The troubled couple was seen driving together in a Mercedes SUV on their way to Kris' Calabasas, Calif., home shortly after it was announced that the Jenners have separated after 22 years of marriage.
"Khloe was driving her G Wagon and Lamar was in the passenger seat," an eyewitness tells E! News. "They were chatting as they drove, but seemed serious. They entered Kris' gated community around 6 p.m. and stayed there for several hours."
But the duo didn't just spend time together in the car and at Kris' house, they were seen earlier in day at their marital home in Tarzana, Calif., where Lamar "showed up in the morning driven by a driver," the insider reveals.
"Khloé was home when he arrived, but she left a little while later to go and film the show," the source adds. "While she was gone, Lamar stayed at the house without her."
"When Khloe returned a few hours later, Lamar was still there," the eyewitness says. "They stayed home together until they left for Kris' house around 6 p.m. They definitely seemed civil and like they were putting up a united front," says our source, adding, "Khloé seemed very accepting of Lamar coming over and allowing him to stay at the house all day."
Despite one source telling E! News in September that "divorce seems imminent" for the duo, Khloé has consistently been seen wearing her wedding ring, and she told haters on Twitter to "speculate all you want" while live-tweeting during Sunday's episode of Keeping Up With the Kardashians, in which the brunette beauty opened up about her husband being "in a deep low."
Regardless of Khloé and Lamar's current relationship status, the couple is seemingly putting their differences aside while the entire family is coping with Kris and Bruce's separation.
"We are living separately and we are much happier this way," the Jenners exclusively told E! News. "But we will always have much love and respect for each other. Even though we are separated, we will always remain best friends and, as always, our family will remain our number one priority."
As for the reason behind the twosome's separation?
"It's been coming for a while," a source exclusively revealed to E! News. "Kris is in a good place about it, she accepted it and is very focused on other aspects of her life. Obviously it is very sad for everyone, but it's no surprise and everyone has had time to adapt to this new reality."
And apparently, that reality includes Khloé and Lamar.
Tune into E! News tonight at 7 p.m. & 11:30 p.m. for more details about the Jenners' separation