FURVERT!

anal animal_genitalia animal_penis anthro anus balls bodily_fluids border butt canid canine canine_genitalia canine_penis canis digital_media_(artwork)erection fur genitals hair knot male mammal nude paws penis presenting presenting_anus presenting_hindquarters rear_view simple_background smile solo spread_butt spread_legs spreading teeth unknown_artist white_border wolf