Khloe Kardashian and French Montana's relationship is "as serious as can be" as the "Keeping Up with the Kardashian" star is reportedly beginning to trust again after her failed marriage to Lamar Odom.

"They're as serious as can be. "Fact is he treats her like a queen and beyond that, Khloe trusts him. That's huge for her," a source told HollywoodLife.

The website said that the Khloe Kardashian and French Montana's relationship wasn't affected by the long distance when she attended Kimye's wedding in France and Italy. She even gave him an ultimatum of cutting down his partying ways while she's away.

"He obliged and they were talking and texting back and forth while she journeyed over to Paris and Italy," HollywoodLife added.

While she had a grand time attending Kim Kardashian and Kanye West's wedding, she couldn't wait "to be back with her boo, in his arms and relaxing and enjoying life," the source told the website.

Before leaving for Kimye's wedding, however, Khloe Kardashian and French Montana's relationship was cemented after they bought matching his-and-hers gold watches at Rafaello & Co.

They also posed for owner Gabriel Jacobs for photos, which means they are no longer keeping their relationship a secret.

"They were very upbeat and happy," a witness told Us Weekly.

Various news outlets reported that Khloe Kardashian and French Montana's relationship is already on another level as she has shacked up on his home, in the midst of reports that Lamar Odom still wants her back.

"Lamar will be devastated and betrayed if she and French have a baby," said the May 5 issue of In Touch Weekly, citing as source the friend of the basketball star who signed on with the New York Knicks.

Her presence in French Montana's neighbourhood, however, is not welcomed, according to Radar Online.

"This is a quiet bedroom community. No one wants Khloe around and all of the ruckus she brings," an insider told Radar, who claimed that her presence in the neighborhood is going to be a "complete nuisance."