rule 34 abs anal anal sex anthro anthro penetrating anthro penetrating human balls big balls big dom small sub big muscles big nipples big pecs big penis black hair canid canine canis dominant drone duo erection first person view fur genitals goo creature goo suit goo transformation grey body grey fur hair hi res human human on anthro human penetrated human pov interspecies larger anthro larger male male malemale male penetrated male penetrating male penetrating male mammal multicolored hair muscles muscular muscular anthro muscular human muscular male nipples nude pecs penetrated pov penetration penile penile penetration penis penis in ass receiving pov red hair sex signature size difference slime smaller human smaller male smaller penetrated submissive submissive pov suit symbiote takahirosi text url wolf 9033895