D.B. Weiss and David Benioff have proven themselves game for interacting with shows vastly different than their HBO fantasy epic Game Of Thrones. Recently they swapped shows with Parks And Recreation’s Michael Schur and Dan Goor to write plot synopses of an episode for Entertainment Weekly. Now they’ve taken their collaborative spirit a step further, with Rob McElhenney announcing via Twitter that Benioff and Weiss wrote an episode of the upcoming season of It’s Always Sunny In Philadelphia.

Other details haven’t trickled out yet, but the show moves to FX’s new youth-oriented FXX channel sometime in the fall. Benioff’s other writing credits include 25th Hour and The Kite Runner, so we’re all in for a laugher. Perhaps the collaboration will lead to a Sunny-written episode of Game Of Thrones, presumably where Tyrion and Bronn spend the entire episode in a King’s Landing pub, Robb and all his bannermen spend the entire episode in a pub, and the McPoyles show up on the Iron Islands.