Khloé Kardashian Celebrates Look-Alike Brother Rob's 34th Birthday with a Heartwarming TBT Pic

Khloé Kardashian took to Instagram to celebrate her younger brother and "best friend," Rob, who just turned 34 years old, with a heartfelt tribute and sweet throwback picture.

Khloé Kardashian couldn't hide her excitement as she celebrated her brother, Robert "Rob" Kardashian's 34th birthday on March 17. Rob is the youngest child of their late father, Robert Kardashian's children with Kris Jenner.

The "Keeping Up With The Kardashians" star poured her heart out as she declared her love and support for her brother in a lengthy tribute shared on her Instagram account.

In her caption, Khloé, 36, recalled being best friends with Rob ever since their childhood and proclaimed that their close bond would never be broken. The accompanying picture proved how close the pair have always been.

The black and white photo featured a young Khloé with a polka dot bow on her head and a young Rob rocking a Mickey Mouse cap. The two posed together with Khloé affectionately holding her younger brother.

Khloé also gave Rob some encouraging words, letting him know she is proud of him and listing his great qualities like his sense of humor and sweet nature. She also ended the tribute by saying:

"Grow strong, powerful, and independent. You got this Bob! You are enough! You always will be!! I will love you forever and always."

Khloé is not the only member of the Kardashian clan to use social media to celebrate Rob's birthday. Big sister Kim Kardashian, 40, also shared a touching tribute on Instagram where she called him a "crazy funny insane person."

The SKIMS designer accompanied her sweet post with a more recent photo of herself and Rob dancing on a beach and recalled a few of the incredible adventures they've experienced together.

[Rob] was not at his happiest for a long time and preferred to stay out of the spotlight.

The matriarch of the Kardashian family, Jenner, shared a hilarious video montage of Rob's funniest moments from their reality television series along with a sweet message for her only son.

Jenner, 65, said that Rob brightened up her life and commended him for being a great son, brother, uncle, grandson, and father to his daughter, Dream, who he shares with Angela "Blac Chyna" White, 32.

The birthday tributes from Rob's mom and sisters proved he has a great personality. However, he was not at his happiest for a long time and preferred to stay out of the spotlight.

Fortunately, Rob has been showing more of himself and appears to be in great spirits, keeping his focus on his health and wellness and being the best dad to his four-year-old daughter.