This story is based on a request from Bobbyj251.  He suggested a shorter-lived version of the Fox Serum with a more drawn-out transformation.  The characters (Jill and Hannah) are his, although I introduced Max, and Dr. Welton is from the original Fox Serum story.  The actual sequence of what changed when is pretty much his, as was his choice of cat and dalmation.  Since there are many cat and dog TF stories out there, I took on the challenge of trying to make this one a bit different.  I hope it worked!