Entertainment TV Tristan Thompson Celebrates Khloé Kardashian on Mother's Day: 'I Love You' Tristan Thompson and Khloé Kardashian share 3-year-old daughter True By Maria Pasquini Maria Pasquini Associate Editor, Human Interest - PEOPLE People Editorial Guidelines Published on May 9, 2021 06:15 PM Share Tweet Pin Email Happy Mother's Day, Khloé Kardashian! On Sunday, the Keeping Up with the Kardashians star received a special Mother's Day shout-out from Tristan Thompson, who shared a photo of Kardashian and their 3-year-old daughter True. "Happy Mother's Day @khloekardashian I love you," the NBA star wrote on his Instagram Story. Meanwhile, Kardashian honored her mom Kris Jenner. "Happy Mother's Day to my Queen! You are my heartbeat!!! Without you we are nothing! Thank you for EVERYTHING you do for each and everyone of us. You are love in human form," she wrote on Sunday, which also happened to be her nephew Psalm's 2nd birthday. Tristan Thompson, Khloe Kardashian. Jerritt Clark/Getty Images Praising the Kardashian-Jenner momager, Khloé added, "I will never be able to express how much we all love, adore and cherish everything about you But I will try every single day. I love you queen mommy." Tristan Thompson/Instagram 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. Kim Kardashian Shares Silly Photos of Her Daughter Chicago with Nieces Stormi and True: The 'Triplets' Last month, the Good American co-founder celebrated another sentimental day: her daughter's third birthday! In honor of her baby girl's big day, Kardashian threw a "cousins only" princess-themed bash, which also included a giant purple bounce house and cookie decorating. RELATED VIDEO: See Inside True Thompson's Third Birthday Party Complete with Disney Princesses and a Bounce House Kardashian also shared a loving tribute to her daughter on Instagram, saying that she's "not ready" for her baby girl to grow up. "I almost cry every time I call you 'Baby True' and you correct me. You say in the sweetest voice 'I'm not a baby! I'm a big girl!' I'm not ready for you to be a big girl but you must know, No matter what age you are, You will always be my Baby True," Kardashian captioned the touching post. "You have changed my life in more ways than I ever could have dreamed of," she added. "You are my best friend. My greatest blessing. My entire world." Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. "Watching you grow up has been one of my greatest honors," Kardashian continued. "Seeing life through your eyes is something so special. It's something magical. I will cherish every moment I have with you forever. You are every dream I've ever had of becoming a mommy come True. Thank you for choosing me! God, thank you for blessing me with my angel. Happy birthday my baby True."