Great! And that's a good question...maybe first meeting, if we want that extra layer of awkward/unfortunate introductions? An added layer of Sokka wondering what kind of brother Papyrus is, or if he's also the type who doesn't think to grab a weapon in a dangerous situation...Truly though I'm up for either approach, if you have a specific preference! I'd be happy to work out handwaved details or bang out a quick TDM thread, but there are also plausible reasons why they might not have met before this. Sokka being at school (I think kids only got a week off for Dec. holidays back then), or at the library, or just out and about trying to learn as much as he can.