Rule 34 Dev - 2000s_and_2010s_style animal_genitalia animated big_brian closed_eyes duo equine erection fan_character female friendship_is_magic hair head_out_of_frame hooves horn horse horsecock inside lying male mammal multicolored_hair my_little_pony on_side open_mouth penetration penis pokehidden pony purple_hair purple_skin pussy red_penis red_skin sex smile straight tongue twilight_sparkle_(mlp) two_tone_hair vaginal_penetration|2042375928