S-line two-cell kittens are a pair of Internet celebrity sister cats. They are not purebred Angora cats or Turkish Persian cats, but the hybrid offspring of an ordinary white domestic cat and an ordinary black and white domestic cat. .

The reason why these two kittens are so outstanding is entirely due to genetic selection before birth. Therefore, S-line two-cell kittens are not a specific breed, but are hybrids of ordinary domestic cats.