rule 34 2021 anus bite biting lip biting own lip clothing dialogue english text equid equine female feral footwear friendship is magic full length portrait gaping gaping pussy genitals hair looking back mammal mostly nude my little pony one leg up pink body pink hair pink tail pinkamena mlp pinkie pie mlp pony portrait presenting presenting pussy pussy raised leg redxbacon self bite simple background socks solo spread legs spreading text white background 5472377