Catherine Zeta-Jones couldn't hide her pride as her son Dylan celebrated his graduation.
The star, 52, shares the 21-year-old with Michael Douglas and posted a sweet pic of their son, who looked dashing in his cap and gown.
In one snap Catherine hugs her 'joy' and looks gorgeous wearing a cream boater hat and stunning summery dress.
In another she smiles happily sandwiched between her son and daughter, Carys, 19.
Captioning the images, she wrote: "Graduation congratulations to my boy, my pride, my joy, Dylan. I am inexplicably proud of you and I love you beyond words.".
Dylan has bagged a degree in Political Science from prestigious Brown University in Rhode Island.
The Ivy League university was also attended by Harry Potter star Emma Watson and is considered to be one of the best in the country.
The night before his graduation Dylan was left speechless after Catherine's brother, Lyndon, flew from Wales to surprise his nephew.
During Dylan's pre-graduation dinner, the stunt performer, 50, broke into song as he regaled his family with his vocal ability.
Sharing the sweet video, Catherine wrote: "Surprise! Surprise! Pre-graduation dinner when my son Dylan sees his Uncle who came all the way from Wales to celebrate this amazing milestone. It was tough keeping this a secret but it was priceless."
Dylan's sister Carys graduated from high school last year and is also expected to attend Brown.
In the summer the actress shared a pic of her daughter, Michael and Dylan.
Clutching her files, Carys looked adorable as her famous parents paid tribute.
Catherine said: "What a proud day as our daughter Carys graduates with honors for her International Baccalaureate! You rock, we love you."
While the Basic Instinct star gushed: "Congratulations to Carys and the entire class of 2021! Your Mom and I are so proud of you!"
Catherine is notoriously private when it comes to her family, but did post a vacay snap earlier this year.
The gang were holidaying on Dominica in the Caribbean and Michael looked every inch the proud dad.
Standing with his arms around his kids, the actor was all smiles in front of a beautiful waterfall.
Fans flocked to the comments section after seeing the snap, with one gushing: "I know that look of yours Michael…you are as proud as punch to be in the middle of these two and so you should be."
