Have you already watched the film Dirty Grandpa with Robert De Niro and Zac Efron? If you watched it, you should remember some scenes that featured Zac in all his glory. But those who didn’t still watch Dirty Grandpa have an opportunity to check out some new screenshots of naked Zac showing his bubble butt:

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And official trailer of Dirty Grandpa for those who is going to watch this film after such hot and explicit scenes:

Source: youtube.com

Photo: bitchyf.it