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Zac Efron And His Tight Shorts Reunite With His Delta Psi Bros In This Neighbors 2 Exclusive

Remember: 'Male erection before One Direction'

How close are Zac Efron and Dave Franco? So close that they expertly choreographed an entire guacamole-making montage for Neighbors 2: Sorority Rising. Seriously. Who knew Efron was so into selfie sticks?

Delta Psi may not be the focus of the raunchy, yet oddly progressive Neighbors sequel — that honor belongs to the ladies of Kappa Kappa Nu — but best friends Teddy (Efron) and Pete (Franco) do reunite with their Beta brothers Scoonie (Christopher Mitz-Plasse) and Garth (Jerrod Carmichael) for one last poker night before adulthood comes crashing down on Teddy's chill vibes. For the actors, who had become pretty close on the set of the first film, the sequel was a chance to "say dumb stuff" and hope it all turned out for the best. (See? Life does imitate art!)

It was also a chance for them to use a selfie stick without public shame.

For an intimate look at the hilarious Delta Psi reunion on the set of Neighbors 2, MTV News has an exclusive clip from the home release of the film, available now on Digital HD and on Blu-ray and DVD September 20.