rule 34 all fours anal anthro anus anus lick beak bite biting lip biting own lip black beak black eyelids black hair black hands black nose black sclera blush bodily fluids brown mustache chair clenched teeth clothed clothednude clothed male nude male clothing cottondraws doctor starline dr eggman duo erection eye contact eyewear fur furniture genital fluids genitals gloves goggles goggles on head grin hair half closed eyes handwear human idw publishing looking at another looking back looking pleasured male malemale mammal monotreme motion lines multicolored body multicolored fur multicolored hair narrowed eyes nude open mouth open smile oral pale skin penis penis backwards platypus precum purple eyes red clothing red eyes red nose red topwear rimming saliva sega self bite sex shaking shivering simple background sitting smile smirk sonic series sonic the hedgehog comics sonic the hedgehog idw sonic the hedgehog series spurs sweat tail motion tailwag tapering penis teeth tongue tongue out topwear trembling two tone body two tone fur two tone hair two tone hands white body white clothing white fur white gloves white hair white handwear white tail 5271197