Zac Efron’s butt double snapped on set of Dirty Grandpa

ZAC Efron has no problem whipping of his shirt and showing off his rocking abs. And now we’ve finally seen a new side to the Zefron ... kind of.

***ONE TIME USE, WEB USE ONLY, CONTACT NETWORK PIC DESK FOR PRINT RIGHTS*** **MUST CREDIT - FameFlynet/Snapper Media*** Exclusive 51732313 Actor Zac Efron strips down and hops on a motorcycle to film a scene for his new movie Dirty Grandpa in Tybee Island Georgia on May 5 2015 Zac s stuntman also stripped down to a tiny thong as he filled in for Zac on the bike FameFlynet Inc Beverly Hills CA USA 1 818 307 4813

ZAC Efron has no problem whipping off his shirt and showing off his rocking abs — but apparently Zefron’s a little shy about showing off his booty.

The 27-year-old has been seen in various states of undress while shooting his new film Dirty Grandpa, but he reportedly refused to slip on a tiny flesh-coloured G-string for one particular scene.

We wish Zac lowered his towel just a little bit. Credit: FameFlynet

New pics from the set show Zac with a towel wrapped around his waste while his butt double is rocking a skimpy thong and jumping on a motorcycle.

Yes, it’s disappointing we won’t be seeing Zac’s beautiful butt in the flick — but from the look of the butt double’s cheeks, he’s just a delicious.

It’s not Zac’s butt — but it’s still quite nice. Credit: FameFlynet

And if these pics got you a little hot and bothered, we’ve done the hard work of compiling the best near-nude pics of Zac. Be sure to keep them on file.