FURVERT!

3_heads after_transformation animal_genitalia animal_penis anthro big_breasts big_penis bodily_fluids breast_play breasts canid canid_demon canine canine_genitalia canine_penis canis cerberus cum cum_string demon drooling erica_(artist)european_mythology genital_fluids genitals greek_mythology gynomorph hellhound huge_penis intersex knot mammal masturbation multi_head mythological_canine mythological_creature mythology nipples penile penile_masturbation penis saliva solo story story_in_description tongue tongue_out transformation vein veiny_knot veiny_penis wolf