Rule 34 Dev - 2boys adventure_time anal anal_sex angry animal_genitalia anus backsack balls bathroom blonde_hair blue_eyes blush brother/brother brothers canid canine_genitalia canine_penis cartoon_network comic comic_page cum domestic_dog duo english_text erect_penis erection female femboy finn_the_human flashback gay genital_fluids genitals glasses hi_res highres human imminent_sex incest insertion jake_the_dog king_worm knot lifting lifting_person male male/male male_focus male_only moaning naked nervous nude penetrating_pov penetration penis pink_body pink_hair pink_skin precum princess_bubblegum ra4s red_penis rough_sex shapeshifter size_difference size_play smiling spiral_eyes spread_legs spreading steam stretching sweat translated twink twitching yaoi yellow_fur|9770706984