This is a coloured pic of a friend of mine on DA http://www.deviantart.com/deviation/59018185/ that's the sketch so I see you guys around here again

Btw the little story from her was: Mephiles, out of nowhere, comes from behind and clamps Shadow's mouth shut and binds him with dark aura. He crystallizes his other index finger.
"Do exactly as I say, and I promise I won't slit your throat..." He said slyly...
So yeah:SONIC YAOI