Although the reality TV star and the rapper ended their brief relationship last year, with Khloe since going on to date basketball player James Harden for seven months, they have recently started seeing each other again, reported the New York Post.
A source said, "Khloe and French Montana are still hooking up but keeping it totally under the radar.
"She's still into French, but she wants to keep it no strings attached. Khloe knows French is a player and doesn't want to get involved with him in that way again right now," the insider added.
Although the 31-year-old reality TV star called off proceedings while her 36-year-old ex Lamar Odom recovered from his near-fatal collapse in a Nevada brothel last year, she is upset that he has started partying again and is reportedly set to move ahead with dissolving their marriage.