Christa, I also wanted to tell you that when Scout first saw R&R she acted like a wildcat, no kidding. She hissed, growled and spit. We had her and the other big guys in the sunroom with doors shut and the kittens out in the family room where they could all see each other through the French doors. Ripley and Jazz just looked at them like "oh great, more cats" but Scout hissed with her mouth opened wide and she looked deranged. I was afraid I would never be able to trust her with them but we slowly introduced them and now, even though she really doesn't like them, she tolerates them. She continuted to growl at them for over three weeks and she still growls if they bother her when she's eating or sleeping but at least it not just at the sight of them any more. She's protective of her scratching post too and has smacked them pretty hard for playing on it when she's using it but they are learning.

I don't know if anyone has suggested this to you yet, but let Josie smell a towel or blanket that Brodie has been using so she can get used to his scent. Also so do the same for him. It may help ease the intros if they already recognize the scent.