The source who provided the video said Thompson and the woman were making out all night.
After everything Khloe went through with ex-husband Lamar Odom, this is the last thing she needs to be dealing with just days before the highly anticipated arrival of the newest Kardashian crew member.
Neither Tristan, Khloe or the Kardashians have yet to comment on the reports.
In the clip, the woman can also be seen draping her arm around the baller's shoulder and pulling him in.
Khloé shared her excitement in joining the crew in a statement to Entertainment Weekly, saying: "I am so excited to be bringing you Twisted Sisters".
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Robben all but sealed the title after the hour-mark when he fired inside the right post after James kept the ball in play. Ancelotti was sacked by Bayern at the end of September following a 3-0 Champions League defeat to Paris Saint-Germain.
Check out the surveillance video of the Cavaliers star in a white hoodie, with the woman strolling behind him into the Four Seasons early Sunday, around 5 AM.
The clip, said to have been filmed during a night out in NY last weekend, seems to show National Basketball Association player Tristan getting cosy with the unidentified brunette before they appear to share a smooch. The rumors of his cheating come just a single day after the star posted an image of those both of them kissing Insta-gram although he retains her child bump.
LANI Blair has been identified as the woman seen to be kissing Tristan Thompson in new video footage. "She doesn't want her child to know that her mother dealt with such very bad behavior even if it is the father of her child". "Than I'll stick this long d*** in you slow but deep".
We'll continue to keep you posted on all the latest moving forward.
Neither Khloe or Tristan have publicly addressed the footage which has surfaced. It hurts and she is feeling super emotional right now especially because she is really pregnant so all of her feelings are more intense.