By Benge Nsenduluka For Daily Mail Australia
Published: 01:33 BST, 23 May 2019 | Updated: 01:33 BST, 23 May 2019
She recently described supermodel, Naomi Campbell, as her 'other mum'.
And on Tuesday, Adut Akech Bior, 19, shared a heartwarming tribute to Instagram for the iconic star, in honour of her 49th birthday.
'This lady here means so much to me... You're one of the most loving, caring, inspiring [ladies] with the biggest heart that I've ever met,' Adut wrote alongside photos of the pair.
Heartfelt: Adut Akech Bior (right), 19, shared a heartwarming tribute to Instagram for Naomi Campbell (left), in honour of her 49th birthday on Wednesday
'The love I have for my own birth mother is the love I have for you mama. Our relationship is one I would've never dreamt or imagined having but I'm so thankful we have it.
'I love and appreciate you beyond words and I can't wait to see you soon mama.'
Adut, who was named model of the year at the 2018 Australian fashion Laureate awards in November, grew up admiring Naomi before they ever met.
Naomi and Adut are pictured with Joan Collins (left) and Pier Paolo Piccioli (2-L) at the Met Gala earlier this month
During her teens, Naomi became Adut's mentor and they both featured in the 2018 Pirrelli calendar.
Naomi has become a great source of support for Adut, who is relatively new to the