How are things going now? My cats, now about 15 and 16 years old, who live with my dad in South Africa, had a very fiery introduction when they were younger but are now inseparable. Then I didn't know anything about careful introductions, I just opened the carrier containing Chester, and said "get on with it". It started off with Jasmine immediately going into attack mode, and Chester being the gentleman he is, did not respond with aggression neither did he try and assert his dominance, he just took it all in his stride. She didn't hurt him at all, but after a day or two of hissing and posturing, it all settled down, and now they live in perfect harmony. They are the best company for my dad, who lost my mom about 20 or so months ago, and he treats them like his babies.