2017 animal_genitalia animal_penis anthro anthro_on_feral antlers anus balls bestiality big_dom_small_sub black_skin brown_balls brown_fur butt cervine cetacean cetacean_penis close-up duo erection eyes_closed feral fin fur genital_slit hooves horn internal interspecies larger_male lying male male/male mammal marine moose orca penis pig_(artist) rear_view sea sitting size_difference slim slit smaller_male smile teeth water whale white_skin