Zac Efron's Shirtless Flex-Off Stunt Photos Are Too Amazing
Zac Efron does a balancing act on his co-star Robert De Niro while going shirtless to film a flex-off scene in their movie Dirty Grandpa on Thursday (April 30) in Tybee Island, Ga.
It looks like the duo entered a flexing competition and they did some outrageous poses to try and win!
PHOTOS: Check out the latest pics of Zac Efron
Zac has been showing off his body all week while filming the upcoming comedy and he was seen running around in just a pair of nude underwear the other day.
35+ pictures inside of Zac Efron performing stunts…