FURVERT!

anal anal_penetration anatomically_correct anatomically_correct_genitalia anatomically_correct_penis animal_genitalia animal_penis anthro anthro_on_anthro ball_size_difference balls big_balls big_muscles bodily_fluids border canid canine canine_genitalia canine_penis chair_position cum cum_inside dominant duo equid equine equine_genitalia equine_penis erection eyewear facial_piercing feet fox from_behind_position genital_fluids genitals glasses gloves_(marking)gradient_background hindpaw holly_marie_ogburn horse interspecies kipfox knot large_penetration larger_dom leg_grab legs_up male male/male male_penetrated male_penetrating male_penetrating_male mammal markings medial_ring muscular muscular_male nose_piercing nose_ring nude outside_border paws penetration penile penile_penetration penis penis_size_difference piercing raised_leg red_fox ring_piercing septum_piercing sex sheath simple_background sitting size_difference smaller_penetrated spread_legs spreading stripes tail true_fox zebra zeeb_(holly_marie_ogburn)