rule 34 5 fingers against surface against wall anal anal sex animal genitalia animal penis anthro anthro on anthro ass backsack balls blue eyes blue hair blue markings bodily fluids bound brick wall brown body brown fur canid canine canine penis canis clenched teeth close up clothing cum cum in ass cum inside cum on balls cum on ground cum while penetrated cumshot curatrix dark room domestic duo ejaculation erection facial markings fingers fur genital fluids genitals german shepherd green eyes grey body grey fur hair head markings herding hi res knot looking pleasured male malemale mammal markings matt wolf medieval neck grab night open mouth pastoral penetration penis prison prison cell rough sex sex shadow standing teeth torn clothing vallhund wall structure window wolf 6151816