bobbi kristina brown cocaineWhitney Houston's daughter Bobbi Kristina Brown has fired back at a National Enquirer cover story alleging Brown snorted cocaine at a party at the age of 17.

Bobbi Kristina (picture here with Houston), is Houston's only daughter with Bobby Brown. She turns 18 on Friday. The Enquirer photo spread shows Bobbi Kristina snorting a white substance

The singer's daughter wrote on Twitter that "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."

According to RadarOnline.com, the Enquirer article (not available online) quoted Bobbi Kristina's ex-boyfriend as saying, "Krissi is addicted to cocaine. I've tried to stop her, but all she said was, 'I'm just like my mother!'"

Sounds fishy, particularly when paired with Bobbi Kristina's long and sincere-seeming Twitter explanation. Read it all after the jump >>