old singer confessed to being a cocaine addict herself in a 2009 TV interview with Oprah Winfrey and admitted her and her ex-husband Bobby's drug use spiraled out of control after she starred in hit movie 'The Bodyguard' in 1992.
She said: "Me and Bobby were lacing our marijuana with base. We would buy a kilo. We were not pipe smoking.
"You roll it up and you smoke it in your weed. It's almost like heroin cocaine speedballs but you level it off with marijuana."
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