Khloe and Kourtney Kardashian stopped by Mother's Haven in Encino, on Tuesday, and despite Khloe's growing concern over estranged husband Lamar Odom, the starlet was able to crack a smile as she posed for a few shots with her big sis.

In the latest episode of Keeping Up With The Kardashians, Khloe expressed her concern for her estranged husband, who she fears might be hanging with the wrong crowd -- and not making any efforts to better himself following his scary drug overdose less than a year ago. "Ever since coming back from Cuba, I've been so worried about Lamar," Khloe said in Sunday's episode. "I just want to keep him around positive people."

"I am so conflicted," she continued. "I want the best for Lamar, but with everything going on lately there's not a lot of trust there ... Nothing is going to wake him up, that's just the way it is. This is Lamar."

Khloe then chatted about the issues with Kim and Kourtney, who were incredibly supportive. "I'll go over there and talk to him or have Kanye talk to him," Kim offered. "Maybe you shouldn't put so much energy into it. You can't baby him or be his mom." Kourt added in her interview, "When it comes to Lamar, Khloé has given everything and tried everything. There's only so much that she can do."