rule 34 absurd res against surface anus ass big anus big butt black hair black mane black tail crown equid equine eyebrows fangs feral friendship is magic gaping gaping anus glass hair hasbro hi res horn king sombra mlp looking at viewer looking back male mammal mane my little pony on glass perineum pony pony dreaming pressed against puffy anus raised tail red eyes regalia smile smiling at viewer solo teeth teeth showing teeth visible unicorn unicorn horn 5896041