Rule 34 Dev - animal_genitalia animal_penis anus balls beak bodily_fluids cum cumshot cutie_mark ejaculation equine_genitalia equine_penis erection feathered_wings feathers feral flared_penis genital_fluids genitals hooves knot legs_up lying male masturbation medial_ring on_back open_mouth orgasm penile penile_masturbation penis sheath simple_background solo spread_legs spreading tongue tongue_out wings petrock european_mythology greek_mythology hasbro my_little_pony mythology fan_character thundersong avian hippogriff mammal mythological_avian mythological_creature line_art monochrome|4908600165