Khloé Kardashian and ex-husband Lamar Odom are reportedly expecting a baby following their recent divorce.
The "Keeping Up with the Kardashians" star was supposedly seeing both the former NBA player and rumored new boyfriend James Harden at the same time.
"The fact is, she would consider being exclusive with James if it weren't for Lamar," an insider told OK! Magazine.
The insider also revealed that Kardashian partied and slept with Odom in Las Vegas earlier this month.
The reality star is reportedly sure that her ex is the father, since she did not hook up with the Houston Rockets shooting guard on that weekend.
"All Khloé and Lamar ever wanted was to have a family," the insider continued. "After getting over her shock, she told friends she couldn't be happier."
The insider added that Odom is thrilled about the unexpected pregnancy: "He's committed to his sobriety and he's vowed to stay on the straight and narrow."
Meanwhile, Kardashian is not the only who has been cheating, as Australian model Rochelle Relf recently claimed that she slept with Harden in June.
"Khloé was with James in Hawaii, then he flew to Australia and spent the night with me," she told New Idea. "He was charming, affectionate -- he asked me to visit him in America and told me he was a single guy."
The blonde beauty also mentioned that the athlete was pressing her for questions on whether or not she was single.
"I don't want to hurt Khloe," she insisted. "But as a woman I think we need to hear these things and she should know the truth. James is very good at making himself out to be a loyal person."
'He is Mr. Romantic and says what you want to hear," she added. "But he is in no way ready to be settling down and it's no secret Khloé wants a family."