FURVERT!

1:1 anal anal_penetration anthro balls bodily_fluids body_horror bulge cock_transformation equid equine genital_fluids genitals haan_(character)hi_res living_penis male mammal mephiphage merging monochrome penetration penis penis_mouth penis_snake precum prehensile_penis reptile scalie sentient_penis sketch snake solo topazknight transformation unusual_anatomy unusual_genitalia unusual_penis zebra