She felt a sudden pain hit her stomach, a contraction. She threw on the collar morphed into a dog and used her canine form to rush to an isolated barn. Falling to all fours she kicked the collar off her neck with her hind leg. She then started to change into a dog woman. Her tail bone extended as the bony mass became a furry tail, her ears covered in dog hair became long and pointed rising out of her hair.
Her auburn hair darken to brown and receded into her scalp as hair grew across her nude form. Her fingers fused together and became paw-hands. with sharp hook like nails, pads made the skin on her palms tough and hard like leather.
Her cute button nose receded as her jaw started to jut forward and her teeth grew pointed and sharp. The extra hair and receded forehead had the look of her being a lead actress in an 80s werewolf flick.
Her ass narrowed to become more compact as she started to pace around the floor like a dog. The pain of the contractions were some combine of a woman screaming and a dog howling. Her breasts swung but another two sets of nipples appeared on her stomach as her pubic hair became thick and furry spreading life wildfire from her vagina around her waist and up her stomach covering her breasts joining her hair on her arms and throat.
"Ah fuck!" then followed dog like whining.
Somewhere between human and beast, ready to give birth. Her vagina expanded and started to leak fluid as her contractions became faster as she howled and screamed at the same time. The orgy with her brother that had gotten her pregnant had been lost in the burning pain of child birth. Like a dog with its butt of the ground she started to howl as she gave birth to her the new life entered the world crying like a human baby born on the floor of a dilapidated barn...