- Oops!Something went wrong.Please try again later.
On Thursday, the Fuller House star, 58, shared a trio of adorable pictures on Instagram featuring his 3-year-old son, reflecting on the small but important moments with Billy.
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 while hanging out with his dad outside.
"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.
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.
In April, Stamos and his family celebrated Billy's fourth birthday with a trip to Discovery Cube's Bubblefest.
The actor shared pictures on Instagram from the festivities, where Billy was all smiles as he played in the room full of bubbles. The father-son duo was joined by Stamos' wife Caitlin, his sister Alaina, actor Josh Peck and more.
Stamos also spoke to PEOPLE last summer about life at home with his little boy, calling his family of three a "dream come true," especially considering the actor once believed having a family wasn't in the cards.
"I always wanted to have kids, but I didn't think I'd meet the right person," Stamos recalled. "And maybe I felt like well, I have everything, I shouldn't be greedy."
Ultimately, Stamos said he attributes finding his wife to "straightening up my life." Said the actor: "I wasn't deserving of it yet I think. But six years ago, I sobered up and I became a better person. And when Caitlin came around, I recognized it immediately. I said, 'I have to be good for that to make it work.' "