The 38-year-old actor's wife, Blake Lively, took to her own Instagram to show her husband some love. She reposted the sweet snap, which is the first picture of baby James that the notoriously private couple has ever shared.
" ... And with that, my husband @vancityreynolds joins Insta," she confirmed.
Ryan and Blake welcomed James in December. Last month, Blake revealed how life has changed for the amazingly attractive couple, who've been married since September 2012.
"Everything is different, you know? You see a balcony and you're like, 'Oh, my God! The hotel needs to demolish this balcony because my child can't go anywhere near it,'" she joked on Live! With Kelly and Michael. "So everything is just so much more heightened. We're crying all the time for no reason."