rule 34 2022 2 penises 3 anthro batoid big man splatoon clothing derek hetrick diphallia diphallism fin fish flaccid gay genitals grey body headdress headgear headwear hi res humanoid genitalia humanoid penis long penis male male only manta ray marine markings multi genitalia multi penis nude open mouth penis simple background solo splatoon splatoon series splatoon 3 spots spotted body spotted markings standing white background 6640915