Rule 34 Dev - 2015 anthro armpits aura_spark bioluminescence black_hair breasts collar cutie_mark duo equine fan_character female glowing glowing_eyes hair hat headgear horn horse leash mammal metalfoxxx my_little_pony nipple_piercing nipples piercing pony purple_hair pussy riding_crop top_hat unicorn whip yuri|2332099744