The reality TV personality has hired famed attorney Marty Singer who immediately filed a lawsuit to muzzle Jaxson.
On Friday, Jaxson told Los Angeles chat show Good Day L.A. that he worked for the E! star from 2007 - 2009 and that her second marriage was staged.
Weathering the storm: Kim Kardashian arrived at Los Angeles International Airport yesterday amid the scandal surrounding her ex publicist
Jaxson said: 'Two weeks prior to her wedding she knew it was not something she wanted to do.
'Unfortunately they were obligated to honour contracts [with the E! network which had TV rights] otherwise they would have owed a lot of people a lot of money.'
According to TMZ, Kardashian is seeking $200,000 in legal damages from Jaxson.
Lawyered up: Kim has hired a famed attorney to try and muzzle her former flack Jonathan Jaxson
Why so shy? The normally camera-friendly star tried to shield her face
As photographers snapped away, the normally camera-friendly star kept her head down and tried to shield her face.
Perhaps her glamorous new cover of the Middle Eastern Haute Muse Magazine will put Kim in a better mood.
Quick trip: Kim returned from a brief stay in Atlanta, Georgia where she filmed scenes for Tyler Perry's movie The Marriage Counselor
Jaxson immediately took to his personal blog to say Kim needs to get her facts straight.
In a statement posted today he says: 'To the best of my knowledge, I have never signed an agreement dealing with confidentiality with Kim Kardashian.
Not a fan: Kim's former publicist, Jonathan Jaxson has called her marriage to Kris Humphries a publicity stunt
Last week during an interview with New York's Elvis Duran and the Morning Show, Jaxson said: 'She's never gotten over [her ex Reggie Bush].'
Kim and 26-year-old NFL star Reggie were the subject of repeated engagement claims throughout their relationship.
The couple dated for around two years before initially splitting in July 2009. Two months later they got back together before ending their relationship again in March last year.
Keeping busy: After her recent trip to Dubai, Kim appears on the cover of Haute Muse magazine
He continued: 'I staged several of the moments that the world has seen of her, such as a ring that we alleged was from Reggie Bush.'
The publicist talked about how he helped generate a fake engagement story between Kim and Reggie in 2007 by setting up paparazzi to take pictures of her leaving a Beverly Hills jewellery store.
She then sported a ring on her wedding finger in public - which Jaxson claimed is identical to the one Kris proposed to Kim with.
Today, Kim was also spotted looking unusually low key in a red hat and oversized sunglasses.
She is reported to have visited music manager Irving Azoff's home in Beverly Hills.
Azoff is now executive chairman of music giant Live Nation.
Driving visit: Kim was spotted looking low key today with a red hat and oversize sunglasses as she is reported to have visited music manager Irving Azoff