FURVERT!

6:5 aged_down ambiguous_fluids animal_genitalia animal_penis anthro ball ball_gag blood blue_eyes blush bodily_fluids canid canine canine_genitalia canine_penis canis collar collar_pull domestic_dog enjoyment flexible furgonomic_piercing furgonomics gag genital_mutilation genital_piercing genital_torture genitals gore gore_focus hi_res huanaaa infestation internal internal_sheath male mammal mutilation parasite parasite_in_urethra parasites_under_skin penis piercing prostatic sheath sheath_piercing solo splits spread_legs spreading tugging_piercing what