Tristan Thompson's baby mama Maralee Nichols takes stroll with their newborn son for the first time since NBA star CONFIRMED paternity and publicly apologized to ex Khloe Kardashian for philandering By Carly Johnson For Dailymail.com Published: 01:12 GMT, 19 January 2022 | Updated: 01:15 GMT, 19 January 2022 Viewcomments Tristan Thompson's baby mama Maralee Nichols was seen pushing their baby son in a stroller while running errands in Santa Monica on Sunday, January 17. The 31-year-old fitness trainer looked comfy in a crewneck sweatshirt and skintight black leggings as she spent time outdoors with the one-month-old, who was born on December 1. The outing comes just weeks after Thompson, 30, used Instagram to publicly confirm that he fathered a child with Nichols, as well as to apologize to his ex Khloe Kardashian, 37, for philandering. Strolling: Tristan Thompson's baby mama Maralee Nichols was seen pushing their baby son in a stroller while running errands in Santa Monica on Sunday, January 17 Nichols completed her ensemble with some bright white sneakers and she kept a pair of black RayBan shades on her head. With coronavirus cases surging, the Instagram model erred on the side of caution by wearing a face mask. Her and Tristan's son was tucked inside of a fancy black stroller and bundled up in a thick, white blanket. The baby boy's tiny feet were seen poking out from under the blanket - revealing that he was dressed in a blue and white polkadot one piece from Posh Peanut. On January 3, Tristan confirmed via his Instagram stories he is the father of Nichol's child after getting paternity tests results. 'Today, paternity test results reveal that I fathered a child with Maralee Nichols. I take full responsibility for my actions,' Thompson wrote on January 3. 'Now that paternity has been established I look forward to amicably raising our son. I sincerely apologize to everyone I've hurt or disappointed throughout this ordeal both publicly and privately.' In a follow-up post, Thompson penned a direct message to his other baby mama Khloe, whom he was actively in a relationship with at the time of his sexual encounter with Nichols. 'Khloe, you don't deserve this. You don't deserve the heartache and humiliation I have caused you. You don't deserve the way I have treated you over the years. My actions have certainly not lined up with the way I view you. Comfy: The 31-year-old fitness trainer looked comfy in a crewneck sweatshirt and skintight black leggings as she spent time outdoors with the one-month-old, who was born on December 1 Sporty: Nichols completed her ensemble with some bright white sneakers and she kept a pair of black RayBan shades on her head 'I have the utmost respect and love for you, regardless of what you may think.' He concluded: 'Again I am so incredibly sorry.' Khloe and Tristan, who've dated on/off since 2016, share three-year-old daughter True Thompson. The basketball player also fathered a child, five-year-old son Prince Oliver, with model Jordan Craig. She was famously pregnant with Prince Oliver when Tristan first began dating Khloe. Public confirmation: The outing comes just weeks after Thompson, 30, took to Instagram to publicly confirm that he fathered a child with Nichols, as well as to apologize to his ex Khloe Kardashian, 37, for philandering; Tristan seen on January 3 It was recently uncovered that Thompson declared his love for Kardashian on Instagram in March 2021 just hours before meeting up with Maralee and conceiving the secret child. On March 13, 2021, Khloe gushed about Tristan on Instagram in honor of his 30th birthday - which, at the time, confirmed their very much on-again status. At that time, Tristan commented under her post with 'I love you soo much KoKo. Let's keep building amazing memories!' Share or comment on this article: All rights reserved for this news site (dailymail) and under his responsibility