"They're talking all the time," a source tells Us of the pair. "It's not over yet."
Indeed, the reality star's latest renovations to her new home may be pointing to a possible reconciliation. The Keeping Up With the Kardashians star, 29, has been "building a subterranean basketball court" in her new home, the source says. (The brunette stunner recently purchased Justin Bieber's Calabasas, Calif., residence for $7.2 million.)
"Her installing a basketball court really says something," an Odom insider tells Us. "He thinks he could get Khloe back." (As exclusively reported on March 15, Odom, 34, quit the Spanish basketball team Laboral Kutxa after suffering an injury. He's currently back in the states.)
For more details on Khloe and Lamar's potential comeback, watch this week's Hot Stuff video, as explained by Us Weekly's Entertainment Director Ian Drew and special guest Carole Radziwill -- star of Real Housewives of New York and author of The Widow's Guide to Sex and Dating.
Also in the roundup: Teen Mom stars want Farrah Abraham fired, Gwyneth Paltrow's duet with husband Chris Martin, and much more!