When it comes to the idea of fatherhood, Zac Efron is soaring, flying.

In fact, the High School Musical alum recently told E! News, "I think I'd love to have kids one day."

And while Zac has kept his love life out of the spotlight in recent years—he and model Vanessa Valladares split in 2021 after nearly a year together—he has put his family life on full display. After all, he and brother Dylan Efron, 32, have often given glimpses into life with their younger half-siblings Olivia, 4, and toddler Henry. 

In fact, The Iron Claw star makes it a point to always show some love for his younger brother and sister—showcasing memories with them at the circus and even declaring Olivia to be his Valentine last year.

Back in 2022, the 36-year-old shared a series of sweet snaps with Olivia in honor of her birthday, including him holding her and another of him kissing her on the head. And he let the pics do all the talking as he simply wrote, "Happy bday lil sis."

It seems life as big brother may have changed his thoughts on fatherhood since Zac has admitted to not being sure he was ready to take on that role. After playing a dad in 2022's Firestarter he shared on The Ellen DeGeneres Show May 2022, "I think that was a healthy dose to put me off of it for as long as necessary."

"I have a little bit more growing to do, probably," he explained "I don't know. Not yet." 

But until Zac takes on the role of dad in real life, he's keeping busy with his big brother duties. Keep reading to see some of his cutest sibling moments.

Ricky Stanicky premieres globally on Prime Video March 7. 

—Reporting by Nikaline McCarley

Zac bonds with his brother Dylan Efron on a late summer 2023 trip.

Zac Efron posted this adorable photo of him reading a book to little sister Olivia in February 2023, writing on Instagram, "My valentine."

In a June 2021 Instagram post, Zac called Olivia a "little heartbreaker."

Zac took Olivia and his youngest brother, Henry, to the circus in June 2023.

The High School Musical alum visited Circus Vargas with his siblings and dad David Efron.

Zac and his younger brother Dylan cuddled some baby goats in June 2018.

The older Efron brothers checked out a Los Angeles Dodgers game on August 24, 2016.

Zac posted this brotherly photo in honor of Dylan's 31st birthday in February 2023, writing in the caption, "Here's to many more years of shared adventures and endless good times. Love ya!"

The actor shared an adorable moment with Olivia on her birthday in December 2022.

"Happy bday lil sis," he captioned this sweet snap.

Zac greeted Dylan at the finish line when he ran the Nautica Malibu Traithalon in September 2016.

The Baywatch star rode bikes with Dylan during a sunny outing in Los Angeles in June 2017.

Zac and Dylan went camping in the family's new van in July 2017.

They're all in this together! Zac marked Dylan's birthday in February 2022 with a hilarious tribute, reading, "HBD lil bro! 30 years and we're still up to the same $&!+."

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