Rule 34 Dev - 2boys anal anal_sex anatomically_correct anatomically_correct_genitalia animal_genitalia animal_penis anthro ass balls bodily_fluids canid canine canine_penis canis chest_tuft domestic_dog dripping duo english_text equid equine equine_penis gay genital_fluids genitals heart hi_res hooves horse looking_down male male/male male_only mammal motion_blur motion_lines nervous nipples on_bottom on_top onomatopoeia penetration penis precum precum_drip rabbitisyellow reverse_cowgirl_position saliva saliva_on_tongue saliva_string sex shaking sheath size_difference sound_effects speech_bubble spots spotted_body spotted_genitalia spotted_penis spread_legs spreading stretched_anus stuttering text tuft yaoi|5491425184