FURVERT!

4_fingers anthro anus balls bed bite black_anus black_balls black_hair black_penis black_perineum brown_body butt duo equid equine equine_anus female fingers from_behind_position furniture genitals hair hooved_fingers hooves horse intraspecies lemurlemurovich male male/female mammal neck_bite penetration penile penile_penetration penis penis_in_vagina perineum pubes puffy_anus sex teeth vaginal vaginal_penetration vulva