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Neighbors 2, Zac Efron, Seth Rogen, Rose Byrne

Chuck Zlotnick/Universal Pictures

Seth Rogen's (fake) abs could really give Zac Efron's a run for his money. OK, not really, but the effort is acknowledged and appreciated.

In our first official look of the highly anticipated sequel to their film Neighbors, fans see the always-hunky and buff Efron, as frat bro Teddy Sanders, flaunting his drool-worthy shirtless bod while wearing tiny orange shorts. His new buddy Rogen, aka Mac Radner, decided to match with his younger bestie and tried to be on par with his washboard abs by having fake lines defining his muscle.

"Anytime I'm shirtless next to Zac Efron for really long periods, it even gets to me eventually," Rogen told Entertainment Weekly. It's precious, really.

Meanwhile, Rogen's onscreen wife Rose Byrne, who plays Kelly Radner, dressed up as a pregnant cheerleader (Byrne is actually pregnant in real life).

But what are they all so fixated on? It's the sorority girls that have penetrated their block.

Neighbors 2: Sorority Rising introduces some very familiar and pretty newcomers to the film, including Chloe Grace Moretz and Selena Gomez. "With the sorority girls, it's like a glimpse into their daughter's future, and it terrifies them," Byrne told EW.

And while we don't know too many details about the upcoming flick, viewers can rest assured that they're going to experience more ragers that will make them either wish they were back in college or dread living next to a house full of young party animals.

"I could do a TED talk on how to throw a fake party," said director Nicholas Stoller. "I've thrown at least 20 times more fake parties than real parties, and my real parties are so much worse."

You can experience all the fun with Neighbors 2: Sorority Rising hits theaters May 20.