"Yes," Sephiroth says, and there's the faintest hint of a growl to it. Not an aggressive growl, not precisely - it's almost more for emphasis. "I won't control you. I want you to do what you enjoy, what makes you happy. But at the end of the day..." He nips at the back of Genesis' neck. "...you're mine, always. You won't ever have the chance to forget that completely."