FURVERT!

anal anal_fluids anal_juice_string anal_penetration anal_prodding anthro anus australian_cattle_dog backsack balls bedlam_(zear)big_anus bodily_fluids butt canid canine canis cattledog clothing cremaypanu domestic_dog fur gaping gaping_anus genitals grey_background hair herding_dog hi_res legs_up long_hair male male_penetrated mammal markings monochrome narrowed_eyes pastoral_dog penetration perineum presenting presenting_anus presenting_hindquarters simple_background solo spots spotted_markings sweat sweatdrop sweaty_butt tail teeth