Rule 34 Dev - animal_genitalia animal_penis anthro balls being_watched big_balls big_penis biped black_body black_fur bodily_fluids book brown_body brown_fur brown_hair canine_genitalia canine_penis chair claws cum duo erection fur furniture genital_fluids genitals hair huge_balls huge_penis hyper hyper_balls hyper_genitalia hyper_penis inside knot looking_at_another looking_at_porn male masturbation navel nude penile penile_masturbation penis pornography sitting solo_focus spread_legs spreading text toe_claws vein white_balls lyme-slyme tek canid canine fox mammal 2016 digital_media_(artwork) english_text hi_res picture_in_picture signature|4779259555