Rule 34 Dev - animal_genitalia animal_penis becoming_erect big_penis bodily_fluids cum dialogue equine_genitalia equine_penis erection feathered_wings feathers female feral flaccid genital_fluids genitals growing gynomorph half-erect horn huge_penis hyper hyper_genitalia hyper_penis intersex long_penis masturbation orgasm penile penile_masturbation penis solo wings emmapresents friendship_is_magic hasbro my_little_pony mythology nightmare_moon_(mlp) equid equine mammal mythological_creature mythological_equine winged_unicorn 5:4 animated flash interactive sound|2449937315