Rob Kardashian made his return to social media to celebrate sister Khloé Kardashian’s 39th birthday.
“Happy Birthday @khloekardashian,” he wrote on Instagram Tuesday alongside a selfie of him with the birthday girl. “Wishing you nothing but good health and happiness forever my darling buttercup!”
The 36-year-old continued, “I love you so much and so thankful to have u in my life and for all that U do for Dream and I. I don’t know what I would do without you … happy birthday.”
Rob also shared a photo of Khloé posing with his 6-year-old daughter, Dream, whom he shares with ex Blac Chyna.
Khloé was quick to respond to her younger brother’s sweet message, calling him her “heart beat.”
“My baby!!!! My favorite human being in the world,” she added.
The Arthur George founder has famously preferred to stay out of the public eye, unlike his sisters.
While his Instagram is run by mom Kris Jenner’s company, Rob occasionally pops back on to post birthday messages to his family. He last posted a tribute to his late father, Robert Kardashian, in February.
Rob, who even lived with Khloé at one point, has remained especially close to the Good American founder.
In July 2020, the mother of two told E! that while her brother might not enjoy the spotlight, he still spends a lot of time with his famous family.
“He’s at things a lot, we just always respect his privacy,” she explained. “He’s so handsome, he’s such a good person and I just love him. And I love that he’s getting a positive response because it’s just gassing him up more. It makes him feel really good and confident.”
Despite living a low-key life, intimate details about his relationship with Chyna, 35, were made public last year after the model sued his mother and sisters Khloé, Kim Kardashian and Kylie Jenner for defamation.
Chyna — whose real name is Angela Renée White — was seeking $100 million from the women, claiming they got her and Rob’s reality TV show, “Rob & Chyna,” canceled following a blowout fight between the exes in December 2016.
Throughout the trial, it was revealed that the model allegedly once held a gun up to Rob’s head, used a metal pole to beat him and strangled him with an iPhone cord — which she claimed was all in good fun.
Ultimately, the jury ultimately decided that no damages would be awarded to Chyna.