Kristin Cavallari just dropped a bomb on fans from her reality TV days.
The blonde mom-of-three told Us Weekly that producers offered designer duds to cast members in exchange for better story lines.
She claimed one showrunner 'bribed Lo [Bosworth], Audrina [Patridge], and Stephanie [Pratt] and promised them he would buy them presents if they called me out on camera for doing drugs.'
Scroll down for video
Reality TV bombshell: Kristin Cavallari has told Us Weekly that show runners offered designer duds to cast members in exchange for better story lines, such as calling her out for substance abuse
According to the reality star turned fashion designer, Lo accepted the incentive.
Kristin told the magazine: 'Lo said, ‘Can I have a Birkin bag?’
'She never ended up getting the Birkin, she added. '.You need to get that s*** in writing!'
RELATED ARTICLES
'I was throwing a fit!' Lauren Conrad spills on how The... 
Sexy mama! Kristin Cavallari shows off lacy bra under...
Share this article
ShareKristin, 29, is now married to NFL player Jay Cutler and has been talking about the reality show that made her famous to mark the 10th anniversary of The Hills.
The Balancing In Heels author, who joined the reality series in 2009 during the fifth season, explained to the magazine why she agreed to keep doing the show after the behind-the-scenes deceit.
Behind-the-scenes: According to Kristin, co-star Lo Bosworth, pictured with her left in 2010, accepted the incentive and asked for a Birkin bag. Also pictured, right, is The hills castmember Stephanie Pratt
'I’m glad I went back to it because this time I looked at it strictly as a job and I knew the character they wanted to play, and so I went into it with a completely different attitude and I had the time of my life,' she said.
'I thought it was a ton of fun to play up the villain character and I kept my life completely separate, so I had The Hills life and my personal life.'
Her revealing expose isn't the first of recent shocking reality TV revelations.
Reality TV past: Kristin admitted she enjoyed playing the 'villain character' and kept her life 'completely separate' from her 'The Hills life.' Kristin is seen filming for the show in LA in 2009
Lauren Conrad also recently spoke out about the hit show which aired from 2006-2010.
The 30-year-old fashion designer and author described to Us Weekly one bizarre incident in which she was locked up in a church basement at Heidi Montag and Spencer Pratt's wedding.
Meanwhile, Kristin has been married to her Chicago Bears player husband since 2013, and the beautiful couple share three children together: sons Camden, 3, Jaxon, 2, and 6-month old daughter, Saylor.
Today: Kristin and her NFL player husband, Jay Cutler, have three children together. The celebrity couple are pictured at a gala in Los Angeles in May 2015
ncG1vNJzZmivp6x7pa3IpbCmmZmhe6S7ja6iaKymqLWww8GisWiZoqm2pLjEZmpvaGFtfnp7qqugrKyZo3qErdWao6WZop56pLjAoqSsZZOWwLW5wK2crGV4nrmtv4ybqaKalZl6pbHSop6nnaJisbaw0maqmrFdmbalecOrrKCrXp3Brrg%3D