I lost track of a one-shot in which Blaine and Sebastian spend the night together in a hotel. I think it was Kurt's idea, because he wanted them to get it out their system, and he was totally supportive of the hook-up. He packed Blaine's bag for him and texted Blaine about the (food he was eating?) or (movie he was watching?) while Blaine was with Sebastian and Blaine was all "aww, I wanna do that too!" Sebastian was a bit more serious about the whole event, while Blaine was more like, "okay you're hot and will do for tonight, but my boyfriend is 10 million times better than you in every way." The next morning, Kurt picks Blaine up and they resume being a perfect couple and live happily ever after.
Anyone know it?