FURVERT!

anthro anus backsack balls bodily_fluids bottomless butt canid canine canis clothed clothing cum cum_in_ass cum_inside cum_string disembodied_penis domestic_dog duo erection fur gaping gaping_anus genital_fluids genitals greyscale hair humanoid_genitalia humanoid_penis looking_back male male/male mammal monochrome penis raised_tail sex shirt simple_background solo_focus tail topwear white_background yuguni yuguni_(yuguni)