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Zac Efron has finally graduated to daddy status! In the new movie Firestarter - based on the Stephen King book about a fiery little girl who creates fire when she gets emotional - Zac plays the girl's father, who tries to protect her from government officials eager to harness her unique power for military purposes. Phew! A lot going on here. Before you see Zac as the zaddy he was always meant to be, we'd like to relive his time as a sexy and ripped jock - which seems like it was just yesterday. More importantly, we're focusing on that time Zac Efron thought we would think we saw his penis.

It all went down in Zac Efron's sexiest role to date, in Dirty Grandpa. This is where we got to see his big jock butt in just a stuffed animal hornet thong. But there's a strange scene in which Efron encounters a little boy on the beach after waking up nearly naked. Efron goes from nearly naked to strategically nude - appearing on camera with just his hands covering his penis and balls.

But there's more. For a very brief second, Efron's hands slip, and we can see his penis and balls! But wait, there's... more. It turns out that this very believable nude scene is actually the makings of CGI wizardry. Usually audiences can spot CGI scenes from a mile away. They're often used for comedic effect, or to deliver an inhumanly large penis.

But Zac's scene is different. The CGI technology is implemented with a previously unseen subtlety. We are actually able to suspend disbelief and feel that for one glorious second, we are actually witnessing nude Zac Efron's dick. According to the IMDB trivia page for Dirty Grandpa: "A stunt penis was placed over his crotch using CGI for the split-second frames where he is most exposed."

Boo. But also, yay! If this is as close as we come to seeing Zack Efron's dick pic, then so be it. So before checking out Firestarted this weekend, see this (almost) full-frontal scene. It's straight fire!

Zac Efron's Believable CGI Penis In Dirty Grandpa