Rule 34 Dev - abs anal anal_penetration animal_genitalia animal_penis anthro anus balls biceps big_balls big_muscles bodily_fluids butt cum cumshot duo ejaculation equine_genitalia equine_penis erection flared_penis fur genital_fluids genitals hair handjob hooves horn lying male male/male male_penetrated male_penetrating male_penetrating_male muscular muscular_male nipples nude on_side orgasm pecs penetration penile penis sex spooning spread_legs spreading text vein sudonym mythology equid equine horse mammal mythological_creature mythological_equine unicorn english_text|1791028295