We just got a ten week old kitten that looks rather like a javanese; marked like the siamese but without the classic head and face if a siamese. We are introducing her to our 16 week old male. He loves her and stares at her. The problem is that our newcomer automatically hisses and swats at him. Has anyone had a similar experience and how is this best addressed? She loves us though. We want her to grow up playing with our older kitten. Any advice?