Neil Patrick Harris & David Burtka’s Twins Turn Six

By RobynLast updated Oct 13, 2016

Neil Patrick Harris and David Burtka‘s twin children Harper Grace & Gideon Scott celebrated their sixth birthday on Wednesday (Oct. 13).

The How I Met Your Mother actor took to his Instagram to share a sweet two-picture shot of the brother-sister duo partaking in fun activities.

“Gideon and Harper turn 6 today! Happy birthday to these big, bold, brave, bright, beautiful bundles of bountiful blessings. Boom. #balliteration @dbelicious and I love you kids SO much! #grateful,” he captioned the shot.

Burtka also took to Instagram a day later to gush about their twins.

I am one day late, cause my phone fell in the ocean…. yikes!! But Happy Birthday to the most loving, fearless and most adventurous eaters I know!! @nph And I love you Gideon and Harper!
A photo posted by David Burtka (@dbelicious) on Oct 13, 2016 at 5:23am PDT

Harris and Burtka married in Italy in September 2014. They welcomed their twins in October 2010 via a surrogate mother.