Celebrity Parents Woman at the Center of Tristan Thompson Scandal Has Delivered Her Baby, Source The NBA player is already dad to daughter True, 3, with Khloé Kardashian, as well as son Prince, 4, whom he shares with ex-girlfriend Jordan Craig By Georgia Slater Georgia Slater Twitter Georgia Slater is a writer/reporter on the Parents team at PEOPLE. People Editorial Guidelines Published on December 6, 2021 05:34 PM Share Tweet Pin Email Maralee Nichols, a woman who is suing Tristan Thompson for child support and other pregnancy-related fees, gave birth to a baby boy last week, her rep confirms to PEOPLE. According to court documents obtained by PEOPLE, the Sacramento Kings player, 30, confessed to having sex with Nichols on at least one occasion. Thompson is already dad to daughter True, 3, with Khloé Kardashian, as well as son Prince, 4, whom he shares with ex-girlfriend Jordan Craig. A source confirmed to PEOPLE that Kardashian "knows about the baby, but hasn't known for long." The source said Kardashian was still dating Thompson in March when Nichols claims she was involved with the NBA star. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Tristan Thompson. Rocky Widner/NBAE via Getty Khloé Kardashian 'Upset' Over Tristan Thompson's Cheating, 3rd Child: 'They Were Still Together' "Khloé was upset to find out that he cheated again," said the source. "She just can't believe that he is going to be a dad again." For more on Tristan Thompson's baby news and paternity suit, and other top stories, listen below to our daily podcast on PEOPLE Every Day. "It's just a sad situation to her," they added. The insider said that the couple was "doing great" while quarantined together during the COVID-19 lockdown, but that Kardashian "knew things would change" as soon as he returned to the NBA. "She was just hopeful that he would stay faithful and loyal to her," said the source. Khloé Kardashian and Tristan Thompson. khloe kardashian/ instagram; tristan thompson/ instagram "Khloe's family always tried to support her," they continued. "They always treated Tristan well even after he broke Khloe's heart multiple times." Thompson and Kardashian have been on and off for several years, and most recently split in June. At one point, the former couple was exploring the idea of having another child together, but their plans for a surrogate fell through last summer. A source previously told PEOPLE that the exes are continuing to "keep things friendly" for True's sake.