FURVERT!

all_fours animal_genitalia animal_penis anthro anus aroneri balls benawi border_collie butt canid canine canine_genitalia canine_penis canis claws collar collie digitigrade domestic_dog erection genitals grey_eyes hair herding_dog hi_res knot leash looking_back male mammal nude pastoral_dog pawpads penis perineum presenting presenting_hindquarters raised_tail red_hair sheepdog smile solo tail