John Stamos and wife Caitlin welcome their first child together

John Stamos and Caitlin McHugh Romance Rewind

John Stamos and Caitlin McHugh Romance Rewind

The actor, who first met his new bride in 2011 on the set of an episode of "Law & Order: SVU", shared the news of his son's arrival on Sunday by posting a black-and-white photo of the newborn lying on his chest with his tiny hands wrapped around Stamos' finger.

"From now on, the best part of me will always be my wife and my son", Stamos wrote.

The couple had announced in December that they were expecting.

It will always be Full House to us but those of you who were fans of the original series and the current reboot on Netflix will be happy to hear that John Stamos has become a father for the first time.

"We have the same morals and the same values, that all clicked nicely". The pair said their vows in front of a small group of family and close friends.

Caitlin, 32, went on to describe the look on her partner's face upon learning of their attractive baby news.

"I had the best father in the world", the actor told People magazine. "I've never heard her say a bad word about anybody". People say, 'Oh, you look young.

"You know how you put your father on a pedestal, and he's a superhero, and then as you grow older, you go, "Ah, he's just a man"?"

John and Caitlin announced their pregnancy late a year ago. "I've been practicing for a long time".

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