Andy Cohen promised his Ralph Fiennes-Holly Hunter “Pajama Party” on “Watch What Happens Live” would be “epic,” and last night did not disappoint. There was a pillow fight, a special game of “Would You Rather” (in which Ralph triumphantly declared he had no clue who “Snooki from ‘Jersey Shore’ is”), a dramatic reading of x-rated “Harry Potter” fan fiction and even a special appearance by an adult diapered Amy Sedaris as the group’s “Amy-sitter.” Seriously,  is anyone on TV having as much fun as Andy Cohen? Kathie Lee and Hoda, take note.

Watch Ralph and Holly giggle their way through a round of  “Would You Rather”:

Ralph clearly knows how to deliver some naughty “Harry Potter” lines: