Khloe Kardashian has allegedly prepared divorce papers for Lamar Odom, but why hasn't she taken the final step to begin the legal proceedings?

Khloe is reportedly afraid Lamar's rumored drug addiction with cause him to overdose, according to gossip blog PerezHilton.com.

"We're hearing rumors that even though Khloe believes that a divorce is 'inevitable,' she's actually TOO AFRAID to file for divorce because she fears what could happen to Lamar - particularly, a lethal overdose," the gossip site reports.

Khloe revealed on her family's reality show "Keeping Up With The Kardashians" that Lamar suffers from depression because of his "past issues."  She's reportedly afraid a divorce would be enough to bring him over the edge.

However, RadarOnline reports Khloe has secretly met with lawyers to prepare for a divorce.

"Within the last two weeks, Khloe instructed her lawyer to have divorce papers drawn up," a source told Radar. "All she needs to do is tell the lawyer to file the petition. She has even signed the divorce papers, in anticipation."

Even though the couple has been dealing with marital problems, Radar reports Khloe and Lamar have kept in contact throughout their rumored separation.

"He still talks to Khloe everyday, but his drug addiction is running and ruining his life," an insider said.  "He loves the drugs more than anything else, including his wife. He refuses to give it up. Sadly, the only thing that matters to Lamar is partying."

All Khloe wants is for Lamar to get help for his apparent drug addiction.  However, she's reportedly had enough of the cheating allegations and the crack cocaine use rumors. 

During the couple's last reunion on Oct. 1, Khloe allegedly found Lamar's crack cocaine stash amongst his belongings.  However, it is unclear is Lamar had the drugs on his person or in the house.

"Sources close to Lamar tell us Khloe went ballistic, calling Lamar a 'liar' and telling him, 'I'm done with you.' Khloe then threw him out of the house," TMZ reports.