FURVERT!

2014 all_fours animal_genitalia animal_penis anthro anus ass_up backsack balls bed black_nose bodily_fluids butt canid canine canine_genitalia canine_penis canis claws dog_tags domestic_dog erection fur furniture genital_fluids genital_focus genitals german_shepherd green_eyes hand_on_penis herding_dog hi_res inviting knot looking_at_viewer looking_through looking_through_legs low-angle_view lying magnum_(artist)male mammal nude on_front pastoral_dog pawpads paws penis penis_backwards perineum precum presenting presenting_hindquarters presenting_penis raised_tail rear_view seductive smile solo spread_legs spreading tail vein veiny_penis white_body white_fur worm's-eye_view