FURVERT!

anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anus ass_up backsack balls bedroom_eyes bent_over biped black_nose border_collie butt butt_heart canid canine canine_genitalia canine_penis canis cashmere_(cashmerix)cheek_tuft claws collie domestic_dog erection facial_tuft feet fingers floppy_ears fur genitals grey_body grey_fur half-closed_eyes herding_dog hi_res illbarks looking_back male mammal multicolored_body multicolored_fur narrowed_eyes nude pastoral_dog penis penis_tuck perineum pink_anus pink_penis presenting presenting_anus presenting_balls presenting_hindquarters purple_eyes seductive sheepdog smile smirk solo spots spread_anus spread_butt spreading tongue tongue_out tuft white_balls white_body white_fur