Turn into a Hellhound, a dog that guards the underworld. Grow a muscular anthro dog body while you are trapped deep in this dark cavern. A transformation file involving being chained to the gates of the underworld. Also sets triggers to transform to and from this body - "time to become a Hellhound" and "Hellhound time over". This version includes growing a canine cock, some muskplay and masturbation - the original and Cerberus versions do not make any mention of genitals, and are elsewhere in my soundgasm. Scripts at https://mega.nz/folder/U9gnFChb#jTd9Sz7hIMp33BlbnqI0QA