Khloe Kardashian-Odom’s big sister Kim Kardashian was reportedly “shocked” to learn that her brother-in-law of four years was suffering from addiction to crack cocaine.

A source tells E! News that Kim is being “very supportive” and wants “what’s best for Khloe.”

As we previously reported, Odom returned home Wednesday morning following reports that his addiction had caused a wedge between himself and his reality star wife. Odom was spotted wearing his wedding band, as was Khloe, and sources close to the couple have denied reports that they have separated. They assert that Khloe just wants to help her husband.

The source adds that “Kim would like to see them work it out… She knows how much they love each other. Everyone in the family feels divorce should be the last option."

According to previous reports, Khloe hid her husband’s addiction problems from the Kardashian family up until now.

Odom is reportedly receptive to the idea of treatment, but has not officially decided on a plan of rehabilitation.

Image: NBC