FURVERT!

animal_genitalia animal_penis anthro balls big_penis comic dragon equid equine equine_genitalia equine_penis erection felid foreskin genitals group half-erect horse humanoid_genitalia humanoid_penis male male/male mammal masturbation monochrome multiple_scenes musclegut muscular mythological_creature mythological_scalie mythology nexus nude penis scalie smile standing tail thick_penis