Khloe, 30, shared a photo with her family members, all sporting sneakers and standing together in a circle on a dirt path.
"Happy Feet!!!" she wrote alongside the pic. In addition to that snap, Khloe also posted a shot of her nieces Penny, 2, and Nori, 21 months, running along the path during their outdoor excursion.
Kris Jenner's one and only son certainly felt the love from his family members on Tuesday. In addition to receiving sweet messages on social media, the sports fanatic was feted with a basketball-shaped cake decorated with the Los Angeles Lakers' trademark gold and purple colors.
"I don't think this is on my 'let's get abs' diet but you only live once right?!?!" Khloe wrote alongside a photo of the candlelit confection. "@robkardashian birthday comes only once a year. Let's eat some cake!!!!"
Rob is especially close to Khloe, and currently lives with her in Calabasas, Calif. While Rob's sole photo from his big day was of the massive balloon decorations filling the front corridor, Khloe dedicated numerous Instagram posts to her best friend and sibling.
"Never will I ever meet another man as great as you!" she wrote in one photo. "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!! Happy Happy Happy birthday!!"
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