FURVERT!

4_toes anal anal_penetration anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro arthien barn black_hair black_tail bodily_fluids brown_body brown_fur butt canid canine clenched_teeth cum cum_in_ass cum_inside duo equid equine eyes_closed feet fur genital_fluids hair hay hay_bale hi_res hooves horse inside joonkorner male male/male male_penetrated male_penetrating male_penetrating_male mammal marvin_(marvin)muscular muscular_anthro muscular_male pawpads penetration penile penile_penetration penis_in_ass sex size_difference smaller_penetrated tail teeth toes white_body white_fur