Rule 34 Dev - ambiguous_gender animal_genitalia animal_penis balls blue_body canid canine canine_genitalia canine_penis dipstick_tail erection featureless_crotch feral fox fully_sheathed genitals green_eyes hi_res knot male mammal markings model_sheet penis raised_tail rukifox sheath solo starling_fox tail tail_markings|9844984136