Artist's Note:
This comic sprouted from a conversation Sozo & I had when we were coming up with last week's FF7 comic. It was a single observation, and this is the result.
Writer's Note:
My R-rated idea for this comic was that their hair/bang-thingies function as an external set of vampiric fangs that Aerith and Sephiroth could administer with a headbanger-style headbutt, impaling their victims in the forehead in order to suck out their life-juices.
...which means it's probably a good thing we went with the other idea.