FURVERT!

1:1 animal_genitalia animal_penis balls big_unflared_glans crotch_shot darkmare equid equine equine_genitalia equine_penis erection eunuch feral foreskin genital_focus genitals group horse humanoid_genitalia humanoid_penis long_foreskin long_penis male male/male male_feral mammal multi_genitalia multi_penis penis penis_focus penis_size_difference realistic_feral unflared