lol, I had read somewhere in some comment god only knows where about someone implying Genesis and Aerith were half-siblings; it kinda stuck in my head once it clicked later, and looking back, it might have been you who said it. XD
And that part about the impossible was where the fic hit the tipping point and went all Jenova Bad Touch. x_X
And sorry this was kind of very late! I had hoped to have it done when it was due since I knew it was your b-day, but the election (and teen!Gen-n-Angeal fic) ate my brain.