Buff Zac Efron shows off his bulge as he squeezes his muscular physique into a risqué skintight unitard on the set of new movie in Hawaii

From: The Daily Mail

 No doubt Zac Efron's fans will be delighted with the wardrobe department on the set of his new movie, Mike and Dave Need Wedding Dates.

 The 27-year-old was pictured wearing a rather tight blue lycra unitard as he filmed upcoming scenes for the film, alongside on screen brother, Adam Devine while in Oahu, Hawaii.

The number had 'Champs 4 Eva' written on the front and while Zac appeared to see the funny side of his look, at other times, he looked a little uncomfortable and used his hand for a little modesty.

 The movie tells the story of two brothers, who buy personal ads to find a pair of dates to be their guests at a wedding.

 Slated for release on July 8, Zac, who plays Dave Stangle, stars alongside Anna Kendrick and Aubrey Plaza in the upcoming flick.

Adam recently shared a snap from the location writing: 'Heres to me being way more muscular and generally more shredded than my lil bro @zacefron.'  

In-demand actor, Zac, has just finished work on two other movies, Dirty Grandpa and We Are Your Friends.

Dirty Grandpa is about an uptight guy, who right before his wedding, is tricked into driving his grandfather, a perverted former Army general, to Florida for spring break.