Curse of the Cat Woman from Channel 6 - 30 (Patreon)

The itch at the base of her spine had become a burning swelling beneath the skin, cells mutated and expanded, forming a tight mound at the top of her rounded ass.  Like kernels popping in a pan, gristly lumps expanded one by one to form tiny balls of bone at the base of her spine. 

With a frustrated yowl she suddenly sprang forward from the couch to her hands and knees.  The mound at the base of her spine continued to fill with bone and muscle as it stretched out from the top of her torn waistband.  Fresh and pink, the small stump of a tail flicked and darted about.  Irma couldn't tear her wide eyes away from the unbelievable sight and the dull popping sounds that ruptured away beneath the skin and found herself stepping slowly forth in awe.

Breathing deeply in through hissing teeth, April's inhuman eyes rolled about, flickering uncontrollably as her arched body continued to shift and swell.