Okay, some more specific lines I would love to try! I'd prefer to play the characters in bold; if both are bold, I'll play either.
Harry Potter: Sirius/Remus - I'd prefer to play Remus! Snape/Narcissa, Snape/Hermione , Ginny/Harry, Hermione/Ron Twilight Crossovers: Remus/Bella Swan, Sirius/Bella Swan Buffy the Vampire Slayer crossovers:Sirius/Buffy Summers, Remus/Buffy Summers, Sirius or Remus/Willow Rosenberg Doctor Who/Twilight: Ten/Bella Swan Doctor Who/HP: Ten/Hermione G., Ten/Ginny W., Twilight/Harry Potter: Hermione Granger or Ginny Weasley/Jacob Black or Edward Cullen Just Twilight: Jacob/Bella, Edward/Bella, Esme/Carlisle
I love AU lines, btw. Also check out my journal for others. If you've got other pairings in mind, toss me your ideas! You can catch me on AIM at backtohogwarts sometimes, or we can plot in journals!