VIDEO: R-Pattz Cracks Up Over 'Breaking Dawn'

Kristen Stewart may have a hard time filming The Twilight Saga: Breaking Dawn opposite Robert Pattinson because he's already cracking up at the thought of a scene she'll have to deliver!

OK! GALLERY: R-PATTZ & HIS ANIMAL KINGDOM CO-STARS SHOOT WATER FOR ELEPHANTS

Rob confirmed to MTV News that Breaking Dawn will be filmed back-to-back, which Rob was relieved to find out!

"I'm glad they're shooting them together at least because I think that would just be easier, doing it all in one," Rob said.

And although the Twilight star admitted he hasn't read Breaking Dawn yet (can you believe it?!), Rob knows what to expect.

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Warning: Spoiler Alerts Below!

"I think that's going to be very funny," Rob said about Bella Swan, Kristen, having a baby. "The only thing I know about it is the famous scene: the kind of cesarean scene ... I do not envy Bill Condon to have to think of some way to do that."

But that's not all he has to say about that!

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