FURVERT!

anthro anus balls bed butt canid canine canis claws dobermann domestic_dog duo erection furniture genitals hi_res kneeling knot knotted_penis looking_at_viewer looking_back looking_back_at_viewer lorenzobrezo low-angle_view male mammal nude open_mouth open_smile pawpads penis perineum pinscher presenting presenting_hindquarters rear_view smile solo spread_butt spreading