The 29-year-old pulled her fiercest pout to pose alongside Kendall for a black and white picture, uploaded to Kendall's social media account on Tuesday (17 December).
Khloe and Kendall wore matching 'K Gang' baseball - very appropriate!
News broke over the weekend that Khloe had filed for divorce from husband of four years Lamar Odom, just a few days after she was seen without a wedding ring at a Hollywood red carpet event.
Khloe and Lamar married in 2009 following a whirlwind romance of just one month and, while many critics thought it wouldn't last, they had appeared blissfully happy until earlier this year.
Neither Khloe nor Lamar have shed any light on what exactly went wrong in their relationship, but rumours have been circulating that Lamar was battling substance abuse issues.
Earlier this month, Lamar was handed three years' probation and told to attend three months of alcohol education classes following a DUI incident in August.