Neil Patrick Harris has been a dad for a decade.
The How I Met Your Mother star posted a sweet message to his twins, Harper and Gideon on their 10th birthday, gushing that the last decade has 'whizzed by' — and he's loved it.
"I've never felt more tired and broken down, nor more awake and alive," the proud dad said in the post. "My parenting skills are both terrible and amazing."
"Having children makes you grow in a thousand different directions," the actor continued. "I am just so thankful to my kids for all of it."
The actor also thanked his husband, David Burtka for 'his unstoppable, handsome, tireless devotion and commitment to being a parent'.
"Kind, smart, clever, hilarious, savvy, intuitive, ingenious - they are my absolute prides and joys, the doting dad continued. "I love them with every ounce of my being. #grateful"
Burtka also posted a photo of the celebrations, wishing his kids a happy birthday.
The twins were born in 2010 via surrogate, with Burtka explaining to Wendy Williams in 2015 that there were 'two different women involved.'
"There was an egg donor, a wonderful woman who was anonymous," he explained. "We took two of our best guys and implanted them into her eggs, two different eggs."
Harris is biologically the father of one twin while Burtka is the biological father of the other. The couple have spoken in the past about the paternity of their children, saying they don't plan on finding out which child they're biologically related to.
"I have no interest in [finding out]," Harris told Barbara Walters in 2014. "We are their parents and I love them implicitly."