Tristan Thompson accused of cheating on Khloé Kardashian with an Instagram model

Tristan Thompson has been accused of cheating on Khloé Kardashian once again.

Instagram model Sydney Chase, 23, detailed her hook up with the NBA star, 30, that allegedly occurred in January this year.

"It was a peek-a-boo d--k, but, baby, it was good," Chase said on the No Jumper podcast.

"He told me he was not in a relationship anymore, so I said OK," she alleged. "We talked, we hung out multiple times, we went out together, everything."

Chase revealed she'd asked Thompson, who recently got back together with Kardashian, if he was single. He simply responded, "yes."

"It happened, and then I found out he was not single, and I cut him off," she said.

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After the interview surfaced, Kardashian shared some revealing quotes to her Instagram story.

"When thinking about life, remember this: no amount of guilt can change the past and no amount of anxiety can change the future," she quoted.

Her second post was another quote that read, "Invest in your energy, invest in your environment. Your environment has a direct impact on your life, so be intentional with it. Surround yourself only with people who contribute to your growth and expansion. All energy is contagious."

READ MORE: Khloé Kardashian claps back after fan calls her 'insecure' on Instagram post

In 2018, Thompson hooked up with Lani Blair days before Kardashian welcomed their baby daughter True.

In early 2019, he was involved in a highly-publicised cheating scandal with Kylie Jenner's former best friend Jordyn Woods. Kardashian ended her three-year relationship with Thompson.

During the COVID-19 pandemic, the couple appeared to be giving the relationship another chance.

"For the past year, I have seen so much growth and so much change in Tristan, which I'm so grateful for," she said on Keeping Up With the Kardashians.

"Right now, I'm giving the best that I can give and I'm trying. I feel like we're in a good place and there is progression and there is some forward momentum."