Naomi Watts has shared an adorable tribute for her youngest son Kai’s 16th birthday.
The British-Australian actress, 56, took to Instagram on Saturday to share some heartfelt words along with a sweet photo of her and Kai.
In the picture, Naomi looked every inch the doting mother as she smiled proudly at Kai as they held hands, both looking glamorous for a lavish event.
The King Kong star cut a glamorous figure in a white off-the-shoulder dress, while Kai looked every inch like Naomi in a black halterneck dress.
The King Kong star also shared an adorable photo of Kai as a baby and gushed about his youngest son with a heartwarming caption.
She wrote: ‘Dear Kai. Happy sixteen years. Your sweetness is pure and I am the luckiest mommy in the world and that world is SO lucky to have you here!!
Naomi Watts has shared an adorable tribute for her lookalike son Kai’s 16th birthday, posting a photo of them holding hands.
The King Kong star also shared an adorable photo of Kai as a baby and gushed about her youngest son with a heartwarming caption, writing, “I thank my lucky stars that I get to be your mom.”
‘You blew me away with your wild spirit, your strength and yes, also your gentle sweetness. You even let me post a baby photo!!
‘I thank my lucky stars that I can be your mom. I love you to the moon.’
Naomi shares Kai and son Sasha, 17, with her ex, American actor Liev Schreiber, with whom she was in a relationship for 11 years before they amicably split in 2016.
Liev has since married Taylor Neisen, while Naomi found love again with Billy Crudup.
Naomi and American actor Billy tied the knot in a modest wedding ceremony at a New York courthouse in June 2023.
They then exchanged vows a second time a year later in a larger ceremony with their family and friends in Mexico.
Videos shared on social media by Naomi’s brother Ben at the time gave insight into the lavish ceremony, featuring notable guests including Nicole Kidman and Isla Fisher.
Naomi’s son Kai and niece Ruby were bridesmaids, and also in the wedding party were Naomi’s son Sasha and Billy’s son William, 20, who he shares with Mary Louise Parker.
Naomi shares Kai and son Sasha (pictured in October), 17, with her ex, American actor Liev Schreiber, with whom she was in a relationship for 11 years before amicably splitting in 2016.
Naomi has since found love again with Billy Crudup and the couple married in New York in 2023, before celebrating their union again a year later with another ceremony in Mexico.
In October, Naomi gave rare insight into her relationship with Billy by revealing the unique way they had celebrated his 56th birthday.
She shared a loving photo of her and Billy together and told how they had spent her birthday playing pickleball, a competitive paddle sport similar to tennis.
She shared in a caption: ‘Thank you for all my lovely birthday wishes. Pickle ball with the husband followed by a couples massage made it one of my all-time favorites.
‘Look at the happiness in my eyes. Grateful beyond words and to all of you too.’
Naomi and Billy met on the set of the 2017 Netflix series Gypsy, in which she played a therapist who uses an alias to develop close relationships with people intimately connected to her patients, while Billy played her husband.
The co-stars began a relationship in late 2017, a year after Naomi split from Liev.