yduras

From the Mate or Die entry:

• In the Harry Potter fandom, the Snape/Lupin ship saw a great number of fanfics using this trope, where Snape and Lupin were imprisoned together right before a full moon. This would mean Snape's death as soon as Lupin took upon his werewolf form, but if Lupin considered Snape as his "mate", the werewolf would spare them. Therefore...
  • A particularly horrible fanfic featured a once-in-1000-years event where Hogwarts ghosts would compulsively kill anyone who was innocent (i.e. a virgin). Hermione didn't quite get out, so Snape had to go in to rescue her...yes, that way.
  • It was also a particular favorite of Harry/Draco writers, who invented the Male Veela fic, where poor Draco had to bond (sexually, of course) with his Soul Mate, or perish. Naturally, his worst enemy was his destined Soul Mate.
    • What the hell have you people been reading? Stop that!