Zac Efron's Heartwarming Message To Little Sister Makes Fans Gush

Zac Efron shared a lovely message for his 3-year-old sister's birthday sending fans gushing over the actor's gesture on social media.

"Happy bday lil sis," the "High School Musical" alum wrote Wednesday on Instagram alongside photos with his half-sister Olivia in celebration of her third birthday on Christmas Day, EOnline reported. He shared two photos of him cradling the little girl on his lap, with the second photo showing the 35-year-old actor planting a kiss on Olivia's head.

Fans touched by the actor's sweet actions toward his sister rushed to the comments section to share their thoughts. "My ovaries oh dear god," one commented, while another wrote, "Can you pls be the father of my children."

"Well my ovaries are on fire now.. thanks for nothing," one Instagram user said. Another suggested it is time for the actor to have his own family and said, "Sexy. time for you to be a dad."

Meanwhile, the actor's brother, Dylan joined the bandwagon and wrote, "I think we spoiled her."

This year, Zac took on his first role as a father in the Stephen King adaptation of the suspense thriller, "Firestarter," starring alongside Ryan Kiera Armstrong and Sydney Lemmon. The "17 Again" actor played the dad to Armstrong, a young girl who suddenly develops the power to set things on fire using her mind.

"I didn't think about it all that much," he said about shooting the film during a guest appearance on "The Ellen DeGeneres Show" in May. "And then when we started filming the movie, I had a two-week quarantine ... and when I got out of quarantine, we started filming that Monday, so it was a pretty quick intro to the film."

"All of a sudden, I had this daughter in front of me," Zac said. "We had a pretty heavy dad-daughter scene right off the bat, and I realized I was drastically underprepared for this part. I didn't know what I was doing."

The actor is not yearning for fatherhood and believes he needs more time to prepare for the responsibility.

"I think that was a healthy dose to put me off of it for as long as necessary," he told DeGeneres. "I have a little bit more growing to do, probably. I don't know. Not yet."