Rule 34 Dev - animal_genitalia animal_penis balls big_unflared_glans claws equine_genitalia equine_penis erection feral fur genitals hybrid_genitalia hybrid_penis knot knotted_equine_penis knotted_penis looking_at_viewer lying male on_side penis sheath smile solo tail tail_tuft tuft unflared i-psilone felkin hi_res|23859506510