Neil Patrick Harris is so proud of his family, and to prove it, he tweeted the above pic of his partner David Burtka and their twins, Gideon and Harper.

The How I Met Your Mother star also wrote:

    "Relaxing on a Sunday afternoon. My heart is full of love."

Although the 37-year-old star is missing from the photo, the six-month-old twins couldn't be happier posing with their other daddy. Adorbs!

The babies were born last October via surrogate. Read what Harris tweeted following their birth ... after the jump.