Zach Braff knows how to make his precious godson smile.
The 38-year-old actor posed with Donald Faison and CaCee Cobb's adorable son Rocco and shared the sweet snapshot on Twitter.
"Me and my god son. Made with 's sperm," Braff captioned the darling pic. Faison re-tweeted the wonderful moment to his followers, as well.
Braff's mouth is slightly open while he gazes wide-eyed at the camera. The 4-month-old, sporting a baby blue ensemble with a white bib, is looking off to the side and flashing a big grin.
Perhaps his parents are making a funny face at him? Regardless, what a cute pair!
Braff and Faison grew especially close during their time on the hit series Scrubs, which ended in 2010.
The longtime pals reunited for the comedy-drama Wish I Was Here, which Braff directed and will be released in 2014.
Faison married Cobb at Braff's L.A. home in December 2012. The newlyweds welcomed their first child together in August.
"Yesterday @caceecobb and I welcomed the most amazing little boy into our lives! Oh Happy Day!!" Faison tweeted shortly after the birth.
Jessica Simpson's BFF has since posted several aww-worthy pictures of her son on her Instagram account, most recently on Thanksgiving.
"Happy Thanksgiving from the Faisons!" she wrote along with the lovable family photo.