The 31-year-old Keeping Up With the Kardashians star shared an adorable throwback selfie on Tuesday of herself pouting for the camera while brother Rob gave her a kiss on the cheek.
"If only you could see yourself through my eyes!" she captioned the blurry shot on her Instagram account. "I'll forever be obsessed with you! My one and only! #MyAce"
This is not the first time Kardashian has given a shout-out to her brother, who has led a very private life off-camera for years after initially struggling with weight loss.
For his 28th birthday back in March, Khloe shared another throwback photo of herself joking around with her little brother, writing, "Happy birthday @robkardashian!!!!!! Never will I ever meet another man as great as you! I know this is the year where you will find your happiness again! I will be right by your side, holding your hand, every step of the way!!! I adore you my one and only brother!!"
While little is known currently about how Rob spends his days, one thing is certain—he has his sister's endless love and support.
Despite his introverted behavior, E! News managed to get an update on the former reality star from his mother, Kris Jenner.
"He's OK. He's just working on himself a little bit and trying to be a better Rob, so I just have to trust that he's good," she recently told E! News' Maria Menounos. "We're all here to support him for whatever he needs, but he's doing OK."