If there’s one thing Saturday Night Live’s Kate McKinnon and Aidy Bryant know how to do, it’s play tween characters with almost painful hyper-specificity. Last night’s “Study Buddy†sketch saw McKinnon’s Josh call his wingman, Bryant’s Jason, while the former is on a study date with “the Beyoncé of science class†(played by host Carey Mulligan). “Study Buddy†is a masterclass in perfectly executed character choices, from Josh’s pronunciation of the word “astute,†to Jason’s assurance that he knows what he’s talking about because he “did have a girlfriend at graphic design camp.†SNL’s costume and makeup department also deserve props for lived-in details like Jason’s top teeth braces and Josh’s too-large jeans. Such is the power of the sketch that Bryant almost breaks at the 3:30 mark, while Mulligan comes even closer for the last minute or so.