Yaaaaaaaaaaay they did it! Shit be gay!
The drama was cleared away literally just as fast as it showed up. A tad abrupt. Also I'm a little sad my theory didn't pan out, I thought since Nagisa said "I like you" a while ago, she thought they were already going out, so when Mashiro confessed, she'd be like "Uh yeah?"
BUT TWO GIRLS KISSED SO THAT'S ALL THAT MATTERS
That first kiss though. I love the "THIS IS REALLY WEIRD ISN'T IT?" panel. I think Mashiro is finding out she has a blindfold kink.