By Amber Goodhand - Radar Reporter
Chicago Bears quarterback Jay Cutler is planning on marrying Kristin Cavallari, but according to a Star magazine exclusive he may want to take another look at his future in-laws -- particularly his father-in-law, Dennis Cavallari.
The 25-year-old reality-TV star's father has been living a double life filled with greed, lies and adultery, and now his mistress of five years is coming forward to expose him.
"He told me he loved me and even lied about not being married in a desperate attempt to continue our relationship," Tracy Sill, from Orange County, Calif. told Star in an exclusive interview.
"When Kristin discovers the truth, she will see her father for what he really is: a philandering, sex-crazed cheat."
Star obtained numerous emails and text messages between Dennis and Tracy confirming their relationship, but most are too sexually charged to print.
"He told me he was addicted to Viagra and marijuana. He talked about us being together, moving to Florida and having a future," Tracy said.
But once Tracy found out Dennis was married to Kristin's step-mother, Nicole King Cavallari, she broke up with him and reached out to Nicole to spill everything, but Dennis and Nicole stayed together!
"I'm…a mess, can't you see that?" Dennis said in a dramatic text message to Tracy on April 1, 2011.
"He's extremely manipulative and completely unstable, with zero empathy," Tracy said.
"I'm not sure if Kristin knows her father is a cheater, but I think she definitely knows the financial trouble he's in, and I doubt she's told Jay. He's in for a surprise when he finds out about the family he's marrying into. It's a dysfunctional family full of lies and deceit."
To read the full story, check out the new issue of Star magazine -- on newsstands Thursday.