Especially considering TMZ released a surveillance video of Tristan kissing and motorboating two other women in October 2017 (when Khloe was three months along in her pregnancy). One woman makes out with him while the other forces his face into her breasts.

"They were talking and being around each other all night", said the source. According to the Daily Mail, Thompson was seen getting close to someone in a Manhattan bar over the weekend.

The Shade Room then posted photos via Instagram on Tuesday, April 10, of the basketball pro and what appears to be the same woman walking to his Four Seasons NYC hotel on Saturday.

The drama could spell the end of Thompson and Kardashian's 19-month relationship.

Blair, who has 363,000 followers on Instagram, recently set her profile to private.

Neither Khloe nor Tristan have commented on this report.

Cleveland Cavaliers player Tristan Thompson was filmed getting close with a mystery woman - despite girlfriend Khloe Kardashian being just days from giving birth. But, how is Kardashian dealing with the news that her man is under fire for cheating? "I have the best job in the world...." But first, the Keeping Up with the Kardashians star has a few things she's like to get off her chest.

"After the living hell that Khloé had to deal with while married to Lamar with the constant cheating, her sisters had wanted her to date a non-athlete."

"Of course I'm a little nervous to go into labour, but I'm trying not to overthink something that literally happens all the time", she added. "She wants some time to take it all in and to catch her breath for as long as she can - this is precious to her".