Rule 34 Dev - 2018 4_toes 5_fingers anal anal_sex animal_genitalia animal_penis anvil_position blush canine canine_penis claws clenched_teeth closed_eyes collar detailed_background erection fox fur grass green_fur green_hair grey_fur hair holding_leash holding_object husky itchavi jailbird knot leash leash_pull legs_up lukehusky lying male mammal on_back open_mouth outside penetration penis precum sex smile teeth toes white_fur yaoi|3056504360