FURVERT!

anthro anus balls black_hair black_penis butt canid canine canis faren farens_hell fluffy fluffy_tail fur genitals geometric_background grey_anus grey_balls grey_body grey_fur hair hand_on_butt hi_res legs_up looking_at_viewer lying male mammal on_back penis presenting presenting_hindquarters simple_background solo spread_butt spreading tail white_hair wolf