It had to happen sooner or later. For better? For worse? But now, like Billy and others before you, you stand on the brink of your final change.
When you wake up, you notice an angry, sore spot on the bare patch of arm that has yet to be covered by fur..... but, unfortunately, about an hour later, that's not quite the truth. The fur begins to creep and itch and spread over the few remaining spots of unfurred skin.
Then, a deep bone-grinding crunch accompanies the further dislocation of your big toes as your feet finish changing to becoming just about as useful as your hands.
The striking black and white hair covers the rest of your hair, and then, finally, your sinuses explode in pain as your face narrows and pushes out, becoming a full, animalistic muzzle.