FURVERT!

2021 animal_genitalia animal_penis anthro arms_tied back_groove balls biped blurred_background bound brown_body brown_fur brown_hair chain chain_leash collar equid equine equine_genitalia equine_penis erection eyes_closed flared_penis fur genitals hair hands_behind_back hi_res horse kneeling landysh leash legs_tied male mammal medial_ring penis rear_view restraints shoulder_blades solo spank_marks