A sister's bond can often be unbreakable and that's exactly what's been seen in Khloe Kardashian's gushing birthday tribute to Kendall Jenner.
The reality TV star, 38, took to social media to wish her little sis Kendall a happy 27th birthday with the help of a series of sweet throwback snaps.
Khloe is one for writing heartfelt posts on Instagram and the words directed at her sister certainly didn't disappoint. Sharing her sweet words alongside a number of images, the Good American co-founder wrote: "To my very first baby, happy birthday.
"@kendalljenner you are the one who stole my heart and you made me fall in love in more ways than I even knew possible. You are the one who taught me responsibility, patience, unconditional love and compassion.
"You are one of the most gentle and pure people I have ever known. You feel deeply. You give your all to the ones you love."
Continuing her lengthy post, Khloe touched on her sister's "silliest personality" and praised her for breaking down barriers.
"When someone told you no, you never quit until you proved them wrong," she added. "You have shown the ones around you how to fight for their beliefs and how to never give up. How we have to work hard for the things we believe in and how family comes before anything."
And she also thanked the model for holding her hand through life's challenges and promised to always repay the favour.
She went on: "You are my heartbeat and I couldn’t feel more blessed to have a sister/best friend like you. I will declare my love for you until the end of time. Giving thanks and praise that I am lucky enough to have you as mine. Wishing you the happiest of birthdays my gorgeous pure Kenny."
Khloe concluded her post, saying: "|I pray you are forever spoiled with love and health. I hope you always feel just how obsessed we all are with the magic that is you. My rare my sweet Angel of a sister, I love you with every ounce of me. Happy birthday."
Kendall clearly appreciated the kind words as she responded in the comments section: "Obsessed with you till the end of time," followed by a heart emoji.
Among the throwback pics included Khloe holding her sis as a tot. The older sister was seen as a teen smiling at the camera as the youngster looked adorable in a light pink gown and matching floral headband.
She also shared several shots of the famous sisters all together before uploading a hilarious video in which Kendall's choice of dress was clearly making it a struggle to walk up stairs due to its tightness.