Travel Companions
Pairings: Implied Seishirou/Subaru, but probably not the Seishirou you’re thinking
Warning: Slash
Summary: Post-Rainbow Bridge Subaru decides he wishes to travel the worlds. Yuuko, being the wise, amused, and sadistic person she is, assigns him the first and last travelling companion you would imagine. Yes, Tsubasa!Seishirou.
Comments: If it’s a Tsubasa fic, I’m never quite sure whether to count it as a crossover. Especially if it also has a lot of XXXHolic stuff in it. That aside, this is the perfect solution to what happens to Seishirou in X. I mean, hell, Clamp’s even kind enough to provide their own spare Seishirou, for Subaru’s personal use, I’m sure. The fanfic itself is not extraordinarily well-written, but it’s good, solid writing that suits the fic. And the concept is wonderful. I really enjoyed the omake, too.
One-shot, complete. Optional Subaru-POV followup available as well.