FURVERT!

5:4 anal anal_penetration animal_genitalia animal_penis anus balls biped brallion butt claws digitigrade dinosaur dromaeosaurid duo equid equine equine_genitalia equine_penis erection feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral finger_claws genital_slit genitals hi_res hooves horse interspecies male male/male male_penetrated male_penetrating male_penetrating_male mammal penetration penile penis prehistoric_species quadruped reptile saurischian scalie sex shaded tail teeth theropod toe_claws unguligrade velociraptor