John Travolta showered his son Benjamin with love on his milestone birthday. The 66-year-old actor took to Instagram on Monday to celebrate his youngest child, who turned 10 years old on Nov. 23. Sharing a rare photo of himself sweetly hugging Ben, John wrote, “Happy 10th birthday my wonderful Ben! I love you!”

Ben’s big sister Ella Travolta, 20, also commemorated her brother’s special day with aheartfelt tribute. Alongside a photo of Ben on a boat, Ella wrote, “Happy Birthday Benjamin!!!! To the sweetest boy in the world, I am so lucky to have you in my life. Even though I am your older sister, you continue to teach me so much every day. You are my best friend and I love you to the moon and back.”

Benjamin’s birthday marked his first without his mother Kelly Preston, who passed away in July after privately battling breast cancer for two years. John announced his wife’s death on July 13 writing, “It is with a very heavy heart that I inform you that my beautiful wife Kelly has lost her two-year battle with breast cancer. She fought a courageous fight with the love and support of so many. My family and I will forever be grateful to her doctors and nurses at MD Anderson Cancer Center, all the medical centers that have helped, as well as her many friends and loved ones who have been by her side.”

He added, “Kelly’s love and life will always be remembered. I will be taking some time to be there for my children who have lost their mother, so forgive me in advance if you don’t hear from us for a while. But please know that I will feel your outpouring of love in the weeks and months ahead as we heal. All my love, JT.”

John and Kelly welcomed their son Benjamin in 2010, less than two years after the tragic death of their firstborn, Jett Travolta. The Gotti star credited Ben with helping his family “rebond” following the loss of Jett. “We certainly have bonded together,” John said in a 2016 interview on Good Morning America. “Certainly having little Ben has been a beautiful kind of glue for us to rebond after a tremendous loss.”