Rule 34 Dev - animal_genitalia animal_penis arched_back balls black_body black_fur blue_background bodily_fluids border_collie breath canid canine canine_genitalia canine_penis canis cheek_tuft chess_(mintyderg) chest_tuft collie cum_on_pillow digitigrade domestic_dog erection facial_tuft feral fur genitals grinding herding_dog hi_res knot knotted_penis looking_pleasured male mammal masturbation mintyderg pastoral_dog penile penile_masturbation penis pillow pillow_humping quadruped sheepdog simple_background snout solo sweat tongue tongue_out tuft white_body white_fur|12831279040