FURVERT!

anthro anus armpit_fetish armpit_sniffing asinus balls big_balls big_butt bodily_fluids butt butt_sniffing donkey english_text equid equine genitals group group_sex growth growth_serum hi_res horse male male/male mammal musk nose_to_anus puffy_anus sex sniffing sweat sweaty_anus sweaty_balls sweaty_butt sweaty_genitalia taking_turns text velocirection