The 30-year-old, Boston Celtics player is in hot waters for allegedly cheating on Khloé Kardashian. Again. Instagram model Sydney Chase claimed she had a brief fling with Tristan Thompson in January.

Chase posted on her TikTok video saying, “Yes, the Tristan rumors are true.”

In an interview with No Jumper, members of the Blackout Girls asked about Chase’s relationship with Thompson. “It was a peek-a-boo d–ck. But, baby, it was good,” told the Instagram model.

Chase went on to say that Thompson said he was single, prompting the two to talk and hang out multiple times. When Chase found out about his relationship with the Kardashian, she ended up things with Thompson.

“It happened, and then I found out he was not single. I cut him off,” Chase said. Despite ending things, the basketball player reached out to the model many times.

“The last time we had contact, besides when he messaged me after finding out about the interview, it was the day after his daughter’s birthday party,” Chase said.

Thompson was out of town for a game.

In her TikTok account, Chase apologized for sharing personal information about Tristan, saying that it wasn’t okay and “and I shouldn’t have done that.”

“Me, answering the question about our past relations – that is true. We did have past relations. I, then, found out he was in a relationship and I ended things,” she claimed.

Meanwhile, Kardashian posted a cryptic quote by Sonia Sabnis on her Instagram Story after the allegations surfaced.

“People who don’t hesitate to share a kind word or do a good deed to brighten someone else’s day are the best kind of people,” it read.

This is not the first time Thompson was caught cheating on Kardashian.

In 2018, Kardashian was nine months pregnant with their child, and Thompson was seen snuggling with Instagram model Lani Blair in a hotel. Afterward, there were multiple videos and photos that surfaced online of Thompson kissing different women.

A year later, Kardashian and Thompson broke up after the latter was caught kissing Kylie Jenner's best friend, Jordyn Woods.

In 2020, the pair got back together and even got engaged earlier this month of 2021.

Tristan Thompson, Khloé Kardashian The happy couple announced they are expecting a baby as the Kardashian star is four months pregnant. Instagram