rule 34 anthro anthrofied anus ass book breasts clitoris disembodied penis duo english text equine erection female friendship is magic fur glans greyscale hair horn humanoid penis looking at viewer male mammal miketheuser monochrome multicolored hair my little pony nipples open mouth penis presenting presenting hindquarters presenting pussy pussy solo focus spread legs spreading straight text twilight sparkle mlp uncut unicorn 2722575