Tristan Thompson has admitted to having a "sporadic," ongoing sexual relationship with his personal trainer while still in a relationship with Khloé Kardashian.
The Keeping Up With The Kardashians star's boyfriend - and the father of her daughter True - has found himself at the center of yet another cheating scandal, Daily Mail reports.
In a major blow to Khloé, it's reported that Tristan conceived the child while still being in a relationship with the reality TV star.
Maralee Nichols, the woman in question, is now suing the NBA star for child support and pregnancy-related fees after she said they conceived a child together.
In a court document filed earlier this month and published by Daily Mail, the NBA star - who has disputed the paternity of the child, born December 1 - recalled meeting Nichols in late November or early December 2020 at someone's home.
At the time, he said he "was very cautious" and "did not foresee that she and I could have any type of relationship."
He also denied having sex with her in California around that time, claiming that the "only" possible date of conception for the child is March 13, 2021, Thompson's birthday. Nichols has said the child was conceived in April, per the document.
Thompson also repeatedly asserted that his relationship with Nichols was "based on sex only."
"We did not have a serious ongoing relationship. We saw each other sporadically between December 2020 and March 13, 2021," he wrote.
"[Nichols] told me that she had been involved with other athletes and understood the limitations of our relationship; to wit, that we might see each other on a sporadic basis for consensual sex only."
"We did not have any dates in the traditional sense at any time; there were no dining at restaurants, going to movies, traveling or any other indicia of a normalized relationship," he later added.
"There was only Snapchats of 'where' and 'what time' we would hook up and what hotels would be used."
During the time that Thompson admits to having a sexual relationship with Nichols, he was publicly dating Kardashian, with whom he shares daughter True. He also has a son, Prince, 4, with ex-girlfriend Jordan Craig.
Khloe began her on/off relationship with Tristan in 2016 but suffered public humiliation when True arrived in February 2018, hours after rumors Tristan had cheated on her during her pregnancy - which he denied.
The NBA player appeared to kiss another woman at a New York City club in photos and a video obtained by the publication. Khloe was nine months pregnant with True at the time.
Later the same day, TMZ released footage of him kissing and touching two other women at a bar in Washington, D.C, in October of 2017.
The reality television star did not issue any comment immediately, but she welcomed the couple's child just three days later, on April 12th, 2018, at a hospital in Cleveland, Ohio.
Tristan was then frozen out by the reality star and her family after he kissed Kylie Jenner's former BFF Jordyn Woods at a house party in 2019.
Here's a timeline of Khloe and Tristan's rocky relationship.