- Oops!Something went wrong.Please try again later.
John Stamos Instagram
John Stamos is celebrating son Billy's milestones!
On Tuesday, the Fuller House star, 59, shared a sweet mini-me moment with his 4-year-old son on Instagram.
"One of us is starting his first day at school. And the other is doing everything in his power not to cry," Stamos wrote alongside a photo of father and son wearing matching white, short-sleeved shirts.
In the pic, Billy stands slightly behind his dad in khaki shorts with shaggy hair and a side-swept part.
Stamos, who shares Billy with wife Caitlin McHugh Stamos, frequently posts about big events and everyday moments with his family.
Earlier this week, the trio enjoyed the Spider-Man-themed "Glow Webs Glow" experience at the Santa Monica Pier.
"Wonderful day at "Glow Webs Glow" event celebrating Season 2 of #SpideyandhisAmazingFriends," Stamos captioned a carousel of shots on Instagram, showing the happy family. "I have the honor of playing one of his friends, Iron Man. @disneyjunior #marvel @disneyplus @caitlinskybound."
In June, the actor shared more low-key pictures of him and Billy just hanging out in the backyard.
In the first shot, Stamos sits in a garden while holding Billy on his lap as the two of them laugh together. The dad of one also included a sweet picture kissing his son on the head as the preschooler is wrapped up in a towel.
Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
"The little moments. The 'micro-transactions' that take place in between life's big events. I like those the best," Stamos captioned the thoughtful post.