Rule 34 Dev - 2010 abs all_fours anal anal_sex animal_genitalia anthro anus ass balls bed canine canine_penis claws close-up closed_eyes comic cum deep_penetration dialogue duo erection fox fur gay knot knotting lube male mammal marcus masturbation monochrome nude open_mouth orgasm penetration penis penis_tip piercing reis rukis sex shaded teasing text wolf|1864994136