Once all the human teeth from your mouth were replaced, you feel some of your hair begin to shed off as you feel your body stretch, while your clothes rip off your body, and you feel something sprout straight out of your back. The pain was so unbearable that you couldn't control yourself while you were on all fours.
You feel your t-shirt tear off your body as you look behind you to find a long dorsal fin has sprouted from behind you while you were struggling. 'Relax, my future ocean predator,' You hear a woman's voice call to you in your head while you were struggling to overcome the changes of your body that was happening. 'Your undersea brethren have fallen before you, so you must take the shape of them as you have been destined to. The teeth of the skeleton have chosen you for it to happen.'