At that instant, you feel an intense pain in your lower back, as new
muscle growth and spinal lengthening process begins. You double over
with unbearable pain your lower back, unable to straighten upright.
Soon, you feel a new sensation from a new body part that was never there
before. You realize you are now growing a tail. A tail of the ass you
are quickly becoming. You feel it lengthening, as it worms its way down
your legs.
End of Part Two of Phase Three
Beginning of Part Three of Phase Three: Hind Legs.