You try to sneak as quietly as possible on your heavy, pawlike feet and try to stay behind the hunter who hasn't noticed a thing and is still looking through his scope. He seems ready to fire, so you still try to hurry as much as possible. You tap him on his shoulder, he turns around and sees you. He tries to grab his gun but one slam from your mighty hands leaves him groaning on the ground. He quickly crawls up and tries to run away, but once again you are too quick for him and hold him firmly in a bear hug. "Who...who are you?", he stammers. "That doesn't matter. What matters is who you are. Many years ago, you shot my mother, straight through the skull, leaving me and my brothers and sisters without a mother. They're probably all dead now, but nonetheless you'll make up for it soon." You move your mouth close to his neck and bare your long, ursine fangs. With a mighty snap of your jaws, they sink into his flesh and it almost seems as if the deeper you push your own teeth, the longer his own get. His body starts swelling beneath his clothes, the thick brown fur already sticking out. His fingers and toes inflate to twice their thickness, melting together into big round paws and growing sharp black claws. His clothing bursts, revealing his huge new mass of muscle and fat covered in rough brown fur. His body is now colossal compared to his original size, and his reshaping skeleton hardly allows his to stand straight to he drops onto his paws. His jaws have become larger and more square, and his nose is now flat and black. His ears move to the top of his head, becoming short and round. To top off his ursine form, a short tail stub of fur pushes out through his spine, completing his transformation into an adult bear. "Think you're done? Not quite...as I said, you're going to take my mother's place and that will require a little change of equipment", you grin. His large bear penis now starts moving backwards, sucking his balls along until they seem to invert right below his butt and sucking shut moments later into a female bear's vagina. She lets out a roar of shock but you ignore her, as you now deem her ready to fulfill her new purpose.