Sexy Siblings! Zac Efron Shares Shirtless Pic With Brother Dylan

by Jackie Willis 4:17 AM PDT, July 07, 2015
Photo: Instagram

It's hard to say who's hotter in this pic of Zac Efron and his younger brother Dylan.

The 27-year-old heartthrob posted the Instagram image on Monday showing him and his baby bro shirtless and goofing around. He hashtagged the pic, "#brothers."

WATCH: Zac Efron Swings Shirtless in Hawaii -- See His Ripped Body!


A photo posted by Zac Efron (@zacefron) on

This wouldn't be the first time we've gushed over the Efron boys. This past May, Zac shared a poem that Dylan penned about his famous sibling for an old homework assignment. The poem was titled "A Brotherly Thing."

"My brother is a movie star, and is only 16," Dylan, who's now in his early 20's, wrote. "He doesn't have a job yet. Still, he thinks he is the queen."

PHOTOS: 11 Sexy Celebrity Brothers

Showing love for his older brother, Dylan added, "I guess he isn't that bad, if I think about it twice. He helps me with my homework, and always gives advice."

Who do you think is hotter: Zac or Dylan?